Open AccessElectron g-factor in coupled quantum wells CdTe and CdMnTe
Author(s) -
M. M. Afanasiev,
N. V. Kozyrev,
E. Kirstein,
V. K. Kalevich,
E. A. Zhukov,
В. Н. Манцевич,
Igor Krivenko,
G. Karczewski,
D. R. Yakovlev,
Yu. G. Kusraev,
М. Bayer
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1400/6/066023
Subject(s) - condensed matter physics , electron , quantum well , cadmium telluride photovoltaics , filling factor , chemistry , ion , exchange interaction , materials science , ferromagnetism , physics , optics , optoelectronics , laser , quantum mechanics , organic chemistry
In tunnel-coupled quantum wells (QWs) CdTe (20 nm wide) and CdMnTe (8 nm wide) separated by Cd 0.88 Mg 0.12 Te barrier with a thickness of L B = 5, 7, 9, and 11 monolayers (MLs), the dependence of electron g -factor on the barrier thickness and temperature is investi-gated by means of the pump-probe Kerr rotation technique. The renormalization of the electron g -factor occurs due to the s–d exchange interaction of electrons with manganese ions in a magnetic QW. The most change of the electron g -factor value Δ g = 0.25 is registered at the least barrier width of 5 MLs and temperature T = 5 K. In this case, the penetration of the electron wave function from the nonmagnetic QW into the magnetic one is estimated to be 0.6%.