Experimental evidence of long-range magnetic order in the c(2X2) MnCu(100)surface alloy - art. no. 094405

Authors
Huttel, Y Teodorescu, CM Bertran, F Krill, G
Citation
Y. Huttel et al., Experimental evidence of long-range magnetic order in the c(2X2) MnCu(100)surface alloy - art. no. 094405, PHYS REV B, 6409(9), 2001, pp. 4405
Citations number
34
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6409
Issue
9
Year of publication
2001
Database
ISI
SICI code
0163-1829(20010901)6409:9<4405:EEOLMO>2.0.ZU;2-A
Abstract
The first experimental evidence of long-range magnetic order in the c(2x2)M nCu(100) surface alloy formed by adsorption of 0.5 monolayer of Mn on Cu(10 0) at room temperature is reported. A carefully prepared c(2x2)MnCu(100) su rface alloy exhibits a clear x-ray magnetic circular dichroism (XMCD) signa l at low temperatures. From the temperature behavior of the XMCD signal, we deduce a Curie temperature T(c)approximate to 50 K. As for other surfaces containing Mn, we demonstrate that the magnetic properties of the surface a lloy are strongly affected by contamination.