期刊
PHYSICAL REVIEW LETTERS
卷 102, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.026403
关键词
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资金
- DFG [SFB 463, TP B4, B14, B16, 444 USA 111/9/06]
- Science and Technology Center in Ukraine (STCU) [4930]
- Director, Office of Science, Office of Basic Energy Sciences of the U. S. Department of Energy [DE-AC02-05CH11231, DE-FG0203ER46066]
- US NSF [DMR 0706657]
The mixed-valent compound EuNi2P2 was studied by photoemission. Observed splittings and dispersions of the Eu 4f(6) final state close to energy crossings of the Eu 4f and Ni 3d states are explained in terms of hybridization by a momentum and energy dependence of the electron hopping matrix element. These data obtained for a system with more than one 4f electron (hole) show that dispersions and hybridization gaps related to Kondo and heavy-fermion behavior can be found in other rare-earth-metal compounds apart from Ce and Yb-based ones.
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