Anisotropic magneto-transport effects at SrTiO3\LaAlO3 interfaces

Details Anisotropic magneto-transport effects at SrTiO3\LaAlO3 interfaces Anisotropic magneto-transport effects at SrTiO3\LaAlO3 interfaces

2009-02-16

arxiv.org/abs/0902.2668v2

Phys. Rev. B 80, 140403 (2009)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1103/PhysRevB.80.140403

The resistivity as a function of temperature, magnetic field and its orientation for atomically flat SrTiO3\LaAlO3 interfaces with carrier densities of ~3*10^13 cm^-2 is reported. At low magnetic fields superconductivity is observed below 130mK. The temperature dependence of the high field magnetoresistance and its strong anisotropy suggest possible magnetic ordering below 35K. The origin of this ordering and its possible relation to superconductivity are discussed.

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