Journal of the Korean Physical Society

pISSN 0374-4884 eISSN 1976-8524


Condensed Matter

J. Korean Phy. Soc. 2011; 59(5): 3064-3068

Published online November 15, 2011

Copyright © The Korean Physical Society.

Peculiar Magnetic Properties of the Half-metallic Co2CrAl Heusler Alloy

Ki Won Kim, Joo Yull Rhee, Yury V. Kudryavtsev, Valery G. Prokhorov, Jung Myong Kim, YoungPak Lee


A giant negative magnetization in the Co2CrAl compounds, inboth bulk and thin film, below a certain temperature (T<z) wasobserved. Above T<z, the compound behaves as an ordinaryferromagnet. The negative magnetic alignment might be initiated bythe Landau diamagnetism because of the half-metallic propertiesand the pinning of the negative magnetization is preserved by thepeculiar electronic structures.

Keywords: Co2CrAl Heusler alloy films, Structural disorder, Magnetic properties, Electronic structures