Physical Review Applied - Volume 19 Issue 2

EDITORS' SUGGESTION

Membrane-Based Optomechanical Accelerometry

Mitul Dey Chowdhury, Aman R. Agrawal, and Dalziel J. Wilson

Phys. Rev. Applied 19, 024011 (2023) - Published 3 February, 2023

Cavity optomechanical accelerometers promise ultrahigh sensitivity, in situ calibration, and radiation-pressure stabilization for e.g. chip-scale gravimetry or dark-matter searches. However, platforms that meet the unique technical demands are difficult to fabricate. The authors demonstrate a simple, scalable setup with an optical cavity based on a pair of vertically integrated Si $_{3}$ N $_{4}$ membranes of different stiffnesses. Radiation-pressure cooling of membrane motion enables resolution of chip acceleration to better than $10^{- 7} g$ , over a bandwidth of several kilohertz. A cryogenic array of these devices could be used to search for weak inertial forces due to dark matter.

EDITORS' SUGGESTION

Metastable Defects Decrease the Fill Factor of Solar Cells

Thomas Paul Weiss, Omar Ramírez, Stefan Paetel, Wolfram Witte, Jiro Nishinaga, Thomas Feurer, and Susanne Siebentritt

Phys. Rev. Applied 19, 024052 (2023) - Published 17 February, 2023

Solar cells are made from semiconductors, which inevitably include defects. The defects in Cu(In,Ga)Se $_{2}$ (CIGS) are known to be metastable: With excitation they change character, which can have a profound impact on device function. The authors show that these metastable defects reduce the efficiency of the solar cell due to an increased diode factor. It is possible to measure this quantity directly from the bare absorber (without needing to build the entire solar cell), yielding a lower limit for the whole device. Experiments and simulations indicate that metastable defects must be reduced to increase efficiency, and not just in CIGS-based solar cells.

EDITORS' SUGGESTION

Multiscale Modeling of Metal-Oxide-Metal Conductive Bridging Random-Access Memory Cells: From Ab Initio to Finite-Element Calculations

Jan Aeschlimann, Fabian Ducry, Christoph Weilenmann, Juerg Leuthold, Alexandros Emboras, and Mathieu Luisier

Phys. Rev. Applied 19, 024058 (2023) - Published 22 February, 2023

Continuum modeling is a popular, computationally efficient technique that can shed light on the resistance-switching properties of conductive bridging random-access memory (CBRAM) cells. Traditional models typically rely on many fitting parameters, but this approach uses material parameters extracted either from either ab initio or machine-learned empirical calculations. As proof of concept, the authors apply the computational framework to an SiO $_{2}$ -based CBRAM cell, and reveal the relevance of Joule heating in nanoscale devices. With the proposed multiscale methodology it is possible to explore the potential of not-yet-fabricated memory cells, and to optimize their design reliably.

EDITORS' SUGGESTION

Multiple Tin-Vacancy Centers in Diamond with Nearly Identical Photon Frequency and Linewidth

Yasuyuki Narita, Peng Wang, Keita Ikeda, Kazuki Oba, Yoshiyuki Miyamoto, Takashi Taniguchi, Shinobu Onoda, Mutsuko Hatano, and Takayuki Iwasaki

Phys. Rev. Applied 19, 024061 (2023) - Published 23 February, 2023

Tin-vacancy (Sn- $V$ ) centers in diamond, which possess good optical and spin properties, are a promising system for constructing quantum network nodes. Tin atoms are heavy, though, and generating photons with identical wavelength and linewidth from multiple Sn- $V$ emitters is challenging, due to the strain in the diamond host material. This study shows that multiple Sn- $V$ centers, formed deep within bulk diamond by ion implantation and high-temperature annealing, emit nearly identical photons. This leads to two-photon interference from distant centers, an important step toward building quantum network nodes.

EDITORS' SUGGESTION

High-Fidelity CNOT Gate for Donor Electron Spin Qubits in Silicon

Ludwik Kranz, Stephen Roche, Samuel K. Gorman, Joris. G. Keizer, and Michelle Y. Simmons

Phys. Rev. Applied 19, 024068 (2023) - Published 24 February, 2023

Epitaxial atom-based spin qubits in silicon exhibit excellent properties, and benefit from the outstanding scalability of that material platform. As silicon spin-based qubits now start to meet the 99% fault-tolerance threshold, the authors show how the nuclear spins inherent to the local magnetic environment can be engineered as atomic magnets to boost the fidelities of two-qubit logic gates. Modeling indicates that two-qubit CNOT gate fidelities as high as 99.98% are realistic, through silicon purification and careful engineering. This work provides a roadmap for atom qubits in silicon, showing how to optimize two-qubit gates at both the design and measurement stages.

LETTER

Experimental Realization of a Colloidal Ratchet Effect in a non-Newtonian Fluid

Guillermo Camacho, Alejandro Rodriguez-Barroso, Oscar Martinez-Cano, Jose R. Morillas, Pietro Tierno, and Juan de Vicente

Phys. Rev. Applied 19, L021001 (2023) - Published 21 February, 2023

The transport of matter via a ratchet effect represents a convenient way to extract useful work from a thermodynamic system, and can have direct applications in several microscale fluid-based technologies. Most realizations so far have been centered on using Newtonian fluids. This study shows how to achieve directed transport of magnetic microparticles in a non-Newtonian shear-thinning fluid under a square-wave magnetic force. This technique could be used in active microrheology, to infer the nonlinear properties of viscoelastic media.

Band Alignment and Photoresponse of ${La Fe O}_{3}$ -Based Heterojunctions

Yunwei Sheng, Mathieu Mirjolet, Mario Villa, Jaume Gàzquez, José Santiso, Andreas Klein, Jordi Fraxedas, and Josep Fontcuberta

Phys. Rev. Applied 19, 024001 (2023) - Published 1 February, 2023

Controllable Tunneling of Single Flux Quanta Mediated by Quantum Phase Slip in Disordered Superconducting Loops

J.A. Potter, J.C. Fenton, and P.A. Warburton

Phys. Rev. Applied 19, 024002 (2023) - Published 1 February, 2023

Coupling a Main-Group Metal with a Transition Metal to Create Biatom Catalysts for Nitric Oxide Reduction

Yanmei Zang, Qian Wu, Shuhua Wang, Baibiao Huang, Ying Dai, and Yandong Ma

Phys. Rev. Applied 19, 024003 (2023) - Published 1 February, 2023

Annealing Effects of Multidirectional Oscillatory Shear in Model Glass Formers

Vishnu V. Krishnan, Kabir Ramola, and Smarajit Karmakar

Phys. Rev. Applied 19, 024004 (2023) - Published 1 February, 2023

Growth and Form of Rippled Icicles

Menno Demmenie, Lars Reus, Paul Kolpakov, Sander Woutersen, Daniel Bonn, and Noushine Shahidzadeh

Phys. Rev. Applied 19, 024005 (2023) - Published 2 February, 2023

Modeling Dielectric Loss in Superconducting Resonators: Evidence for Interacting Atomic Two-Level Systems at the Nb/Oxide Interface

Noah Gorgichuk, Tobias Junginger, and Rogério de Sousa

Phys. Rev. Applied 19, 024006 (2023) - Published 2 February, 2023

Gate-Tunable Highly Efficient Spin and Valley Quantum Heat Engine in a Magnetic Tunnel Junction Based on Transition-Metal Dichalcogenides

Mohammad Alipourzadeh, Sakineh Vosoughi-nia, Yaser Hajati, and Imam Makhfudz

Phys. Rev. Applied 19, 024007 (2023) - Published 2 February, 2023

Three-Dimensional Mechanistic Modeling of Time-Dependent Dielectric Breakdown in Polycrystalline Thin Films

Qingqing Zhang, Lishuai Yu, Zhengpin Bian, Dong Yuan, Hailing Sun, Biao Tang, Xubing Lu, Feilong Liu, and Guofu Zhou

Phys. Rev. Applied 19, 024008 (2023) - Published 2 February, 2023

Intelligent Chameleonlike Metashells for Mass Diffusion

Zeren Zhang, Fubao Yang, and Jiping Huang

Phys. Rev. Applied 19, 024009 (2023) - Published 3 February, 2023

Unraveling the Turn-On Limitation of Quantum-Dot Electroluminescence via a Stepwise-Increasing Voltage Measurement

Xiaoxiang Zhu, Yuechao Wang, and Wenyu Ji

Phys. Rev. Applied 19, 024010 (2023) - Published 3 February, 2023

EDITORS' SUGGESTION

Membrane-Based Optomechanical Accelerometry

Mitul Dey Chowdhury, Aman R. Agrawal, and Dalziel J. Wilson

Phys. Rev. Applied 19, 024011 (2023) - Published 3 February, 2023

Cavity optomechanical accelerometers promise ultrahigh sensitivity, in situ calibration, and radiation-pressure stabilization for e.g. chip-scale gravimetry or dark-matter searches. However, platforms that meet the unique technical demands are difficult to fabricate. The authors demonstrate a simple, scalable setup with an optical cavity based on a pair of vertically integrated Si $_{3}$ N $_{4}$ membranes of different stiffnesses. Radiation-pressure cooling of membrane motion enables resolution of chip acceleration to better than $10^{- 7} g$ , over a bandwidth of several kilohertz. A cryogenic array of these devices could be used to search for weak inertial forces due to dark matter.

Coherent Population Trapping with High Common-Mode Noise Rejection Using Differential Detection of Simultaneous Dark and Bright Resonances

Peter Yun (云恩学), Rodolphe Boudot, and Emeric de Clercq

Phys. Rev. Applied 19, 024012 (2023) - Published 3 February, 2023

Titanium Nitride Film on Sapphire Substrate with Low Dielectric Loss for Superconducting Qubits

Hao Deng, Zhijun Song, Ran Gao, Tian Xia, Feng Bao, Xun Jiang, Hsiang-Sheng Ku, Zhisheng Li, Xizheng Ma, Jin Qin, Hantao Sun, Chengchun Tang, Tenghui Wang, Feng Wu, Wenlong Yu, Gengyan Zhang, Xiaohang Zhang, Jingwei Zhou, Xing Zhu, Yaoyun Shi, Hui-Hai Zhao, and Chunqing Deng

Phys. Rev. Applied 19, 024013 (2023) - Published 6 February, 2023

Mitigation of Quasiparticle Loss in Superconducting Qubits by Phonon Scattering

Arno Bargerbos, Lukas Johannes Splitthoff, Marta Pita-Vidal, Jaap J. Wesdorp, Yu Liu, Peter Krogstrup, Leo P. Kouwenhoven, Christian Kraglund Andersen, and Lukas Grünhaupt

Phys. Rev. Applied 19, 024014 (2023) - Published 6 February, 2023

Automated Reconstruction of Bound States in Bilayer Graphene Quantum Dots

Jozef Bucko, Frank Schäfer, František Herman, Rebekka Garreis, Chuyao Tong, Annika Kurzmann, Thomas Ihn, and Eliska Greplova

Phys. Rev. Applied 19, 024015 (2023) - Published 6 February, 2023

Impact of Reference-Layer Stray Field on the Write-Error Rate of Perpendicular Spin-Transfer-Torque Random-Access Memory

Arshid Nisar, Tanmoy Pramanik, and Brajesh Kumar Kaushik

Phys. Rev. Applied 19, 024016 (2023) - Published 6 February, 2023

Valveless Pumping at Low Reynolds Numbers

Gabriel Amselem, Christophe Clanet, and Michael Benzaquen

Phys. Rev. Applied 19, 024017 (2023) - Published 7 February, 2023

Band-Stop Filter Based on Glide-Symmetric Substrate-Integrated Coaxial Lines for Band-Gap Control and Bandwidth Customization

Xin Li, Jian Feng Chen, Wei Yuan, Zhan Hao Wu, Wen Xuan Tang, Lei Wang, Qiang Cheng, and Tie Jun Cui

Phys. Rev. Applied 19, 024018 (2023) - Published 7 February, 2023

Measuring Near-Field Radiative Heat Transfer in a Graphene- $Si C$ Heterostructure

Naeem Iqbal, Sen Zhang, Shuai Wang, Zezheng Fang, Yaoyuan Hu, Yongdi Dang, Minjie Zhang, Yi Jin, Jianbin Xu, Binfeng Ju, and Yungui Ma

Phys. Rev. Applied 19, 024019 (2023) - Published 7 February, 2023

Large Tunneling Magnetoresistance in Perpendicularly Magnetized Magnetic Tunnel Junctions Using ${Co}_{75} {Mn}_{25}$ / ${Mo / Co}_{20} {Fe}_{60} B_{20}$ Multilayers

Tatsuya Yamamoto, Tomohiro Ichinose, Jun Uzuhashi, Takayuki Nozaki, Tadakatsu Ohkubo, Kay Yakushiji, Shingo Tamaru, and Shinji Yuasa

Phys. Rev. Applied 19, 024020 (2023) - Published 7 February, 2023

Atomic Comagnetometer with a Closed-Loop Optically Aligned $^{87}$ $Rb$ Dual-Frequency Oscillator

Zhiguo Wang, Xiang Peng, Zhiqiang Xiong, Jintao Zheng, Hui Luo, and Hong Guo

Phys. Rev. Applied 19, 024021 (2023) - Published 8 February, 2023

Fluorescence Spectral Imaging Based on Computational Spectral Sensing

Jin Xiang, Qingyi Zhou, Soongyu Yi, and Yurui Qu

Phys. Rev. Applied 19, 024022 (2023) - Published 8 February, 2023

Square-Root Higher-Order Topology in Rectangular-Lattice Acoustic Metamaterials

Shi-Qiao Wu, Zhi-Kang Lin, Zhan Xiong, Bin Jiang, and Jian-Hua Jiang

Phys. Rev. Applied 19, 024023 (2023) - Published 8 February, 2023

Ferroelectric-Tunable Photoresponse in α- ${In}_{2} {Se}_{3}$ Photovoltaic Photodetectors: An Ab Initio Quantum Transport Study

Shibo Fang, Chen Yang, Qiuhui Li, Baochun Wu, Linqiang Xu, Shiqi Liu, Jie Yang, Jiachen Ma, Jichao Dong, Ying Li, Jinbo Yang, and Jing Lu

Phys. Rev. Applied 19, 024024 (2023) - Published 8 February, 2023

Mechanical Control of Nonlinearity in Doubly Clamped MEMS Beam Resonators Using Preloaded Lattice-Mismatch Strain

Chao Li, Boqi Qiu, Yuri Yoshioka, Kazuhiko Hirakawa, and Ya Zhang

Phys. Rev. Applied 19, 024025 (2023) - Published 9 February, 2023

Flow-Permeable and Tunable Metalens for Subdiffraction Waterborne-Sound Focusing

Lijuan Fan and Jun Mei

Phys. Rev. Applied 19, 024026 (2023) - Published 9 February, 2023

QAOA-in-QAOA: Solving Large-Scale MaxCut Problems on Small Quantum Machines

Zeqiao Zhou, Yuxuan Du, Xinmei Tian, and Dacheng Tao

Phys. Rev. Applied 19, 024027 (2023) - Published 9 February, 2023

Dual-Band Omnidirectional Invisibility of a Thin Slab with Antiscattering Coatings on Both Sides

Zhengjie Huang, Liang Peng, Zhongbo Zhu, Xiaojun Hu, Chun Wang, Jingxin Tang, and Dexin Ye

Phys. Rev. Applied 19, 024028 (2023) - Published 9 February, 2023

Multiple Nonvolatile Skyrmion States in Nanostructured Synthetic Antiferromagnetic Multilayers

Mangyuan Ma, Wen Siang Lew, and Fusheng Ma

Phys. Rev. Applied 19, 024029 (2023) - Published 10 February, 2023

Giant Anisotropic Gilbert Damping in Single-Crystal $Co$ - $Fe$ - $B (001)$ Films

Hongyue Xu, Haoran Chen, Fanlong Zeng, Jia Xu, Xi Shen, and Yizheng Wu

Phys. Rev. Applied 19, 024030 (2023) - Published 10 February, 2023

Synthetic Axion Response with Space-Time Crystals

Filipa R. Prudêncio and Mário G. Silveirinha

Phys. Rev. Applied 19, 024031 (2023) - Published 10 February, 2023

Superresolved Imaging Based on Spatiotemporal Wave-Front Shaping

Guillaume Noetinger, Samuel Métais, Geoffroy Lerosey, Mathias Fink, Sébastien M. Popoff, and Fabrice Lemoult

Phys. Rev. Applied 19, 024032 (2023) - Published 10 February, 2023

Large Tunable Perpendicular Magnetic Anisotropy in Ultrathin $Co$ -Based Ferromagnetic Films Induced by Antiferromagnetic $δ − Mn$

R.K. Han, L. Liu, H.L. Sun, H.R. Qin, X.P. Zhao, D. Pan, D.H. Wei, and J.H. Zhao

Phys. Rev. Applied 19, 024033 (2023) - Published 13 February, 2023

Field-Free Current-Induced Switching of L1₀- $Fe Pt$ Using Interlayer Exchange Coupling for Neuromorphic Computing

Kaifeng Dong, Zhe Guo, YiYi Jiao, Ruofan Li, Chao Sun, Ying Tao, Shuai Zhang, Jeongmin Hong, and Long You

Phys. Rev. Applied 19, 024034 (2023) - Published 13 February, 2023

Stochastic Magnetic Actuated Random Transducer Devices Based on Perpendicular Magnetic Tunnel Junctions

L. Rehm, C.C.M. Capriata, S. Misra, J.D. Smith, M. Pinarbasi, B.G. Malm, and A.D. Kent

Phys. Rev. Applied 19, 024035 (2023) - Published 13 February, 2023

Asymmetric Elastic Metasurface for Wave Manipulation Between Different Media

Sang Vin Jang, Sung Won Lee, and Joo Hwan Oh

Phys. Rev. Applied 19, 024036 (2023) - Published 13 February, 2023

High-Performance ${Fe}_{x} {Ge Te}_{2} −$ Based (x =4 or 5) van der Waals Magnetic Tunnel Junctions

Baochun Wu, Shibo Fang, Jie Yang, Shiqi Liu, Yuxuan Peng, Qiuhui Li, Zhongchong Lin, Junjie Shi, Wenyun Yang, Zhaochu Luo, Changsheng Wang, Jinbo Yang, Jing Lu, and Honglin Du

Phys. Rev. Applied 19, 024037 (2023) - Published 14 February, 2023

Scanning X-Ray Diffraction Microscopy of a 6-GHz Surface Acoustic Wave

M. Hanke, N. Ashurbekov, E. Zatterin, M.E. Msall, J. Hellemann, P.V. Santos, T.U. Schulli, and S. Ludwig

Phys. Rev. Applied 19, 024038 (2023) - Published 14 February, 2023

Interferometric Method for Direct Measurement of the Effective Mass in Two-Dimensional Systems

V. M. Muravev, A. V. Shchepetilnikov, K. R. Dzhikirba, I. V. Kukushkin, R. Schott, E. Cheah, W. Wegscheider, and A. Shuvaev

Phys. Rev. Applied 19, 024039 (2023) - Published 14 February, 2023

Ground-Vibration Suppression by a Matched Center of Mass for Microthrust Testing in Spaceborne Gravitational-Wave Detection

Shu Zou, Zhengwentao Cheng, Xian Zhang, Guanfang Wang, Hongfan Liu, Zebang Yang, Yuan Zhong, Jianping Liu, Liangcheng Tu, Shanqing Yang, and Zhu Li

Phys. Rev. Applied 19, 024040 (2023) - Published 14 February, 2023

Schottky-Contact Formation between Metal Electrodes and Molecularly Doped Disordered Organic Semiconductors

Lishuai Yu, Qingqing Zhang, Zhengpin Bian, Guangzheng Zuo, Harm van Eersel, Peter A. Bobbert, Reinder Coehoorn, Feilong Liu, and Guofu Zhou

Phys. Rev. Applied 19, 024041 (2023) - Published 15 February, 2023

Strongly Coupled Plasmon and Phonon Polaritons as Seen by Photon and Electron Probes

Pavel Gallina, Andrea Konečná, Jiří Liška, Juan Carlos Idrobo, and Tomáš Šikola

Phys. Rev. Applied 19, 024042 (2023) - Published 15 February, 2023

Error-Divisible Two-Qubit Gates

David Rodríguez Pérez, Paul Varosy, Ziqian Li, Tanay Roy, Eliot Kapit, and David Schuster

Phys. Rev. Applied 19, 024043 (2023) - Published 15 February, 2023

Twist-Induced Near-Field Radiative Heat Switch in Hyperbolic Antiferromagnets

Yuanyang Du, Jiebin Peng, Zhong Shi, and Jie Ren

Phys. Rev. Applied 19, 024044 (2023) - Published 15 February, 2023

Hybrid Quantum Systems with Strong Magnetic Coupling of a Magnetic Vortex to a Nanomechanical Resonator

Bo-Long Wang, Xin-Lei Hei, Xing-Liang Dong, Xiao-Yu Yao, Jia-Qiang Chen, Yi-Fan Qiao, Fu-Li Li, and Peng-Bo Li

Phys. Rev. Applied 19, 024045 (2023) - Published 16 February, 2023

Hybridized Propagation of Spin Waves and Surface Acoustic Waves in a Multiferroic-Ferromagnetic Heterostructure

Jilei Chen, Kei Yamamoto, Jianyu Zhang, Ji Ma, Hanchen Wang, Yuanwei Sun, Mingfeng Chen, Jing Ma, Song Liu, Peng Gao, Dapeng Yu, Jean-Philippe Ansermet, Ce-Wen Nan, Sadamichi Maekawa, and Haiming Yu

Phys. Rev. Applied 19, 024046 (2023) - Published 16 February, 2023

Improved Variational Quantum Eigensolver Via Quasidynamical Evolution

Manpreet Singh Jattana, Fengping Jin, Hans De Raedt, and Kristel Michielsen

Phys. Rev. Applied 19, 024047 (2023) - Published 16 February, 2023

Pressure-Optimized Band Gap and Enhanced Photoelectric Response of Graphitic Carbon Nitride with Nitrogen Vacancies

Peng Cheng, Deyuan Yao, Jinwei Yan, Tingting Ye, Huanhuan Liu, Hong Zeng, Xiaomei Pan, Genqiang Zhang, and Junfeng Ding

Phys. Rev. Applied 19, 024048 (2023) - Published 16 February, 2023

Nanomotion of Micro-Objects Driven by Light-Induced Elastic Waves on Solid Interfaces

Wei Lyu, Weiwei Tang, Wei Yan, and Min Qiu

Phys. Rev. Applied 19, 024049 (2023) - Published 17 February, 2023

Unveiling the Anomalous Photovoltaic Effect of Ferroelectric Domain Walls in ${Bi Fe O}_{3}$ Thin Films

Jianjun Lin, Yuang Chen, Hongru Wang, Bobo Tian, Ye Chen, Zhiyong Zhou, Fangyu Yue, Rong Huang, Chun-Gang Duan, Junhao Chu, and Lin Sun

Phys. Rev. Applied 19, 024050 (2023) - Published 17 February, 2023

State-Independent Nonadiabatic Geometric Quantum Gates

Yan Liang, Pu Shen, Li-Na Ji, and Zheng-Yuan Xue

Phys. Rev. Applied 19, 024051 (2023) - Published 17 February, 2023

EDITORS' SUGGESTION

Metastable Defects Decrease the Fill Factor of Solar Cells

Thomas Paul Weiss, Omar Ramírez, Stefan Paetel, Wolfram Witte, Jiro Nishinaga, Thomas Feurer, and Susanne Siebentritt

Phys. Rev. Applied 19, 024052 (2023) - Published 17 February, 2023

Solar cells are made from semiconductors, which inevitably include defects. The defects in Cu(In,Ga)Se $_{2}$ (CIGS) are known to be metastable: With excitation they change character, which can have a profound impact on device function. The authors show that these metastable defects reduce the efficiency of the solar cell due to an increased diode factor. It is possible to measure this quantity directly from the bare absorber (without needing to build the entire solar cell), yielding a lower limit for the whole device. Experiments and simulations indicate that metastable defects must be reduced to increase efficiency, and not just in CIGS-based solar cells.

On-Chip Unidirectional Waveguiding for Surface Acoustic Waves along a Defect Line in a Triangular Lattice

Yun Zhou, Naiqing Zhang, Dia’aaldin J. Bisharat, Robert J. Davis, Zichen Zhang, James Friend, Prabhakar R. Bandaru, and Daniel F. Sievenpiper

Phys. Rev. Applied 19, 024053 (2023) - Published 21 February, 2023

Detection of Mechanical Deformation Induced by Ultrafast Laser Irradiation Upon a Metallic Cantilever

Takuto Ichikawa, Aizitiaili Abulikemu, and Muneaki Hase

Phys. Rev. Applied 19, 024054 (2023) - Published 21 February, 2023

Efficient Room-Temperature Operation of a Quantum Dot Spin-Polarized Light-Emitting Diode under High-Bias Conditions

Kohei Etou, Satoshi Hiura, Soyoung Park, Junichi Takayama, Agus Subagyo, Kazuhisa Sueoka, and Akihiro Murayama

Phys. Rev. Applied 19, 024055 (2023) - Published 21 February, 2023

Anomalous Screening Effect of Superlattice-Doped $Ga As$ / $(Al,Ga) As$ Heterostructures under Illumination

Xiao-Fei Liu, Nikolai Spitzer, Haruki Kiyama, Arne Ludwig, Andreas D. Wieck, and Akira Oiwa

Phys. Rev. Applied 19, 024056 (2023) - Published 22 February, 2023

Parasitic-Free Gate: An Error-Protected Cross-Resonance Switch in Weakly Tunable Architectures

Xuexin Xu and M. Ansari

Phys. Rev. Applied 19, 024057 (2023) - Published 22 February, 2023

EDITORS' SUGGESTION

Multiscale Modeling of Metal-Oxide-Metal Conductive Bridging Random-Access Memory Cells: From Ab Initio to Finite-Element Calculations

Jan Aeschlimann, Fabian Ducry, Christoph Weilenmann, Juerg Leuthold, Alexandros Emboras, and Mathieu Luisier

Phys. Rev. Applied 19, 024058 (2023) - Published 22 February, 2023

Continuum modeling is a popular, computationally efficient technique that can shed light on the resistance-switching properties of conductive bridging random-access memory (CBRAM) cells. Traditional models typically rely on many fitting parameters, but this approach uses material parameters extracted either from either ab initio or machine-learned empirical calculations. As proof of concept, the authors apply the computational framework to an SiO $_{2}$ -based CBRAM cell, and reveal the relevance of Joule heating in nanoscale devices. With the proposed multiscale methodology it is possible to explore the potential of not-yet-fabricated memory cells, and to optimize their design reliably.

Interband Tunneling in a Type-II Broken-Gap Superlattice

Andrzej Kolek

Phys. Rev. Applied 19, 024059 (2023) - Published 22 February, 2023

Defects and Persistent Luminescence in $Eu$ -Doped $Sr Al$ $_{2}$ $O$ $_{4}$

Khang Hoang

Phys. Rev. Applied 19, 024060 (2023) - Published 23 February, 2023

EDITORS' SUGGESTION

Multiple Tin-Vacancy Centers in Diamond with Nearly Identical Photon Frequency and Linewidth

Yasuyuki Narita, Peng Wang, Keita Ikeda, Kazuki Oba, Yoshiyuki Miyamoto, Takashi Taniguchi, Shinobu Onoda, Mutsuko Hatano, and Takayuki Iwasaki

Phys. Rev. Applied 19, 024061 (2023) - Published 23 February, 2023

Tin-vacancy (Sn- $V$ ) centers in diamond, which possess good optical and spin properties, are a promising system for constructing quantum network nodes. Tin atoms are heavy, though, and generating photons with identical wavelength and linewidth from multiple Sn- $V$ emitters is challenging, due to the strain in the diamond host material. This study shows that multiple Sn- $V$ centers, formed deep within bulk diamond by ion implantation and high-temperature annealing, emit nearly identical photons. This leads to two-photon interference from distant centers, an important step toward building quantum network nodes.

Unidirectional Propagation of Spin Waves Excited by Femtosecond Laser Pulses in a Planar Waveguide

P.I. Gerevenkov, Ia.A. Filatov, A.M. Kalashnikova, and N.E. Khokhlov

Phys. Rev. Applied 19, 024062 (2023) - Published 23 February, 2023

Bilayer-Skyrmion-Based Design of Neuron and Synapse for Spiking Neural Network

Debasis Das, Yunuo Cen, Jianze Wang, and Xuanyao Fong

Phys. Rev. Applied 19, 024063 (2023) - Published 23 February, 2023

Control of Skyrmion Chirality in $Ta / Fe − Co − B / {Ta O}_{x}$ Trilayers by ${Ta O}_{x}$ Oxidation and $Fe − Co − B$ Thickness

R. Kumar, C.E. Fillion, B. Lovery, I. Benguettat-El Mokhtari, I. Joumard, S. Auffret, L. Ranno, Y. Roussigné, S.M. Chérif, A. Stashkevich, M. Belmeguenai, C. Baraduc, and H. Béa

Phys. Rev. Applied 19, 024064 (2023) - Published 24 February, 2023

Temperature Control of Diffusive Memristor Hysteresis and Artificial Neuron Spiking

D.P. Pattnaik, Y. Ushakov, Z. Zhou, P. Borisov, M.D. Cropper, U.W. Wijayantha, A.G. Balanov, and S.E. Savel′ev

Phys. Rev. Applied 19, 024065 (2023) - Published 24 February, 2023

Tunable Superconducting Flux Qubits with Long Coherence Times

T. Chang, T. Cohen, I. Holzman, G. Catelani, and M. Stern

Phys. Rev. Applied 19, 024066 (2023) - Published 24 February, 2023

Strong Coupling of a $Gd$ $^{3 +}$ Multilevel Spin System to an On-Chip Superconducting Resonator

Giovanni Franco-Rivera, Josiah Cochran, Seiji Miyashita, Sylvain Bertaina, and Irinel Chiorescu

Phys. Rev. Applied 19, 024067 (2023) - Published 24 February, 2023

EDITORS' SUGGESTION

High-Fidelity CNOT Gate for Donor Electron Spin Qubits in Silicon

Ludwik Kranz, Stephen Roche, Samuel K. Gorman, Joris. G. Keizer, and Michelle Y. Simmons

Phys. Rev. Applied 19, 024068 (2023) - Published 24 February, 2023

Epitaxial atom-based spin qubits in silicon exhibit excellent properties, and benefit from the outstanding scalability of that material platform. As silicon spin-based qubits now start to meet the 99% fault-tolerance threshold, the authors show how the nuclear spins inherent to the local magnetic environment can be engineered as atomic magnets to boost the fidelities of two-qubit logic gates. Modeling indicates that two-qubit CNOT gate fidelities as high as 99.98% are realistic, through silicon purification and careful engineering. This work provides a roadmap for atom qubits in silicon, showing how to optimize two-qubit gates at both the design and measurement stages.

Sensitivity Enhancement and Random Telegraph Noise in Magnetic Tunnel Junctions with Compensated Anisotropy

Guanyang He, Yiou Zhang, and Gang Xiao

Phys. Rev. Applied 19, 024069 (2023) - Published 27 February, 2023

Frequency-Multiplexed Storage and Distribution of Narrowband Telecom Photon Pairs over a 10-km Fiber Link with Long-Term System Stability

Ko Ito, Takeshi Kondo, Kyoko Mannami, Kazuya Niizeki, Daisuke Yoshida, Kohei Minaguchi, Mingyang Zheng, Xiuping Xie, Feng-Lei Hong, and Tomoyuki Horikiri

Phys. Rev. Applied 19, 024070 (2023) - Published 27 February, 2023

Large Spin-Orbit-Torque Efficiency and Room-Temperature Magnetization Switching in ${Sr Ir O}_{3} /$ Co-Fe-B Heterostructures

Peng Li, Sanyum Channa, Xiang Li, Laith Alahmed, Chunli Tang, Di Yi, Lauren Riddiford, Jacob Wisser, Purnima P. Balakrishnan, Xin Yu Zheng, Di Lu, Arturas Vailionis, Shan X. Wang, and Yuri Suzuki

Phys. Rev. Applied 19, 024076 (2023) - Published 28 February, 2023

Volume 19, Issue 2

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