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Article
Reversible spin-flop and irreversible metamagneticlike transitions induced by a magnetic field in the layered Gd5Ge4 antiferromagnet
Physical Review B
  • Evgenii M. Levin, Iowa State University
  • Karl A. Gschneidner, Jr., Iowa State University
  • Thomas A. Lograsso, Iowa State University
  • Deborah L. Schlagel, Iowa State University
  • Vitalij K. Pecharsky, Iowa State University
Document Type
Article
Publication Date
4-28-2004
DOI
10.1103/PhysRevB.69.144428
Abstract

Temperature and magnetic field dependencies of the magnetization of single crystal Gd5Ge4 indicate antiferromagnetic coupling along the c direction below 130 K. Both a reversible spin-flop transition when a magnetic field of ∼8.4kOe is applied along the cdirection, and irreversible metamagneticlike transitions when a 20 kOe or greater magnetic field is applied at 4.3 K along any of the three crystallographic axes are observed. Although Gd3+ ions have negligible single ion anisotropy, the metamagnetic transitions and magnetization of Gd5Ge4 in the ferromagnetic state depend on the crystallographic direction reflecting the anisotropy of the exchange interactions due to the distinctly layered Sm5Ge4-type crystal structure.

Comments

This article is from Physical Review B 69 (2004): 144428, doi:10.1103/PhysRevB.69.144428.

Copyright Owner
American Physical Society
Language
en
Date Available
2013-09-23
File Format
application/pdf
Citation Information
Evgenii M. Levin, Karl A. Gschneidner, Thomas A. Lograsso, Deborah L. Schlagel, et al.. "Reversible spin-flop and irreversible metamagneticlike transitions induced by a magnetic field in the layered Gd5Ge4 antiferromagnet" Physical Review B Vol. 69 Iss. 14 (2004) p. 144428
Available at: http://works.bepress.com/thomas_lograsso/155/