Absolute helicity-dependent photoabsorption cross sections of Fe thin films and quantitative evaluation of magnetic-moment determination

被引：52

作者：

Chakarian, V

Idzerda, YU

Chen, CT

机构：

[1] USN, Res Lab, Washington, DC 20375 USA

[2] AT&T Bell Labs, Murray Hill, NJ 07974 USA

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.57.5312

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Energy and helicity-dependent absolute photoabsorption cross sections at the Fe L-2,L-3 edge, measured in transmission from a supported ultrathin Fe film, are presented. These cross sections and semiempirical total-electron-yield (TEY) equations are used to show that the effects of saturation/self-absorption in the TEY spectra, as reflected in the quantitative evaluation of magnetic moments, can be quite severe. These conclusions are confirmed by directly comparing the data obtained simultaneously by TEY and transmission.

引用

收藏

页码：5312 / 5315

页数：4

相关论文

共 23 条

[1] CIRCULAR MAGNETIC-X-RAY DICHROISM OF 3D IMPURITIES IN NI [J].

BOSKE, T ;

CLEMENS, W ;

CARBONE, C ;

EBERHARDT, W .

PHYSICAL REVIEW B, 1994, 49 (06) :4003-4009

[2] 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

[3]

CHAKARIAN V, 1995, SYNCHROTRON RAD TECH, P187

[4] PERFORMANCE OF THE DRAGON SOFT-X-RAY BEAMLINE [J].

CHEN, CT ;

SETTE, F .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1989, 60 (07) :1616-1621

[5] 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

[6] RAYTRACING, CHOPPER, AND GUIDELINE FOR DOUBLE-HEADED DRAGON MONOCHROMATORS [J].

CHEN, CT .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1992, 63 (01) :1229-1233

[7] 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

[8]

DELGRANDE NK, 1990, PHYS SCRIPTA, V41, P110, DOI 10.1088/0031-8949/41/1/027

[9]

DELGRANDE NK, 1988, P SOC PHOTOOPT INSTR, V911, P6

[10] 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