TEMPERATURE-DEPENDENT CORE PHOTOEMISSION IN CE24CO11

被引：7

作者：

ABBATI, I ^{[1
]}

BRAICOVICH, L ^{[1
]}

MICHELIS, B ^{[1
]}

FASANA, A ^{[1
]}

OLCESE, GL ^{[1
]}

CANEPA, F ^{[1
]}

COSTA, GA ^{[1
]}

机构：

[1] UNIV GENOA,IST CHIM PHYS,I-16126 GENOA,ITALY

来源：

SOLID STATE COMMUNICATIONS | 1985年 / 55卷 / 12期

关键词：

CERIUM COMPOUNDS - COBALT COMPOUNDS - MAGNETIC PROPERTIES - PHOTOEMISSION - SPECTROSCOPY; ELECTRON;

D O I：

10.1016/0038-1098(85)90137-1

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present Ce 3d photoemission results (XPS with Al K alpha ) in the temperature range 100-660 degree K. The mixed valence behavior of Ce is very clear with an increase of the valence at lower temperature. A model analysis (of the Gunnarsson and Schonhammer types) gives the weight of the f//0 configuration equal to 0. 19 at 300 degree K and equal to 0. 23 at 100 degree K. This soft temperature dependence is discussed in connection with the temperature dependence of magnetic properties and with the chemistry of Ce intermetallics.

引用

页码：1081 / 1083

页数：3

共 10 条

[1] ELECTRONIC-STRUCTURE OF CE AND ITS INTERMETALLIC COMPOUNDS [J].

FUGGLE, JC ;

HILLEBRECHT, FU ;

ZOLNIEREK, Z ;

LASSER, R ;

FREIBURG, C ;

GUNNARSSON, O ;

SCHONHAMMER, K .

PHYSICAL REVIEW B, 1983, 27 (12) :7330-7341

[2] ELECTRON SPECTROSCOPIES FOR CE COMPOUNDS IN THE IMPURITY MODEL [J].

GUNNARSSON, O ;

SCHONHAMMER, K .

PHYSICAL REVIEW B, 1983, 28 (08) :4315-4341

[3] TRANSITION TO NONMAGNETIC F-STATES IN CE INTERMETALLIC COMPOUNDS STUDIED BY BREMSSTRAHLUNG ISOCHROMAT SPECTROSCOPY [J].

HILLEBRECHT, FU ;

FUGGLE, JC ;

SAWATZKY, GA ;

CAMPAGNA, M ;

GUNNARSSON, O ;

SCHONHAMMER, K .

PHYSICAL REVIEW B, 1984, 30 (04) :1777-1787

[4] THE ELECTRONIC-STRUCTURE OF CEO2 AND PRO2 [J].

KOELLING, DD ;

BORING, AM ;

WOOD, JH .

SOLID STATE COMMUNICATIONS, 1983, 47 (04) :227-232

[5] ANOMALOUS TEMPERATURE BEHAVIOR OF THE MIXED-VALENCE STATE OF CEPD3 STUDIED BY XPS [J].

KRILL, G ;

ABADLI, L ;

RAVET, MF ;

KAPPLER, JP ;

MEYER, A .

JOURNAL DE PHYSIQUE, 1980, 41 (10) :1121-1125

[6] ABNORMAL MAGNETIC-PROPERTIES OF THE CE24CO11 HEXAGONAL PHASE [J].

OLCESE, GL ;

CANEPA, F ;

COSTA, GA .

SOLID STATE COMMUNICATIONS, 1984, 51 (10) :825-827

[7] THEORY OF A MIXED-VALENT IMPURITY [J].

RAMAKRISHNAN, TV ;

SUR, K .

PHYSICAL REVIEW B, 1982, 26 (04) :1798-1811

[8] SUSCEPTIBILITY OF INTERCONFIGURATION-FLUCTUATION COMPOUNDS [J].

SALES, BC ;

WOHLLEBEN, DK .

PHYSICAL REVIEW LETTERS, 1975, 35 (18) :1240-1244

[9] VALENCE INSTABILITY IN YBPD2SI2 - MAGNETIC-SUSCEPTIBILITY, X-RAY ABSORPTION, AND PHOTOEMISSION-STUDIES [J].

SAMPATHKUMARAN, EV ;

FRANK, KH ;

KALKOWSKI, G ;

KAINDL, G ;

DOMKE, M ;

WORTMANN, G .

PHYSICAL REVIEW B, 1984, 29 (10) :5702-5707

[10] SPECTROSCOPIC EVIDENCE FOR LOCALIZED AND EXTENDED F-SYMMETRY STATES IN CEO2 [J].

WUILLOUD, E ;

DELLEY, B ;

SCHNEIDER, WD ;

BAER, Y .

PHYSICAL REVIEW LETTERS, 1984, 53 (02) :202-205

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