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- W2089892284 abstract "Half-metallic ferromagnets are promising candidates for use in spintronic devices. In order to investigate the complex magnetism of such systems, we have studied the magnetic interactions in zinc-blende MnX (X=N,P,As,Bi,Sb) systems as a function of volume by ab initio density functional calculations. The calculated Heisenberg pair-exchange parameters show a strong volume dependence resulting in the transition from a metallic to a half-metallic behavior for certain systems. As a result, in MnAs, the calculated Curie temperatures, obtained from Monte Carlo simulations using ab initio exchange parameters and a classical Heisenberg Hamiltonian, increase with an increase in volume. Calculations of self-consistent noncollinear spin configurations indicate that spins deviate strongly from collinear ordering for low volumes whereas they align in a collinear ferromagnetic fashion for high volumes." @default.
- W2089892284 created "2016-06-24" @default.
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- W2089892284 date "2008-01-31" @default.
- W2089892284 modified "2023-10-18" @default.
- W2089892284 title "Volume dependent magnetism in zinc-blende MnX (X=N,P,As,Sb,Bi) compounds" @default.
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- W2089892284 doi "https://doi.org/10.1063/1.2836679" @default.
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