Magnetization and spin-flip Raman scattering in Cd 1-xCr xSe and Cd 1-xV xSe

Document Type

Article

Publication Date

9-28-2012

Abstract

Spin-flip Raman scattering (SFRS) from donor-bound electrons in II-VI diluted magnetic semiconductors (DMSs) containing 3d transition-metal ions, e.g., Cd 1-xCr xSe and Cd 1-xV xSe, allows one to explore the exchange interaction between the conduction band or donor electrons with the 3d magnetic ions, which is the so-called s-d exchange interaction. The s-d exchange energy, being the SFRS Raman shift after subtracting the intrinsic Zeeman splitting characterized by g *=0.52 for CdSe, together with the magnetization measurements of those DMSs, allow one to deduce the s-d exchange constant N 0α. For Cd 1-xCr xSe and Cd 1-xV xSe, the N 0α values are 210±13 and 269±10 meV, respectively. © 2012 American Physical Society.

Publication Title

Physical Review B - Condensed Matter and Materials Physics

Volume

86

Issue

11

Digital Object Identifier (DOI)

10.1103/PhysRevB.86.115213

ISSN

10980121

E-ISSN

1550235X

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