Concurrent magnetic and metal-insulator transitions in Eu1-xSmxB6 single crystals

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

doi:10.1063/1.3077023

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Concurrent magnetic and metal-insulator transitions in Eu1-xSmxB6 single crystals

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

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3

초록

The effects of magnetic doping on a EuB6 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 (MITs) 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 Eu1-xSmxB6.

키워드

antiferromagnetic materials; doping; europium compounds; ferromagnetic materials; ferromagnetic-antiferromagnetic transitions; metal-insulator transition; samarium; POLARON; SEMICONDUCTOR; SCATTERING; TRANSPORT

제목: Concurrent magnetic and metal-insulator transitions in Eu1-xSmxB6 single crystals

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

DOI: 10.1063/1.3077023

발행일: 2009-01-26

유형: Article

저널명: Applied Physics Letters

권: 94

호: 4