Share Email Print
cover

Proceedings Paper

Magnetic circular dichroism studies with soft x-rays
Author(s): L. H. Tjeng; Petra Rudolf; George Meigs; Francesco Sette; Chien T. Chen; Yves U. Idzerda
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Soft-x-ray magnetic circular dichroism (SXMCD) is a powerful tool to study the element and site specific magnetic moments in multi-component systems. This is demonstrated for a thin metal film overlayer system and a rare-earth/transition-metal compound. The magnetic properties of ultrathin Ni films on a Cu(100) substrate are investigated at the Ni L2,3 absorption edges. Temperature dependent SXMCD data of various film thickness yield Curie temperatures and the critical exponents used in scaling theories which describe two dimensional magnetic phase transitions. The magnetic moments of Gd and Fe in gadolinium iron garnet (Gd3Fe5O12) were probed at 77 K and 300 K at the Gd M4,5 and at the Fe L2,3 absorption edges. The SXMCD signal at each edge allows the magnetic ordering for each specific ion to be independently determined, and the temperature dependence confirms that the reversal of the macroscopic magnetization is due to the reversal of each local magnetic moment of the Fe and the Gd atoms when the compensation point (Tcomp equals 288 K) is crossed.

Paper Details

Date Published: 1 November 1991
PDF: 8 pages
Proc. SPIE 1548, Production and Analysis of Polarized X Rays, (1 November 1991); doi: 10.1117/12.50581
Show Author Affiliations
L. H. Tjeng, AT&T Bell Labs. (United States)
Petra Rudolf, AT&T Bell Labs. (United States)
George Meigs, AT&T Bell Labs. (United States)
Francesco Sette, AT&T Bell Labs. (United States)
Chien T. Chen, AT&T Bell Labs. (United States)
Yves U. Idzerda, Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 1548:
Production and Analysis of Polarized X Rays
D. Peter Siddons, Editor(s)

© SPIE. Terms of Use
Back to Top