Magnetic circular dichroism in L-3-resonant soft-x-ray inelastic scattering of disordered Fe-Co alloys

被引：20

作者：

Braicovich, L ^{[1
]}

Dallera, C ^{[1
]}

Ghiringhelli, G ^{[1
]}

Brookes, NB ^{[1
]}

Goedkoop, JB ^{[1
]}

机构：

[1] EUROPEAN SYNCHROTRON RADIAT FACIL,F-38043 GRENOBLE,FRANCE

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.55.R14729

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We discuss the information given by dichroism measurements in soft-x-ray resonant scattering from magnetic systems with particular reference to experimental results on disordered FexCo1-x alloys (x=0.05-0.9). We show how to recover the scattering cross sections from the raw data and we introduce the emission dichroism correlating with the difference between occupied valence states with opposite spin. We obtain direct evidence of the filling of Fe majority states upon dilution and of the dominant Fe minority states at E-f (bcc structure); this is even more evident in Co due to the greater d-state occupation. The potential and limitations of this spectroscopic technique are illustrated.

引用

页码：14729 / 14732

页数：4

共 15 条

[1]

Braicovich L., UNPUB

[2]

Brookes N. J., COMMUNICATION

[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] FLUORESCENCE YIELD DETECTION - WHY IT DOES NOT MEASURE THE X-RAY-ABSORPTION CROSS-SECTION [J].

DEGROOT, FMF ;

ARRIO, MA ;

SAINCTAVIT, P ;

CARTIER, C ;

CHEN, CT .

SOLID STATE COMMUNICATIONS, 1994, 92 (12) :991-995

[6] MAGNETIC DICHROISM IN L(2,3) EMISSION OF FE, CO, AND NI FOLLOWING ENERGY-DEPENDENT EXCITATION WITH CIRCULARLY-POLARIZED X-RAYS [J].

DUDA, LC ;

STOHR, J ;

MANCINI, DC ;

NILSSON, A ;

WASSDAHL, N ;

NORDGREN, J ;

SAMANT, MG .

PHYSICAL REVIEW B, 1994, 50 (22) :16758-16761

[7]

EBERT H, 1996, SPIN ORBIT INFLUENCE

[8] OBSERVATION OF MAGNETIC CIRCULAR-DICHROISM IN FE L2,3 X-RAY-FLUORESCENCE SPECTRA [J].

HAGUE, CF ;

MARIOT, JM ;

STRANGE, P ;

DURHAM, PJ ;

GYORFFY, BL .

PHYSICAL REVIEW B, 1993, 48 (05) :3560-3562

[9] COSTER-KRONIG CONTRIBUTIONS TO MAGNETIC CIRCULAR-DICHROISM IN THE L(2,3) X-RAY-FLUORESCENCE OF IRON [J].

HAGUE, CF ;

MARIOT, JM ;

GUO, GY ;

HRICOVINI, K ;

KRILL, G .

PHYSICAL REVIEW B, 1995, 51 (02) :1370-1373

[10]

JOHANSSON B, UNPUB

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