Concurrent Magnetic and Metal-Insulator Transitions in (Eu,Sm)B_6 Single Crystals

S. Yeo; J. E. Bunder; Hsiu-Hau Lin; Myung-Hwa Jung; Sung-Ik Lee

doi:10.1063/1.3077023

Concurrent Magnetic and Metal-Insulator Transitions in (Eu,Sm)B_6 Single Crystals

Disordered Systems and Neural Networks 2009-11-13 v1

Authors: S. Yeo , J. E. Bunder , Hsiu-Hau Lin , Myung-Hwa Jung , Sung-Ik Lee

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Abstract

The effects of magnetic doping on a EuB_6 single crystal were investigated based on magnetic and transport measurements. A modest 5% Sm substitution for Eu changes the magnetic and transport properties dramatically and gives rise to concurrent antiferromagnetic and metal-insulator transitions (MIT) from ferromagnetic MIT for EuB6. Magnetic doping simultaneously changes the itinerant carrier density and the magnetic interactions. We discuss the origin of the concurrent magnetic MIT in (Eu,Sm)B_6.

Keywords

magnetic doping metal-insulator transition antiferromagnetism EuB6 single crystal transport properties

Cite

@article{arxiv.0901.4384,
  title  = {Concurrent Magnetic and Metal-Insulator Transitions in (Eu,Sm)B_6 Single Crystals},
  author = {S. Yeo and J. E. Bunder and Hsiu-Hau Lin and Myung-Hwa Jung and Sung-Ik Lee},
  journal= {arXiv preprint arXiv:0901.4384},
  year   = {2009}
}

Comments

13 pages, 3 figures, final version to appear in Appl. Phys. Lett.

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