Electronic structure analysis of UIr using soft x-ray photoemission spectroscopy and band calculation

被引：9

作者：

Yamagami, H. ^{[1
]}

Ohkochi, T. ^{[1
]}

Fujimori, S-I ^{[1
]}

Toshimitsu, T. ^{[1
]}

Yasui, A. ^{[1
]}

Okane, T. ^{[1
]}

Saitoh, Y. ^{[1
]}

Fujimori, A. ^{[1
]}

Haga, Y. ^{[1
]}

Yamamoto, E. ^{[1
]}

Ikeda, S. ^{[1
]}

Onuki, Y. ^{[1
]}

机构：

[1] Kyoto Sangyo Univ, Dept Phys, Kyoto 6038555, Japan

来源：

INTERNATIONAL CONFERENCE ON MAGNETISM (ICM 2009) | 2010年 / 200卷

关键词：

PRESSURE-INDUCED SUPERCONDUCTIVITY;

D O I：

10.1088/1742-6596/200/1/012229

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Uranium ferromagnet UIr is well-known to a pressure-induced superconductor without an inversion symmetry. In order to clarify the U 5f states of ferromagnetically-ordered UIr below T-c similar to 46 K and at ambient pressure, we observed 5f-sensitive soft X-ray photoemission spectra (SXPES), and calculated the band structure by a relativistic LAPW method in a local-spin density approximation. The temperature-dependent angle-integrated SXPES near the Fermi energy show a definite energy-shift of the band structures below and above T-c. The exchange splitting of the 5f bands seems to be consistent with an itinerant band picture like Stoner model. Furthermore the angle-resolved SXPES are compared with the theoretical band structure to investigate the relationship between the band shift and the magnetism.

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页数：4

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