Extraordinary magnetization behavior of single crystalline TbFe_4.4Al_7.6

N. P. Duong; E. Brueck; P. E. Brommer; A. de Visser; F. R. de Boer; K. H. J. Buschow

doi:10.1103/PhysRevB.65.020408

Extraordinary magnetization behavior of single crystalline TbFe_4.4Al_7.6

Materials Science 2009-11-07 v1

Authors: N. P. Duong , E. Brueck , P. E. Brommer , A. de Visser , F. R. de Boer , K. H. J. Buschow

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Abstract

We report the observation of a field-induced transformation from the easy-plane antiferromagnetic structure to the easy-axis ferrimagnetic structure in a single crystal of TbFe_4.4Al_7.6 (tetragonal ThMn_12 structure) at 5 K. Such a field-induced, irreversible transition has been identified for the first time. This transition is accompanied by a giant orthorhombic distortion: epsilon_aa = - epsilon_bb ~ 3.5x10^-4 that is associated with a magnetic hardness (mu_0H_C ~ 3 T) that is unprecedented in this category of materials.

Keywords

field-induced transition antiferromagnetic structure ferrimagnetic structure single crystal orthorhombic distortion magnetic hardness

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@article{arxiv.cond-mat/0111408,
  title  = {Extraordinary magnetization behavior of single crystalline TbFe_4.4Al_7.6},
  author = {N. P. Duong and E. Brueck and P. E. Brommer and A. de Visser and F. R. de Boer and K. H. J. Buschow},
  journal= {arXiv preprint arXiv:cond-mat/0111408},
  year   = {2009}
}

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pdf file, 14 pages, 3 figures; PRB in print

Extraordinary magnetization behavior of single crystalline TbFe_4.4Al_7.6

Abstract

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