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- W2044368439 abstract "Previously obtained data on the spin glass transition temperature Tg and Curie-Weiss temperature θ for CdxHgyMnzTe alloys have been analyzed in terms of a combination of superexchange and Bloembergen-Rowland (BR) exchange. The superexchange analysis has been made initially for samples having energy gap Eg⩾1.5 eV. From the exchange parameters obtained, values of the superexchange contribution Tgs for alloys with Eg⩽1.5 eV have been calculated and the BR contribution obtained as Tgb = Tg - Tgs. The resulting values of Tgb have been analyzed in terms of both the BR and Abrikosov equations and good agreement obtained in the former case with other band data. The analysis shows that BR becomes the major component of the exchange when Eg⩽0.45 eV. Using the exchange parameters obtained from Tg, values of θ are predicted and good agreement obtained between prediction and experimental values." @default.
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- W2044368439 date "1987-11-01" @default.
- W2044368439 modified "2023-09-25" @default.
- W2044368439 title "Exchange mechanisms in CdxHgyMnzTe alloys" @default.
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- W2044368439 doi "https://doi.org/10.1016/0304-8853(87)90258-7" @default.
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