Interplay between sheet resistance increase and magnetotransport properties in LaAlO3/SrTiO3
Abstract
We find that the sheet resistance (Rs) of patterned samples of LaAlO3/SrTiO3 with a length scale of several microns may increase significantly at low temperatures in connection with driving electrical currents and applying in-plane magnetic fields. As the samples are warmed up, Rs recovers to its original value with accelerated recovery near 70K and 160K. Concomitantly with the increase in Rs, the carrier density and the mobility decrease and magnetotransport properties which may be linked to magnetism are suppressed.
- Publication:
-
Physical Review B
- Pub Date:
- August 2012
- DOI:
- 10.1103/PhysRevB.86.085118
- arXiv:
- arXiv:1208.3837
- Bibcode:
- 2012PhRvB..86h5118S
- Keywords:
-
- 75.47.-m;
- 73.40.-c;
- 75.70.Cn;
- Magnetotransport phenomena;
- materials for magnetotransport;
- Electronic transport in interface structures;
- Magnetic properties of interfaces;
- Condensed Matter - Materials Science;
- Condensed Matter - Strongly Correlated Electrons
- E-Print:
- 6 pages, 6 figures