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Title: B2+L2{sub 1} ordering in Co{sub 2}MnAl Heusler alloy

Magnetic and structural properties of B2 ordered Co{sub 2}MnAl Heusler alloy have been studied by X-ray diffraction and DC magnetization techniques. X-ray diffractogram shows the structure is of B2 type with preferential site disorder between Mn and Al atoms and presence of a small L2{sub 1} phase. DC magnetization studies at low temperature establish that the antiferromagnetic nature arises mainly due to the antiparallel coupling of spin moments of 3d electrons of Co with Mn atoms. Curie temperature (T{sub c}) is 733 K which is close to T{sub c} of the L2{sub 1} phase.
Authors:
 [1] ; ; ;  [2]
  1. Department of Physics, Amity School of Applied Sciences, Amity University, Gurgaon-122 413 (India)
  2. Department of Physics, Mohanlal Sukhadia University, Udaipur- 313 001 (India)
Publication Date:
OSTI Identifier:
22269352
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1591; Journal Issue: 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANTIFERROMAGNETISM; COUPLING; CURIE POINT; HEUSLER ALLOYS; MAGNETIZATION; X-RAY DIFFRACTION