Magnetic polarons and magnetoresistance in EuB6

Details Magnetic polarons and magnetoresistance in EuB6 Magnetic polarons and magnetoresistance in EuB6

2003-12-17

arxiv.org/abs/cond-mat/0312437v1

Phys. Rev. B 70, 092408 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, 1 figure

Scientific paper

10.1103/PhysRevB.70.092408

EuB6 is a low carrier density ferromagnet which exhibits large magnetoresistance, positive or negative depending on temperature. The formation of magnetic polarons just above the magnetic critical temperature has been suggested by spin-flip Raman scattering experiments. We find that the fact that EuB6 is a semimetal has to be taken into account to explain its electronic properties, including magnetic polarons and magnetoresistance.

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