X-ray photoemission and magnetometric studies of valence changes in Ce(Cu1-xNix)4Ga

被引：10

作者：

Tolinski, T. ^{[1
]}

Chelkowska, G. ^{[2
]}

Falkowski, M. ^{[1
]}

Kowalczyk, A. ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Mol Phys, PL-60179 Poznan, Poland

[2] Silesian Univ, Inst Phys, PL-40007 Katowice, Poland

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2011年 / 323卷 / 12期

关键词：

Rare earth compound; X-ray photoemission; Magnetic susceptibility; Valence fluctuation; Heavy fermion; ELECTRONIC-STRUCTURE; CECU4GA; CE; HEAT; GA;

D O I：

10.1016/j.jmmm.2011.01.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The compounds Ce(Cu1-xNix)(4)Ga crystallize in the hexagonal CaCu5-type structure for the whole doping range 0 <= x <= 1. The border compounds CeCu4Ga and CeNi4Ga represent a heavy fermion and fluctuating valence systems, respectively. We report on the studies of the valence evolution in Ce(Cu1-xNix)(4)Ga employing the X-ray photoemission spectroscopy (XPS) and magnetic susceptibility measurements. The photoemission of the Ce 3d peaks shows a gradual decrease of the occupation of the f states with Ni content. Simultaneously, the hybridization strength and the low temperature magnetic susceptibility are reduced. Within the valence band spectrum a transition from the dominance of the Cu 3d to the dominance of the Ni 3d states is well visible with the traces of the Ce 4f(1) states for up to x=0.5. (C) 2011 Published by Elsevier B.V.

引用

页码：1678 / 1681

页数：4

共 50 条

[21] Localized and mixed valence state of Ce 4 f in superconducting and ferromagnetic CeO1-xFxBiS2 revealed by x-ray absorption and photoemission spectroscopy
Sugimoto, T.
Ootsuki, D.
Paris, E.
Iadecola, A.
Salome, M.
Schwier, E. F.
Iwasawa, H.
Shimada, K.
Asano, T.
Higashinaka, R.
Matsuda, T. D.
Aoki, Y.
Saini, N. L.
Mizokawa, T.
PHYSICAL REVIEW B, 2016, 94 (08)
[22] PRESSURE STUDIES ON THE MAGNETIC PHASE-TRANSITION OF THE HEAVY-FERMION COMPOUND CE(CU1-XNIX)2GE2
SPARN, G
BEYERMANN, WP
CANFIELD, PC
FISK, Z
THOMPSON, JD
STEGLICH, F
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1993, 7 (1-3): : 54 - 57
[23] X-RAY PHOTOEMISSION STUDY OF GD, TB AND DY 4F AND VALENCE BANDS
MCFEELY, FR
KOWALCZYK, SP
LEY, L
SHIRLEY, DA
PHYSICS LETTERS A, 1973, A 45 (03) : 227 - 228
[24] X-RAY PHOTOEMISSION STUDIES OF 3D METALS FROM MN TO CU
HUFNER, S
WERTHEIM, GK
PHYSICS LETTERS A, 1974, A 47 (05) : 349 - 350
[25] X-RAY STUDIES OF ANNEALING ON A COLD WORKED CU-GA ALLOY
VASUDEVAN, R
METALLURGICAL TRANSACTIONS, 1971, 2 (01): : 336 - +
[26] X-RAY PHOTOEMISSION-STUDY OF PR VALENCE IN PRBA2CU3O7
ISHII, H
JOKURA, K
KATAURA, H
HANYU, T
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1995, 34 (7A): : L814 - L816
[27] Intermediate valence in Yb compounds probed by 4 f photoemission and resonant inelastic x-ray scattering
Kummer, K.
Kucherenko, Yu.
Danzenbaecher, S.
Krellner, C.
Geibel, C.
Holder, M. G.
Bekenov, L. V.
Muro, T.
Kato, Y.
Kinoshita, T.
Huotari, S.
Simonelli, L.
Molodtsov, S. L.
Laubschat, C.
Vyalikh, D. V.
PHYSICAL REVIEW B, 2011, 84 (24):
[28] X-RAY PHOTOEMISSION SPECTRUM OF THE 3-4 LAYER COMPOUND GATE IN THE REGION OF THE VALENCE BANDS
ANTONANGELI, F
BALZAROTTI, A
DONI, E
GIRLANDA, R
GRASSO, V
PIACENTINI, M
PHYSICA B & C, 1981, 105 (1-3): : 59 - 64
[29] INSITU X-RAY PHOTOEMISSION-STUDIES OF THE OXIDATION OF Y-BA-CU FILMS
PRICE, RJ
JACKMAN, RB
FOORD, JS
JOURNAL OF APPLIED PHYSICS, 1988, 64 (12) : 6799 - 6802
[30] Valence States in CeVO4 and Ce0.5Bi0.5VO4 Probed by Density Functional Theory Calculations and X-ray Photoemission Spectroscopy
Allen, J. P.
Galea, N. M.
Watson, G. W.
Palgrave, R. G.
Kahk, J. M.
Payne, D. J.
Robinson, M. D. M.
Field, G.
Regoutz, A.
Egdell, R. G.
JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (44): : 25330 - 25339

← 1 2 3 4 5 →