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Proximity-induced Rashba spin-orbit interaction in BaMnO3|KTaO3 heterostructures for antiferromagnetic spintronics

Vivek Kumar and Nirmal Ganguli*

  • *Contact author: NGanguli@iiserb.ac.in
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Phys. Rev. B 114, 014422 – Published 23 July, 2026

DOI: https://doi.org/10.1103/jtym-lpxt

Abstract

Antiferromagnetic spintronics, a promising technology for ultrafast electronic devices, faces several challenges, including the lack of materials simultaneously hosting robust antiferromagnetism and adequate Rashba-like interaction. We design a heterostructure of BaMnO3|KTaO3 with the idea of proximity-inducing moderate Rashba spin-orbit interaction from the KTaO3 part to the BaMnO3 part, where the latter is already a robust antiferromagnet. Within our DFT calculations, the heterostructure reveals BaMnO3 bands near the Fermi level with a significant magnetic moment per Mn atom and a decent ordering temperature. Further, the BaMnO3 bands in the heterostructure exhibit linear Rashba interaction with a sizable Rashba coefficient, owing to its proximity to KTaO3. Our work can motivate future research by demonstrating the road map to proximity-induced Rashba interaction for antiferromagnetic spintronics.

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References (47)

  1. V. Baltz, A. Manchon, M. Tsoi, T. Moriyama, T. Ono, and Y. Tserkovnyak, Antiferromagnetic spintronics, Rev. Mod. Phys. 90, 015005 (2018).
  2. A. Ohtomo and H. Y. Hwang, A high-mobility electron gas at the LaAlO3/SrTiO3 heterointerface, Nature (London) 427, 423 (2004).
  3. N. Ganguli and P. J. Kelly, Tuning ferromagnetism at interfaces between insulating perovskite oxides, Phys. Rev. Lett. 113, 127201 (2014).
  4. J. A. Bert, B. Kalisky, C. Bell, M. Kim, Y. Hikita, H. Y. Hwang, and K. A. Moler, Direct imaging of the coexistence of ferromagnetism and superconductivity at the LaAlO3/SrTiO3 interface, Nat. Phys. 7, 767 (2011).
  5. L. Li, C. Richter, J. Mannhart, and R. C. Ashoori, Coexistence of magnetic order and two-dimensional superconductivity at LaAlO3/SrTiO3 interfaces, Nat. Phys. 7, 762 (2011).
  6. Z. Zhong, A. Tóth, and K. Held, Theory of spin-orbit coupling at LaAlO3/SrTiO3 interfaces and SrTiO3 surfaces, Phys. Rev. B 87, 161102(R) (2013).
  7. J. Chakraborty and N. Ganguli, Perovskite oxide heterojunction for Rashba-Dresselhaus assisted antiferromagnetic spintronics, Phys. Rev. B 102, 214425 (2020).
  8. L. M. Vicente‐Arche, J. Bréhin, S. Varotto, M. Cosset‐Cheneau, S. Mallik, R. Salazar, P. Noël, D. C. Vaz, F. Trier, S. Bhattacharya, A. Sander, P. Le Fèvre, F. Bertran, G. Saiz, G. Ménard, N. Bergeal, A. Barthélémy, H. Li, C. Lin, D. E. Nikonov, et al., Spin-charge interconversion in KTaO3 2D electron gases, Adv. Mater. 33, 2102102 (2021).
  9. V. Kumar and N. Ganguli, Rashba-like spin-orbit interaction and spin texture at the KTaO3(001) surface from DFT calculations, Phys. Rev. B 106, 125127 (2022).
  10. W. Lin, L. Li, F. Doğan, C. Li, H. Rotella, X. Yu, B. Zhang, Y. Li, W. S. Lew, S. Wang, W. Prellier, S. J. Pennycook, J. Chen, Z. Zhong, A. Manchon, and T. Wu, Interface-based tuning of Rashba spin-orbit interaction in asymmetric oxide heterostructures with 3d electrons, Nat. Commun. 10, 3052 (2019).
  11. S. Varotto, A. Johansson, B. Göbel, L. M. Vicente-Arche, S. Mallik, J. Bréhin, R. Salazar, F. Bertran, P. L. Fèvre, N. Bergeal, J. Rault, I. Mertig, and M. Bibes, Direct visualization of Rashba-split bands and spin/orbital-charge interconversion at KTaO3 interfaces, Nat. Commun. 13, 6165 (2022).
  12. A. Gupta, H. Silotia, A. Kumari, M. Dumen, S. Goyal, R. Tomar, N. Wadehra, P. Ayyub, and S. Chakraverty, KTaO3—The new kid on the spintronics block, Adv. Mater. 34, 2106481 (2022).
  13. M. Setvin, M. Reticcioli, F. Poelzleitner, J. Hulva, M. Schmid, L. A. Boatner, C. Franchini, and U. Diebold, Polarity compensation mechanisms on the perovskite surface KTaO3(001), Science 359, 572 (2018).
  14. P. Kim, K. T. Kang, G. Go, and J. H. Han, Nature of orbital and spin Rashba coupling in the surface bands of SrTiO3 and KTaO3, Phys. Rev. B 90, 205423 (2014).
  15. S. K. Ojha, S. K. Gogoi, P. Mandal, S. D. Kaushik, J. W. Freeland, M. Jain, and S. Middey, Oxygen vacancy induced electronic structure modification of KTaO3, Phys. Rev. B 103, 085120 (2021).
  16. N. Ganguli, A. Singh, V. Kumar, and J. Chakraborty, Mapping Rashba and Dresselhaus spin-orbit interactions to inversion asymmetry in perovskite oxide heterostructures, Phys. Rev. B 111, 064413 (2025).
  17. D. Marchenko, A. Varykhalov, M. Scholz, G. Bihlmayer, E. Rashba, A. Rybkin, A. Shikin, and O. Rader, Giant Rashba splitting in graphene due to hybridization with gold, Nat. Commun. 3, 1232 (2012).
  18. S. V. Eremeev, V. N. Men'shov, V. V. Tugushev, P. M. Echenique, and E. V. Chulkov, Magnetic proximity effect at the three-dimensional topological insulator/magnetic insulator interface, Phys. Rev. B 88, 144430 (2013).
  19. A. Avsar, J. Y. Tan, T. Taychatanapat, J. Balakrishnan, G. Koon, Y. Yeo, J. Lahiri, A. Carvalho, A. S. Rodin, E. O'Farrell, G. Eda, A. H. Castro Neto, and B. Özyilmaz, Spin-orbit proximity effect in graphene, Nat. Commun. 5, 4875 (2014).
  20. Z. Qiao, W. Ren, H. Chen, L. Bellaiche, Z. Zhang, A. H. MacDonald, and Q. Niu, Quantum anomalous Hall effect in graphene proximity coupled to an antiferromagnetic insulator, Phys. Rev. Lett. 112, 116404 (2014).
  21. F. Katmis, V. Lauter, F. S. Nogueira, B. A. Assaf, M. E. Jamer, P. Wei, B. Satpati, J. W. Freeland, I. Eremin, D. Heiman, P. Jarillo-Herrero, and J. S. Moodera, A high-temperature ferromagnetic topological insulating phase by proximity coupling, Nature (London) 533, 513 (2016).
  22. J. O. Island, X. Cui, C. Lewandowski, J. Y. Khoo, E. M. Spanton, H. Zhou, D. Rhodes, J. C. Hone, T. Taniguchi, K. Watanabe, L. S. Levitov, M. P. Zaletel, and A. F. Young, Spin-orbit-driven band inversion in bilayer graphene by the van der Waals proximity effect, Nature (London) 571, 85 (2019).
  23. S. Tamura and Y. Tanaka, Theory of the proximity effect in two-dimensional unconventional superconductors with Rashba spin-orbit interaction, Phys. Rev. B 99, 184501 (2019).
  24. Q. Tong, M. Chen, and W. Yao, Magnetic proximity effect in a van der Waals moiré superlattice, Phys. Rev. Appl. 12, 024031 (2019).
  25. A. López, L. Colmenárez, M. Peralta, F. Mireles, and E. Medina, Proximity-induced spin-orbit effects in graphene on Au, Phys. Rev. B 99, 085411 (2019).
  26. J. M. Rondinelli, A. S. Eidelson, and N. A. Spaldin, Non-d0 Mn-driven ferroelectricity in antiferromagnetic BaMnO3, Phys. Rev. B 79, 205119 (2009).
  27. S. Satapathy, M. K. Singh, P. Pandit, and P. K. Gupta, Relaxor ferroelectric behavior of BaMnO3 (2H) at room temperature, Appl. Phys. Lett. 100, 042904 (2012).
  28. B. Chamberland, A. Sleight, and J. Weiher, Preparation and characterization of BaMnO3 and SrMnO3 polytypes, J. Solid State Chem. 1, 506 (1970).
  29. G. Gökoğlu and H. Yıldırım, Electronic structure and surface properties of cubic perovskite oxide BaMnO3, Comput. Mater. Sci. 50, 1212 (2011).
  30. R. Søndenå, S. Stølen, P. Ravindran, T. Grande, and N. L. Allan, Corner- versus face-sharing octahedra in AMnO3 perovskites (A = Ca, Sr, and Ba), Phys. Rev. B 75, 184105 (2007).
  31. J. B. Goodenough and M. Longo, 3.1.7 Data: Crystallographic properties of compounds with perovskite or perovskite-related structure, in Landolt-Börnstein - Group III Condensed Matter (Springer-Verlag, Berlin/Heidelberg, 1970), pp. 148–161.
  32. G. Kresse and J. Furthmüller, Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set, Phys. Rev. B 54, 11169 (1996).
  33. G. Kresse and D. Joubert, From ultrasoft pseudopotentials to the projector augmented-wave method, Phys. Rev. B 59, 1758 (1999).
  34. D. M. Ceperley and B. J. Alder, Ground state of the electron gas by a stochastic method, Phys. Rev. Lett. 45, 566 (1980).
  35. J. P. Perdew and A. Zunger, Self-interaction correction to density-functional approximations for many-electron systems, Phys. Rev. B 23, 5048 (1981).
  36. S. L. Dudarev, G. A. Botton, S. Y. Savrasov, C. J. Humphreys, and A. P. Sutton, Electron-energy-loss spectra and the structural stability of nickel oxide: An LSDA+U study, Phys. Rev. B 57, 1505 (1998).
  37. P. E. Blöchl, Projector augmented-wave method, Phys. Rev. B 50, 17953 (1994).
  38. P. E. Blöchl, O. Jepsen, and O. K. Andersen, Improved tetrahedron method for Brillouin-zone integrations, Phys. Rev. B 49, 16223 (1994).
  39. We use εKTO=220ε0 [46], ε0 being the free-space permittivity, εBMO=22ε0 [47], ɛgBMO=1.08eV [29], Δ=−0.145eV, and aKTO=3.988 Å for the calculations.
  40. Z. Hu, W. Xu, C. Chen, Y. Wen, and L. Liu, First‐principles calculations of the structure stability and mechanical properties of LiFeAs and NaFeAs under pressure, Adv. Mater. Sci. Eng. 2018, 3219685 (2018).
  41. K. Momma and F. Izumi, VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data, J. Appl. Crystallogr. 44, 1272 (2011).
  42. J. Chakraborty, Interplay of covalency, spin-orbit coupling, and geometric frustration in the d3.5 system Ba3LiIr2O9, Phys. Rev. B 97, 235147 (2018).
  43. S. Rooj, J. Chakraborty, and N. Ganguli, Hexagonal MnTe with antiferromagnetic spin splitting and hidden Rashba-Dresselhaus interaction for antiferromagnetic spintronics, Adv. Phys. Res. 3, 2300050 (2024).
  44. H. Zhang, X. Yan, X. Zhang, S. Wang, C. Xiong, H. Zhang, S. Qi, J. Zhang, F. Han, N. Wu, B. Liu, Y. Chen, B. Shen, and J. Sun, Unusual electric and optical tuning of KTaO3-based two-dimensional electron gases with 5d orbitals, ACS Nano 13, 609 (2019).
  45. W.-t. Guo, Z. Huang, and J.-m. Zhang, Rashba spin-splitting driven inverse spin Hall effect in MnBi2Te4, Commun. Phys. 8, 1 (2025).
  46. M. D. Agrawal and K. V. Rao, Dielectric properties and optical absorption of KTaO3 single crystals and KTaO3.NaTaO mixed crystals, J. Phys. C: Solid State Phys. 3, 1120 (1970).
  47. L. Hughes, A. Roy, N. Yadav, C. Downing, M. P. Browne, J. K. Vij, and V. Nicolosi, Dielectric engineering of perovskite BaMnO3 for the rapid heterogeneous nucleation of Pt nanoparticles for catalytic applications, Adv. Funct. Mater. 34, 2402103 (2024).

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Phys. Rev. B 114, 014422– Published 23 July, 2026
  • Received 30 June 2025
  • Revised 1 June 2026
  • Accepted 7 July 2026
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