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Magnetization of Random and Nonrandom (Cd,Mn)Te Alloys

Published online by Cambridge University Press:  26 February 2011

D. Heiman,
E. D. Isaacs,
P. Becla and
S. Foner
D. Heiman
Affiliation:
Francis Bitter National Magnet Laboratory Massachusetts Institute of Technology, Cambridge, MA 02139
E. D. Isaacs
Affiliation:
Francis Bitter National Magnet Laboratory Massachusetts Institute of Technology, Cambridge, MA 02139
P. Becla
Affiliation:
Francis Bitter National Magnet Laboratory Massachusetts Institute of Technology, Cambridge, MA 02139
S. Foner
Affiliation:
Francis Bitter National Magnet Laboratory Massachusetts Institute of Technology, Cambridge, MA 02139
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Abstract

Pulsed-field magnetization measurements up to 40 T by Faraday rotation were made for random alloy Cd1−xMnx Te with 0.1 < x < 0.5. At liquid helium temperature the magnetization can be separated into the sum of two components: a paramagnetic Brillouin-like part that saturates by B=15 T, and a part linear in B. For large x, the linear part dominates and becomes independent of x. Mean-field calculations suggest that an enhanced magnetization can be obtained with new ordered-alloy crystal structures which have reduced antiferromagnetic cancellations.

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