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Article
Crystallography, anisotropic metamagnetism, and magnetocaloric effect in Tb5Si2.2Ge1.8
Physical Review B
  • Min Zou, Iowa State University
  • Yaroslav Mudryk, Iowa State University
  • Vitalij K. Pecharsky, Iowa State University
  • Karl A. Gschneidner, Jr., Iowa State University
  • Deborah L. Schlagel, Iowa State University
  • Thomas A. Lograsso, Iowa State University
Document Type
Article
Publication Date
1-16-2007
DOI
10.1103/PhysRevB.75.024418
Abstract

The metamagnetic-like transitions and giant magnetocaloric effect were observed with the magnetic field applied parallel to the aand c axes, but not the b axis in a Tb5Si2.2Ge1.8 single crystal. The in situ x-ray powder diffraction study indicates that these metamagnetic-like transitions are coupled to crystallographic phase transformations occurring via strong magnetoelastic interactions. The magnetocrystalline anisotropy plays an important role in this system. Magnetic fields less than 40 kOe cannot drive either the magnetic or the crystallographic phase transition to completion for Tb5Si2.2Ge1.8 powder due to the strong single ion anisotropy of Tb.

Comments

This article is from Physical Review B 75 (2007): 024418, doi:10.1103/PhysRevB.75.024418.

Copyright Owner
American Physical Society
Language
en
Date Available
2013-09-23
File Format
application/pdf
Citation Information
Min Zou, Yaroslav Mudryk, Vitalij K. Pecharsky, Karl A. Gschneidner, et al.. "Crystallography, anisotropic metamagnetism, and magnetocaloric effect in Tb5Si2.2Ge1.8" Physical Review B Vol. 75 Iss. 2 (2007) p. 024418
Available at: http://works.bepress.com/d_l_schlagel/111/