Direct observation of orbital magnetism in cubic solids -: art. no. 077205

被引：35

作者：

Brewer, WD

Scherz, A

Sorg, C

Wende, H

Baberschke, K

Bencok, P

Frota-Pessôa, S

机构：

[1] Free Univ Berlin, Inst Expt Phys, D-14195 Berlin, Germany

[2] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[3] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.93.077205

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present x-ray magnetic circular dichroism determinations of the orbital/spin magnetic moment ratios of dilute 3d-series impurities in Au (and Cu) host matrices. This is the first direct measurement of considerable orbital moments in cubic symmetry for a localized impurity in a bulk metal host. It is shown that the unquenching of orbital magnetism depends on a delicate balance of hybridization effects between the local impurity with the host and the filling of the 3d states of the impurity. The results are accompanied by ab initio calculations that support our experimental findings.

引用

收藏

页码：077205 / 1

页数：4

相关论文

共 21 条

[1] NUCLEAR ORIENTATION OF CO-60 IN DILUTE AUCO [J].

BOYSEN, J ;

BREWER, WD ;

FLOUQUET, J .

SOLID STATE COMMUNICATIONS, 1973, 12 (11) :1095-1098

[2] Orbital magnetism of transition-metal adatoms and clusters on the Ag and Au(001) surfaces [J].

Cabria, I ;

Nonas, B ;

Zeller, R ;

Dederichs, PH .

PHYSICAL REVIEW B, 2002, 65 (05) :1-9

[3] 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

[4] EXPERIMENTAL CONFIRMATION OF THE X-RAY MAGNETIC CIRCULAR-DICHROISM SUM-RULES FOR IRON AND COBALT [J].

CHEN, CT ;

IDZERDA, YU ;

LIN, HJ ;

SMITH, NV ;

MEIGS, G ;

CHABAN, E ;

HO, GH ;

PELLEGRIN, E ;

SETTE, F .

PHYSICAL REVIEW LETTERS, 1995, 75 (01) :152-155

[5] FULLY RELATIVISTIC CALCULATION OF THE HYPERFINE FIELDS OF 5D-IMPURITY ATOMS IN FERROMAGNETIC FE [J].

EBERT, H ;

ZELLER, R ;

DRITTLER, B ;

DEDERICHS, PH .

JOURNAL OF APPLIED PHYSICS, 1990, 67 (09) :4576-4578

[6] ORBITAL MAGNETISM IN FE, CO, AND NI [J].

ERIKSSON, O ;

JOHANSSON, B ;

ALBERS, RC ;

BORING, AM ;

BROOKS, MSS .

PHYSICAL REVIEW B, 1990, 42 (04) :2707-2710

[7]

Friedel J., 1958, NUOVO CIM SUPPL, V7, P287, DOI DOI 10.1007/BF02751483

[8] Magnetic behavior of 3d impurities in Cu, Ag, and Au:: First-principles calculations of orbital moments -: art. no. 104401 [J].

Frota-Pessoa, S .

PHYSICAL REVIEW B, 2004, 69 (10)

[9] Pairs of 3d impurities in Au:: local moments and exchange coupling from first-principles [J].

Frota-Pessôa, S .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 226 :1021-1023

[10] 1ST-PRINCIPLES REAL-SPACE LINEAR-MUFFIN-TIN-ORBITAL CALCULATIONS OF 3D IMPURITIES IN CU [J].

FROTAPESSOA, S .

PHYSICAL REVIEW B, 1992, 46 (22) :14570-14577