Abstract
We have measured the Hall resistance and magneto-resistance (MR) of LaAlO3/SrTiO3 heterojunctions at magnetic fields up to 30 T in a temperature range T = 4 K to 70 K. For temperature below 7 K and above 50 K the devices display linear Hall resistance, indicating that one type of charge carriers dominate the transport. For temperatures between 10 K and 40 K, the Hall resistance is strongly non-linear, and is accompanied by a large positive MR, which is governed by the component of magnetic field normal to the interface. This behaviour in the intermediate temperature regime can be related to thermally activated high-mobility carriers.
Original language | Undefined |
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Pages (from-to) | 437-440 |
Number of pages | 4 |
Journal | Journal of the Korean Physical Society |
Volume | 63 |
DOIs | |
Publication status | Published - 2013 |
Keywords
- METIS-301547
- IR-90113