Journalartikel

Jahr der Veröffentlichung: 2013

Seiten: 732-735

Zeitschrift: physica status solidi (b) – basic solid state physics

Bandnummer: 250

Heftnummer: 4

ISSN: 0370-1972

eISSN: 1521-3951

DOI Link: https://doi.org/10.1002/pssb.201200505

Verlag: Wiley

Abstract: 
Pressure dependent magnetotransport measurements have been carried out on a chlorine-doped Zn(0.9)8Mn(0.02)Se epilayer with a carrier concentration below the critical concentration of the metal-insulator transition (MIT). The large positive magnetoresistance at low temperatures can qualitatively be related to the giant Zeeman splitting of the donor states. The increase of the resistivity and the magnetoresistance effects under hydrostatic pressure is mainly related to the increase of the electron effective mass in the conduction band. This increase of the effective mass is the reason for an increase of the donor depth and a corresponding shrinkage of the donor wavefunction, which in turn leads to a narrowing of the impurity band (IB). The splitting of this narrow IB, which results from an applied pressure, is the main reason for the enhancement of the large positive magnetoresistance effects under pressure. (C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Harvard-Zitierstil: Petznick, S., Hetterich, M. and Klar, P. (2013) Magnetotransport in Zn_1-xMn_xSe:Cl under hydrostatic pressure, physica status solidi (b) – basic solid state physics, 250(4), pp. 732-735. https://doi.org/10.1002/pssb.201200505

APA-Zitierstil: Petznick, S., Hetterich, M., & Klar, P. (2013). Magnetotransport in Zn_1-xMn_xSe:Cl under hydrostatic pressure. physica status solidi (b) – basic solid state physics. 250(4), 732-735. https://doi.org/10.1002/pssb.201200505