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Correlation effect and magnetic moments in Cr2Te3
- Authors
- Youn, S. J.; Kwon, S. K.; Min, B. I.
- Issue Date
- 1-May-2007
- Publisher
- AMER INST PHYSICS
- Citation
- JOURNAL OF APPLIED PHYSICS, v.101, no.9
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF APPLIED PHYSICS
- Volume
- 101
- Number
- 9
- ISSN
- 0021-8979
1089-7550
- Abstract
- The electronic and magnetic structures of Cr2Te3 have been studied theoretically using the linearized muffin-tin orbitals band method. Experimental photoemission spectra and magnetic moments can be described better when the on-site Coulomb correlation U of Cr 3d electrons is considered using the local spin-density approximation+U method. The proper size of U is found to be U similar to 1.7 eV. The complex magnetic behaviors of Cr2Te3 come from the degeneracy of parallel and antiparallel alignments of Cr-I spin to Cr-II and Cr-III spins. (c) 2007 American Institute of Physics.
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