Induced Hyperfine Field in Doped Chalcopyrite Compounds Cu(In1-xAx)S2 (A = V and Cr)

M. Shahjahan, Raisul Islam
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Abstract

Hyperfine field and electronic states of doped chalcopyrite compounds Cu(In1-xAx)S2 with A = V and Cr are calculated by Korringa- Kohn-Rostoker Green’s function method, where x denotes the concentration of A atoms. The V and Cr doped compounds are ferromagnetically stable in terms of energy minimization and their electronic states are half metallic. The hyperfine fields in the stable ferromagnetic (FM) state are calculated with their valence and core contributions. In addition, site preference local magnetic moments are calculated for the FM and disordered spin moment (DSM) states. Density of states (DOS) exhibit the spintronic property of half metallicity. The local core and valence field polarizations are found in the doped chalcopyrite systems, where the s-orbital hybridization with the local d-shell is explained in terms of some exchange mechanisms. Dhaka Univ. J. Sci. 69(3): 149-153, 2022 (June)
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铜(In1-xAx)S2 (A = V和Cr)掺杂黄铜矿化合物的诱导超细场
采用Korringa- Kohn-Rostoker Green函数法计算了A = V和Cr掺杂黄铜矿化合物Cu(In1-xAx)S2的超细场态和电子态,其中x为A原子的浓度。V和Cr掺杂的化合物在能量最小化方面是铁磁稳定的,它们的电子态是半金属的。计算了稳定铁磁(FM)状态下的超精细场,计算了它们的价态和磁心贡献。此外,还计算了调频态和无序自旋态的位置偏好局域磁矩。态密度(DOS)表现出半金属丰度的自旋电子性质。在掺杂的黄铜矿体系中发现了局域核和价场极化,其中s轨道与局域d壳层的杂化可以用一些交换机制来解释。达卡大学学报,69(3):149- 153,2022 (6)
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