Exchange mechanisms in diluted magnetic semiconductors

B. E. Larson; K. C. Hass; H. Ehrenreich; A. E. Carlsson

doi:10.1016/0038-1098(85)90399-0

Exchange mechanisms in diluted magnetic semiconductors

B. E. Larson, K. C. Hass, H. Ehrenreich, A. E. Carlsson

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Abstract

The hierarchy of Mn-Mn exchange mechanisms in Cd_1-xMn_xTe and related alloys is calculated perturbatively using a generalized Anderson Hamiltonian. Realistic parameters are obtained from experimental band structure information and local spin density ASW calculations. Super-exchange is found to dominate at nearest and next-neighbor distances, in agreement with the observed antiferromagnetic coupling. Calculated Cd_1-xMn_xTe exchange constants and predicted chemical trends are in good agreement with experiment and with ASW total energy calculations.

Original language	English
Pages (from-to)	347-350
Number of pages	4
Journal	Solid State Communications
Volume	56
Issue number	4
DOIs	https://doi.org/10.1016/0038-1098(85)90399-0
State	Published - Oct 1985

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title = "Exchange mechanisms in diluted magnetic semiconductors",

abstract = "The hierarchy of Mn-Mn exchange mechanisms in Cd1-xMnxTe and related alloys is calculated perturbatively using a generalized Anderson Hamiltonian. Realistic parameters are obtained from experimental band structure information and local spin density ASW calculations. Super-exchange is found to dominate at nearest and next-neighbor distances, in agreement with the observed antiferromagnetic coupling. Calculated Cd1-xMnxTe exchange constants and predicted chemical trends are in good agreement with experiment and with ASW total energy calculations.",

author = "Larson, {B. E.} and Hass, {K. C.} and H. Ehrenreich and Carlsson, {A. E.}",

year = "1985",

month = oct,

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pages = "347--350",

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T1 - Exchange mechanisms in diluted magnetic semiconductors

AU - Larson, B. E.

AU - Hass, K. C.

AU - Ehrenreich, H.

AU - Carlsson, A. E.

PY - 1985/10

Y1 - 1985/10

N2 - The hierarchy of Mn-Mn exchange mechanisms in Cd1-xMnxTe and related alloys is calculated perturbatively using a generalized Anderson Hamiltonian. Realistic parameters are obtained from experimental band structure information and local spin density ASW calculations. Super-exchange is found to dominate at nearest and next-neighbor distances, in agreement with the observed antiferromagnetic coupling. Calculated Cd1-xMnxTe exchange constants and predicted chemical trends are in good agreement with experiment and with ASW total energy calculations.

AB - The hierarchy of Mn-Mn exchange mechanisms in Cd1-xMnxTe and related alloys is calculated perturbatively using a generalized Anderson Hamiltonian. Realistic parameters are obtained from experimental band structure information and local spin density ASW calculations. Super-exchange is found to dominate at nearest and next-neighbor distances, in agreement with the observed antiferromagnetic coupling. Calculated Cd1-xMnxTe exchange constants and predicted chemical trends are in good agreement with experiment and with ASW total energy calculations.

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U2 - 10.1016/0038-1098(85)90399-0

DO - 10.1016/0038-1098(85)90399-0

M3 - Article

AN - SCOPUS:0022146909

SN - 0038-1098

VL - 56

SP - 347

EP - 350

JO - Solid State Communications

JF - Solid State Communications

IS - 4

ER -

Exchange mechanisms in diluted magnetic semiconductors

Abstract

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