Published March 2008 | Version v1
Journal article Metadata-only

X-ray magnetic circular dichroism and photoemission study of the diluted ferromagnetic semiconductor Zn1-xCrxTe

Creators

  • 1. Tokyo Univ., Dept. of Physics, Tokyo (Japan)
  • 2. Japan Atomic Energy Agency, Synchrotron Radiation Research Center, Sayo, Hyogo (Japan)
  • 3. Hiroshima Univ., Graduate School of Advanced Sciences of Matter, Higashi-Hiroshima, Hiroshima (JP)
  • 4. National Inst. of Advanced Industrial Science and Technology, Nanoelectronics Research Inst., Tsukuba, Ibaraki (Japan)

Description

We have performed X-ray magnetic circular dichroism (XMCD) and valence-band photoemission studies of the diluted ferromagnetic semiconductor Zn1-xCrxTe. XMCD signals due to ferromagnetism and paramagnetism and/or superparamagnetism were observed at the Cr 2p absorption edge. Comparison with atomic multiplet calculations suggests that the magnetically active component of the Cr ion was divalent under the tetrahedral crystal field with tetragonal distortion along the crystalline a-, b-, and c-axes. In the valence-band spectra, spectral weight near the Fermi level was strongly suppressed, suggesting the importance of Jahn-Teller effect and the strong Coulomb interaction between the Cr 3d electrons. (author)

Additional details

Identifiers

DOI
10.1143/APEX.1.041301;

Publishing Information

Journal Title
Applied Physics Express
Journal Volume
1
Journal Issue
4
Journal Page Range
p. 041301.1-141301.3
ISSN
1882-0778

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
39117190
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ABSORPTION SPECTRA; CHROMIUM COMPOUNDS; CHROMIUM IONS; FERMI LEVEL; FERROMAGNETISM; JAHN-TELLER EFFECT; KEK PHOTON FACTORY; MAGNETIC CIRCULAR DICHROISM; MAGNETIC SEMICONDUCTORS; PARAMAGNETISM; PHOTOEMISSION; SPRING-8 STORAGE RING; SYNCHROTRON RADIATION; TELLURIDES; TEMPERATURE DEPENDENCE; THIN FILMS; X-RAY SPECTROSCOPY; ZINC COMPOUNDS
Descriptors DEC
BREMSSTRAHLUNG; CHALCOGENIDES; CHARGED PARTICLES; DICHROISM; ELECTROMAGNETIC RADIATION; EMISSION; ENERGY LEVELS; FILMS; IONS; MAGNETISM; MATERIALS; RADIATION SOURCES; RADIATIONS; SECONDARY EMISSION; SEMICONDUCTOR MATERIALS; SPECTRA; SPECTROSCOPY; STORAGE RINGS; SYNCHROTRON RADIATION SOURCES; TELLURIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
Available from doi: http://dx.doi.org/10.1143/APEX.1.041301; 21 refs., 4 figs.