Anomalies at the compensation temperature in the zero-magnetization ferromagnet (Sm,Gd) Al2

X. H. Chen, K. Q. Wang, P. H. Hor, Y. Y. Xue, C. W. Chu

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46 引文 斯高帕斯(Scopus)

摘要

The unusual zero-magnetization ferromagnet (Sm1-x Gdx) Al2 (SGA) with x=0.01 and 0.02 is investigated by magnetic, and magnetotransport and calorimetric measurements. Striking features observed around the compensation temperature Tcomp are an exchange bias in a single-magnetic-lattice compound such as SGA attributable to the anisotropy of the coupling between the spin and orbital moments; an anomalous Hall effect due to the asymmetric magnetic scattering of the conduction electrons; and a field-induced specific heat transition at Tcomp ascribable to the field-induced switching of the spin and orbital moments in a polarized conduction electron sea. The observations reveal the richness of physics in the SGA compound system.

原文English
文章編號054436
期刊Physical Review B - Condensed Matter and Materials Physics
72
發行號5
DOIs
出版狀態Published - 2005 8月 1

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學

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