<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Mn</mi></mrow><mrow><mn>2</mn></mrow></msup></mrow></math></span>+-F-<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Fe</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></mrow></math></span> Exchange Interactions

G. K. Wertheim; H. J. Guggenheim; M. Butler; V. Jaccarino

doi:10.1103/PhysRev.178.804

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${Mn}^{2}$ +-F- ${Fe}^{2 +}$ Exchange Interactions

G. K. Wertheim and H. J. Guggenheim

M. Butler^* and V. Jaccarino^*

Bell Telephone Laboratories, Murray Hill, New Jersey 07974

Department of Physics, University of California, Santa Barbara, California 93106

^*Supported in part by the National Science Foundation.

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Phys. Rev. 178, 804 – Published 10 February, 1969

DOI: https://doi.org/10.1103/PhysRev.178.804

Abstract

The Néel temperature in ${Mn}_{1 - x} {Fe}_{x} F_{2}$ has a parabolic dependence on concentration with a maximum near $x = 0.75$ , indicating that the effective exchange energy for unlike ions is significantly greater than the geometric mean of those for manganese and iron. Comparison with NMR results suggests that this is due to an enhanced near-neighbor ferromagnetic exchange between unlike ions.

References (9)

G. K. Wertheim, H. J. Guggenheim, and D. N. E. Buchanan, Phys. Rev. Letters 20, 1158 (1968)
G. E. Bacon, R. Street, and R. H. Tredgold, Proc. Roy. Soc. 217, 252 (1953)
T. Hashimoto, J. Phys. Soc. Japan 18, 1140 (1963)
C. G. Windsor and R. W. H. Stevenson, Proc. Phys. Soc. (London) 87, 501 (1966)
J. S. Pickart, M. F. Collins, and C. G. Windsor, J. Appl. Phys. 37, 1054 (1966)
D. T. Teaney, V. L. Moruzzi, and B. E. Argyle, J. Appl. Phys. 37, 1122 (1966)
G. K. Wertheim, H. J. Guggenheim, H. J. Williams, and D. N. E. Buchanan, Phys. Rev. 158, 446 (1967)
G. G. Low, A. Okazaki, R. W. H. Stevenson, and K. C. Turberfield, J. Appl. Phys. 35, 998 (1964)
M. Butler, N. Kaplan, V. Jaccarino, and H. J. Guggenheim (unpublished)

[c1] G. K. Wertheim, H. J. Guggenheim, and D. N. E. Buchanan, Phys. Rev. Letters 20, 1158 (1968)

[c2] G. E. Bacon, R. Street, and R. H. Tredgold, Proc. Roy. Soc. 217, 252 (1953)

[c3] T. Hashimoto, J. Phys. Soc. Japan 18, 1140 (1963)

[c4] C. G. Windsor and R. W. H. Stevenson, Proc. Phys. Soc. (London) 87, 501 (1966)

[c5] J. S. Pickart, M. F. Collins, and C. G. Windsor, J. Appl. Phys. 37, 1054 (1966)

[c6] D. T. Teaney, V. L. Moruzzi, and B. E. Argyle, J. Appl. Phys. 37, 1122 (1966)

[c7] G. K. Wertheim, H. J. Guggenheim, H. J. Williams, and D. N. E. Buchanan, Phys. Rev. 158, 446 (1967)

[c8] G. G. Low, A. Okazaki, R. W. H. Stevenson, and K. C. Turberfield, J. Appl. Phys. 35, 998 (1964)

[c9] M. Butler, N. Kaplan, V. Jaccarino, and H. J. Guggenheim (unpublished)

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${Mn}^{2}$ +-F- ${Fe}^{2 +}$ Exchange Interactions

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Mn2+-F-Fe2+ Exchange Interactions

Abstract

References (9)

${Mn}^{2}$ +-F- ${Fe}^{2 +}$ Exchange Interactions