DIRECT EVIDENCE OF THE ROLE OF HYBRIDIZATION IN THE X-RAY MAGNETIC CIRCULAR-DICHROISM OF ALPHA-CE

被引：43

作者：

FINAZZI, M

DEGROOT, FMF

DIAS, AM

KIERREN, B

BERTRAN, F

SAINCTAVIT, P

KAPPLER, JP

SCHULTE, O

FELSCH, W

KRILL, G

机构：

[1] UNIV GRONINGEN,9747 AG GRONINGEN,NETHERLANDS

[2] UNIV NANCY 1,PHYS SOLIDE LAB,CNRS,URA DO 155,F-54506 VANDOEUVRE NANCY,FRANCE

[3] UNIV PARIS 06,MINERAL & CRISTALLOG LAB,CNRS,URA 9,F-75252 PARIS 05,FRANCE

[4] UNIV PARIS 07,F-75252 PARIS 05,FRANCE

[5] INST PHYS & CHIM MAT STRASBOURG,ETUDE MAT MET GRP,F-67037 STRASBOURG,FRANCE

[6] UNIV GOTTINGEN,INST PHYS 1,D-37073 GOTTINGEN,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.75.4654

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present an x-ray magnetic circular dichroism (XMCD) study of a [Ce(10 Angstrom)/Fe(30 Angstrom)] multilayer performed at the Ce-M(4,5) absorption edges. In this system the Ce-4f electrons are strongly hybridized with the valence band. XMCD experiments show that they carry an ordered magnetic moment. The differences of the shape of the XMCD signals of a typical gamma-like compound (CeCuSi) and of the Ce/ Fe multilayer highlight the role of hybridization in determining the ground state of cerium atoms in the multilayer, which results in a mixing of J = 5/2 and J = 7/2 coupled states.

引用

页码：4654 / 4657

页数：4

共 21 条

[1] X-RAY CIRCULAR-DICHROISM AND LOCAL MAGNETIC-FIELDS [J].

CARRA, P ;

THOLE, BT ;

ALTARELLI, M ;

WANG, XD .

PHYSICAL REVIEW LETTERS, 1993, 70 (05) :694-697

[2]

Franse J.J.M., 1993, HDB MAGNETIC MAT, V7, P307, DOI [10.1016/S1567-2719(05)80046-0, DOI 10.1016/S1567-2719(05)80046-0]

[3]

FUNGGLE JC, 1983, PHYS REV B, V27, P4637

[4] MAGNETIC CIRCULAR X-RAY DICHROISM IN CE INTERMETALLIC COMPOUNDS [J].

GIORGETTI, C ;

PIZZINI, S ;

DARTYGE, E ;

FONTAINE, A ;

BAUDELET, F ;

BROUDER, C ;

BAUER, P ;

KRILL, G ;

MIRAGLIA, S ;

FRUCHART, D ;

KAPPLER, JP .

PHYSICAL REVIEW B, 1993, 48 (17) :12732-12742

[5] CALCULATIONS OF MAGNETIC-X-RAY DICHROISM IN THE 3D ABSORPTION-SPECTRA OF RARE-EARTH COMPOUNDS [J].

GOEDKOOP, JB ;

THOLE, BT ;

VANDERLAAN, G ;

SAWATZKY, GA ;

DEGROOT, FMF ;

FUGGLE, JC .

PHYSICAL REVIEW B, 1988, 37 (04) :2086-2093

[6]

IANDELLI A, 1987, HDB PHYSICS CHEM RAR, V2, P1

[7] CIRCULAR-DICHROISM IN THE 3D-CORE AND 4D-CORE PHOTOABSORPTION FOR FERROMAGNETIC MIXED VALENT CE COMPOUNDS [J].

JO, T ;

IMADA, S .

PHYSICA SCRIPTA, 1990, 41 (04) :560-564

[8] EFFECT OF VALENCE MIXING ON MULTIPLET STRUCTURE IN CORE PHOTOABSORPTION SPECTRA FOR CE COMPOUNDS [J].

JO, T ;

KOTANI, A .

PHYSICAL REVIEW B, 1988, 38 (01) :830-833

[9] NARROWING DUE TO VALENCE MIXING IN THE 3D CORE LEVEL SPECTRA FOR CE COMPOUNDS [J].

JO, T ;

KOTANI, A .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1988, 57 (07) :2288-2291

[10] A POLARIZED NEUTRON STUDY OF THE MAGNETIC FORM-FACTORS IN CEFE2 [J].

KENNEDY, SJ ;

BROWN, PJ ;

COLES, BR .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1993, 5 (29) :5169-5178

← 1 2 3 →