ANGLE-RESOLVED PHOTOEMISSION SPECTROSCOPY AND MAGNETIC CIRCULAR DICHROISM IN Fe-INTERCALATEDTiS2

A. Yamasaki, S. Imada, A. Sekiyama, S. Suga, T. Matsushita, T. Muro, Y. Saitoh, H. Negishi and M. Sasaki
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A. Yamasaki: Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
S. Imada: Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
A. Sekiyama: Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
S. Suga: Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
T. Matsushita: Japan Synchrotron Radiation Research Institute, SPring-8, Mikazuki, Hyogo 679-5148, Japan
T. Muro: Japan Synchrotron Radiation Research Institute, SPring-8, Mikazuki, Hyogo 679-5148, Japan
Y. Saitoh: Japan Atomic Energy Research Institute, SPring-8, Mikazuki, Hyogo 679-5148, Japan
H. Negishi: Graduate School of Advanced Sciences of Matter, Hiroshima University, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
M. Sasaki: Graduate School of Advanced Sciences of Matter, Hiroshima University, Kagamiyama, Higashi-Hiroshima 739-8526, Japan

Surface Review and Letters (SRL), 2002, vol. 09, issue 02, 961-966

Abstract: In order to directly investigate the energy band dispersion and the origin of the magnetic moment in intercalation compoundsFexTiS2, we have measured the angle-resolved photoemission (ARPES) spectrum and the magnetic circular dichroism (MCD) of the soft X-ray core absorption (XAS) spectra using a synchrotron light source. The energy band dispersion is clearly observed in the Ti2p3/2(eg)on-resonance ARPES spectra. In the Ti2pXAS spectra the MCD is clearly seen, suggesting that a magnetic moment is induced on the Ti atom through the hybridization with the Fe3dorbitals. We quantitatively estimate the orbital and spin magnetic moments of the Fe and Ti atoms by using the magneto-optical sum rules.

Date: 2002
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DOI: 10.1142/S0218625X02003160

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