Magnetoresistive Properties of Manganite-Based Heterojunctions

• Authors: J. Devenson , B. Vengalis , V. Lisauskas , A. Oginskis , F. Anisimovas , S. Ašmontas
• Languages of publication: EN

Abstracts

EN

Hole-doped La_{2/3}Ba_{1/3}MnO_{3} (LBaMO), La_{2/3}Ca_{1/3}MnO_{3} (LCaMO) and La_{2/3}Ce_{1/3}MnO_{3} (LCeMO) thin films were grown heteroepitaxially on 0.1 wt.% Nb-doped SrTiO_{3}(100) (STON) substrates by magnetron sputtering. The prepared LBaMO/STON, LCaMO/STON, LCeMO/STON heterostructures demonstrated nonlinear rectifying current-voltage characteristics. Negative magnetorestance values have been indicated at low bias, meanwhile bias-dependent magnetoresistance has been measured at positive bias voltage values U > U_d where U_d is the interfacial potential, corresponding to a steep current increase at a forward bias.

Keywords

EN

75.70.-i; 71.30.+h; 73.50.-h

Discipline

• 75.70.-i: Magnetic properties of thin films, surfaces, and interfaces(for magnetic properties of nanostructures, see 75.75.-c)
• 71.30.+h: Metal-insulator transitions and other electronic transitions
• 73.50.-h: Electronic transport phenomena in thin films(for electronic transport in mesoscopic systems, see 73.23.-b; see also 73.40.-c Electronic transport in interface structures; for electronic transport in nanoscale materials and structures, see 73.63.-b)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 6
• Pages: 1130-1132

Dates

published

2009-06

Contributors

author

J. Devenson

• Semiconductor Physics Institute, A. Goštauto 11, Vilnius, Lithuania

author

B. Vengalis

• Semiconductor Physics Institute, A. Goštauto 11, Vilnius, Lithuania

author

V. Lisauskas

• Semiconductor Physics Institute, A. Goštauto 11, Vilnius, Lithuania

author

A. Oginskis

• Semiconductor Physics Institute, A. Goštauto 11, Vilnius, Lithuania

author

F. Anisimovas

• Semiconductor Physics Institute, A. Goštauto 11, Vilnius, Lithuania

author

S. Ašmontas

• Semiconductor Physics Institute, A. Goštauto 11, Vilnius, Lithuania

References

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• 6. B. Vengalis, J. Devenson, K. Šliužienė, R. Butkutė, M.A. Rosa, V. Lisauskas, A. Oginskis, F. Anisimovas, Thin Solid Films 515, 599 (2006)

Identifiers

DOI

10.12693/APhysPolA.115.1130