Paper Title:
Magnetic Properties of New Diluted Magnetic Semiconductors Pb1-X-YMgXYbYTe
  Abstract

We have studied the magnetic susceptibility, magnetization and electron paramagnetic resonance (EPR) in the diluted magnetic semiconductor Pb1-x-yMgxYbyTe. The magnetic susceptibility of this system is a superposition of the matrix diamagnetism, the paramagnetic contribution of electrons localized in the ytterbium band, and the Curie-Weiss paramagnetism provided by Yb3+ ions. The concentration of Yb3+ ions monotonically increases with the ytterbium content, while a significant fraction of ytterbium ions remains in a nonmagnetic Yb2+ state. A pronounced hyperfine structure was revealed in the EPR spectra. It was ascribed to the interaction between the electron magnetic moment of an unfilled electron shell of Yb3+ ions and nuclear magnetic moment of the 173Yb isotope. The estimated values of the effective g-factor (g1.997 0.002) and the hyperfine-interaction constant (173A=0,56 cm-1) were found to be almost independent of both alloy composition and temperature.

  Info
Periodical
Solid State Phenomena (Volumes 168-169)
Main Theme
Edited by
V. Ustinov
Pages
376-379
DOI
10.4028/www.scientific.net/SSP.168-169.376
Citation
E.A. Zvereva, O.A. Savelieva, S. Ibragimov, Y. Titov, E.I. Slynko, V. Slyn’ko, "Magnetic Properties of New Diluted Magnetic Semiconductors Pb1-X-YMgXYbYTe", Solid State Phenomena, Vols. 168-169, pp. 376-379, 2011
Online since
December 2010
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