Magnetoreflectivity study of excitons in (Zn,Co)Se epilayers

X. Liu; A. Petrou; B. T. Jonker; G. A. Prinz; J. J. Krebs; J. Warnock

doi:10.1063/1.102262

Magnetoreflectivity study of excitons in (Zn,Co)Se epilayers

X. Liu
, A. Petrou
, B. T. Jonker
, G. A. Prinz
, J. J. Krebs
, J. Warnock

Physics

SUNY Buffalo
Naval Research Laboratory
IBM

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The reflectivity spectra from single-crystal epilayers of the diluted magnetic semiconductor Zn_1-x Co_x Se(x=0.0076, x=0.0104) have been studied as functions of magnetic field and temperature. The excitonic spin splitting in these crystals saturates for magnetic fields B>5 T, indicating that (Zn,Co)Se is a Brillouin paramagnet, in agreement with magnetization and electron-paramagnetic-resonance studies on the same samples. The magnetoreflectivity data yield a value for the exchange parameter difference N₀ (α-β)=2420±40 meV, significantly larger than the values obtained for either Fe- or Mn-based diluted magnetic semiconductors studied to date.

Original language	English
Pages (from-to)	1023-1025
Number of pages	3
Journal	Applied Physics Letters
Volume	55
Issue number	10
DOIs	https://doi.org/10.1063/1.102262
State	Published - 1989

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10.1063/1.102262

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title = "Magnetoreflectivity study of excitons in (Zn,Co)Se epilayers",

abstract = "The reflectivity spectra from single-crystal epilayers of the diluted magnetic semiconductor Zn1-x Cox Se(x=0.0076, x=0.0104) have been studied as functions of magnetic field and temperature. The excitonic spin splitting in these crystals saturates for magnetic fields B>5 T, indicating that (Zn,Co)Se is a Brillouin paramagnet, in agreement with magnetization and electron-paramagnetic-resonance studies on the same samples. The magnetoreflectivity data yield a value for the exchange parameter difference N0 (α-β)=2420±40 meV, significantly larger than the values obtained for either Fe- or Mn-based diluted magnetic semiconductors studied to date.",

author = "X. Liu and A. Petrou and Jonker, \{B. T.\} and Prinz, \{G. A.\} and Krebs, \{J. J.\} and J. Warnock",

year = "1989",

doi = "10.1063/1.102262",

language = "English",

volume = "55",

pages = "1023--1025",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Magnetoreflectivity study of excitons in (Zn,Co)Se epilayers

AU - Liu, X.

AU - Petrou, A.

AU - Jonker, B. T.

AU - Prinz, G. A.

AU - Krebs, J. J.

AU - Warnock, J.

PY - 1989

Y1 - 1989

N2 - The reflectivity spectra from single-crystal epilayers of the diluted magnetic semiconductor Zn1-x Cox Se(x=0.0076, x=0.0104) have been studied as functions of magnetic field and temperature. The excitonic spin splitting in these crystals saturates for magnetic fields B>5 T, indicating that (Zn,Co)Se is a Brillouin paramagnet, in agreement with magnetization and electron-paramagnetic-resonance studies on the same samples. The magnetoreflectivity data yield a value for the exchange parameter difference N0 (α-β)=2420±40 meV, significantly larger than the values obtained for either Fe- or Mn-based diluted magnetic semiconductors studied to date.

AB - The reflectivity spectra from single-crystal epilayers of the diluted magnetic semiconductor Zn1-x Cox Se(x=0.0076, x=0.0104) have been studied as functions of magnetic field and temperature. The excitonic spin splitting in these crystals saturates for magnetic fields B>5 T, indicating that (Zn,Co)Se is a Brillouin paramagnet, in agreement with magnetization and electron-paramagnetic-resonance studies on the same samples. The magnetoreflectivity data yield a value for the exchange parameter difference N0 (α-β)=2420±40 meV, significantly larger than the values obtained for either Fe- or Mn-based diluted magnetic semiconductors studied to date.

UR - https://www.scopus.com/pages/publications/2842565281

U2 - 10.1063/1.102262

DO - 10.1063/1.102262

M3 - Article

AN - SCOPUS:2842565281

SN - 0003-6951

VL - 55

SP - 1023

EP - 1025

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 10

ER -

Magnetoreflectivity study of excitons in (Zn,Co)Se epilayers

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