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

Authors :: Yeo, S.
Bunder, J. E.
Lin, Hsiu-Hau
Jung, Myung-Hwa
Lee, Sung-Ik
Source :: Applied Physics Letters; 1/26/2009, Vol. 94 Issue 4, pN.PAG, 3p, 3 Graphs
Publication Year :: 2009
Abstract: The effects of magnetic doping on a EuB<subscript>6</subscript> 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 EuB<subscript>6</subscript>. Magnetic doping simultaneously changes the itinerant carrier density and the magnetic interactions. We discuss the origin of the concurrent magnetic MIT in Eu<subscript>1-x</subscript>Sm<subscript>x</subscript>B<subscript>6</subscript>. [ABSTRACT FROM AUTHOR]

Subjects :: METAL-insulator transitions
TRANSITION metals
ANTIFERROMAGNETISM
FERROMAGNETIC materials
ELECTRIC insulators & insulation

Full Text Access

Tools