LATTICE ANISOTROPY IN ANTIFERROMAGNETIC CHROMIUM

LATTICE ANISOTROPY IN ANTIFERROMAGNETIC CHROMIUM

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...

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Bibliographische Detailangaben
Hauptverfasser: Steinitz,M. O, Schwartz,L. H, Marcus,J. A, Fawcett,E, Reed,W. A
Format: Report
Sprache:eng
Schlagworte:
ANISOTROPY
ANTIFERROMAGNETISM
CHROMIUM
CRYOGENICS
CRYSTAL LATTICES
Crystallography
LATTICE PARAMETERS
MAGNETIC FIELDS
MAGNETOSTRICTION
SINGLE CRYSTALS
THERMAL EXPANSION
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Zusammenfassung: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) Prepared in cooperation with Bell Telephone Labs., Inc., Murray Hill, N. J. Sponsored in part by Advanced Research Projects Agency, Washington, D. C. and National Science Foundation, Washington, D. C.