Metal-insulator transition in EuO

Details Metal-insulator transition in EuO Metal-insulator transition in EuO

2003-09-16

arxiv.org/abs/cond-mat/0309369v2

Phys. Rev. B 68, 125107 (2003)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1103/PhysRevB.68.125107

It is shown that the spectacular metal-insulator transition in Eu-rich EuO can be simulated within an extended Kondo lattice model. The different orders of magnitude of the jump in resistivity in dependence on the concentration of oxygen vacancies as well as the low-temperature resistance minimum in high-resistivity samples are reproduced quantitatively. The huge colossal magnetoresistance (CMR) is calculated and discussed.

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