Kondo effect goes anisotropic in vanadate oxide superlattices

Abstract

We study the transport properties in SrVO3/LaVO3 (SVO/LVO) superlattices deposited on SrTiO3 (STO) substrates. We show that the electronic conduction occurs in the metallic LVO layers with a galvanomagnetism typical of a 2D Fermi surface. In addition, a Kondo-like component appears in both the thermal variation of resistivity and the magnetoresistance. Surprisingly, in this system where the STO interface does not contribute to the measured conduction, the Kondo correction is strongly anisotropic. We show that the growth temperature allows a direct control of this contribution. Finally, the key role of vanadium mixed valency stabilized by oxygen vacancies is enlightened.

Accepted In Journal of Physics: Cond Mat. Supp Mat File included

References in corpus (17)

• Magnetic effects at the interface between nonmagnetic oxides
• Why Some Interfaces Cannot be Sharp
• Direct imaging of the coexistence of ferromagnetism and superconductivity at the LaAlO3/SrTiO3 interface
• The role of oxygen vacancies in SrTiO3 at the LaAlO3/SrTiO3 interface
• Transport Coefficients of the Anderson Model via the Numerical Renormalization Group
• Origin of interface magnetism in BiMnO3/SrTiO3 and LaAlO3/SrTiO3 heterostructures
• Electrolyte gate-controlled Kondo effect in SrTiO3
• Anisotropic magneto-transport effects at SrTiO3\LaAlO3 interfaces
• Nature of weak magnetism in SrTiO3/LaAlO3 multilayers
• Nanometer scale electronic reconstruction at the interface between LaVO3 and LaVO4
• Effect of charge modulation in (LaVO3)m(SrVO3)n superlattices on the insulator-metal transition
• Spin-Orbit-Induced Magnetic Anisotropy for Impurities in Metallic Samples I. Surface Anisotropy
• Microstructure and interface studies of LaVO3/SrVO3 superlattices
• Mapping electronic reconstruction at the metal/insulator interfaces in \ce{LaVO_3/SrVO_3} heterostructures
• Dominant role of impurity scattering over crystalline anisotropy for magnetotransport properties in the quasi-1D Hollandite Ba1.2Rh8O16
• Designing ferromagnetism in vanadium-oxide based superlattices
• Magnetoresistance, noise properties and the Koshino-Taylor effect in the quasi-1D oxide KRu_4O_8

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