https://doi.org/10.1140/epjb/s10051-025-00888-4
Regular Article - Solid State and Materials
Spin-dependent resonant tunneling in CdTe/Cd1−xMnxTe nanostructures: effect of polaronic mass
1
Department of Physics, Karpagam Academy of Higher Education, Coimbatore, India
2
Department of Chemistry, K. Ramakrishnan College of Engineering (Autonomous), Affiliated to Anna University, Samayapuram, 621112, Trichy, Tamil Nadu, India
3
Instituto de Alta Investigación, Universidad de Tarapacá, 1000000, Arica, Chile
4
School of Chemical Engineering, Yeungnam University, Gyeongsan, Republic of Korea
5
Department of Physics, Alagappa Government Arts College, Karaikudi, India
6
Department of Chemistry, Karpagam Academy of Higher Education, 641 021, Coimbatore, India
7
Department of Physics (S&H), Velammal Institute of Technology, Panchetti, 601204, Chennai, Tamil Nadu, India
8
Department of Biochemistry, Saveetha Medical College, Chennai, India
9
Saveetha Institute of Medical and Technical Sciences, Chennai, India
10
Department of Physics, St. Joseph’s College of Engineering, 600119, Chennai, India
a
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Received:
12
November
2024
Accepted:
3
February
2025
Published online:
6
March
2025
Abstract
Effect of polaronic mass on the resonant tunneling of electrons in CdTe/Cd1−xMnxTe double-barrier heterostructure is investigated. The well-known transfer matrix method is employed to calculate the barrier transparency. One can obtain a high degree of spin-polarization at a high concentration of Mn in the barrier region. The barrier transparency peak becomes narrow as the concentration of Mn increases from 10 to 20%. The effect of polaronic mass shifts the transparency peak to the lower value on the energy scale. One can obtain a high degree of spin-polarization at a high concentration of Mn in the barrier region. The account of the polaronic mass shifts the resonance energy of spin-polarization to the lower value and it enhances the spin-polarization. The spin-down electrons spend more time in the heterostructure than the spin-up electrons. The dwell time changes about 1000 times as the concentration of the barrier changes.
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“Santhamoorthy Madhappan” has an equal contribution as the first author.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
