Accession Number : AD0704801

Title :   LATTICE ANISOTROPY IN ANTIFERROMAGNETIC CHROMIUM,

Corporate Author : NORTHWESTERN UNIV EVANSTON ILL

Personal Author(s) : Steinitz,M. O. ; Schwartz,L. H. ; Marcus,J. A. ; Fawcett,E. ; Reed,W. A.

Report Date : 1970

Pagination or Media Count : 7

Abstract : Thermal expansion and magnetostriction measurements on single-Q, single crystal chromium give the lattice parameter ratios in the transverse spin-density-wave phase, through the spin-flip transition, and in the longitudinal spin-density-wave phase. The spin-flip transition is found to be accompanied by anisotropic discontinuities in length, resulting in a net volume dilatation of 0.0000014 with decreasing temperature. The Q direction is found to be the longest axis at 300 degrees K and to become the shortest axis below about 220 degrees K. (Author)

Descriptors :   (*CHROMIUM, MAGNETOSTRICTION), (*CRYSTAL LATTICES, ANISOTROPY), THERMAL EXPANSION, SINGLE CRYSTALS, ANTIFERROMAGNETISM, MAGNETIC FIELDS, CRYOGENICS

Subject Categories : Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE