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Nickel‐Based Diluted Magnetic Semiconductor (Zn, Ni)Te
Author(s) -
Ando K.,
Bhattacharjee A.K.,
Tanoue H.,
Takamasu T.,
Imanaka Y.,
Kido G.,
Yasuhira T.,
Matsuda Y.H.,
Miura N.
Publication year - 2002
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200201)229:2<733::aid-pssb733>3.0.co;2-j
Subject(s) - nickel , materials science , magnetic semiconductor , semiconductor , metallurgy , zinc , optoelectronics
The ion implantation method was used to synthesize Zn 1— x Ni x Te films. Magnetic circular dichroism and magnetoabsorption spectra were measured in a sample of nominally x = 0.017. They reveal a substantial Zeeman splitting (up to ≈2.3 meV) of the E 0 transition. The temperature and field dependences of the Zeeman splitting are analyzed within a previously developed theoretical model for the hybridization‐induced sp–d interaction, which includes the orbital degrees of freedom. The results indicate the presence of a static Jahn‐Teller distortion and suggest a valence band sp–d exchange parameter value ≈—1 eV.

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