A COMPREHENSIVE STUDY OF THE ELECTRONIC STRUCTURE OF BOROCARBIDES BY XPS TECHNIQUE-Reference-Cited by-同舟云学术

A COMPREHENSIVE STUDY OF THE ELECTRONIC STRUCTURE OF BOROCARBIDES BY XPS TECHNIQUE

Published:2003-01-30 Issue:03 Volume:17 Page:361-371
ISSN:0217-9792
Container-title:International Journal of Modern Physics B
language:en
Short-container-title:Int. J. Mod. Phys. B

Author:

KUMARI KAMLESH¹,SINGHAL R. K.¹,GARG K. B.¹,HEINONEN M.²,LEIRO J.²,NORBLAD PER³,GUPTA L. C.⁴

Affiliation:

1. Condensed Matter Physics Lab, Department of Physics, University of Rajasthan, Jaipur — 302004, India

2. Applied Materials Science Lab, Department of Physics, University of Turku, 20014 — Turku, Finland

3. Angstrom Lab, Department of Materials Sciences, Uppsala University, P. O. Box 534, SE — 75121 Uppsala, Sweden

4. Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, India

Abstract

Polycrystalline samples of YNi 2 B 2 C and magnetic ErNi 2 B 2 C prepared by arc melting technique have been investigated. Resistivity and magnetization measurements yield superconducting transition temperatures for the two samples of ~ 15 K and ~ 11 K respectively. Core level spectroscopic studies on C (1s), B (1s), Ni (2p), Er (4d) and Y (3d) as well as valence band measurements were performed in order to investigate the electronic structure. The results are interpreted to deduce the valence of Y, Er and Ni. Ni is found to exist in 2+ and y in 3+ valence state. The Er spectra indicate that Er may either be in an intermediate valence state or some minor impurity phase.

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217979203015772

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