Bockhorn, L. and Gornyi, I. V. and Schuh, D. and Reichl, C. and Wegscheider, W. and Haug, R. J. (2014) Magnetoresistance induced by rare strong scatterers in a high-mobility two-dimensional electron gas. PHYSICAL REVIEW B, 90 (16): 165434. ISSN 1098-0121, 1550-235X
Full text not available from this repository. (Request a copy)Abstract
We observe a strong negative magnetoresistance at nonquantizing magnetic fields in a high-mobility two-dimensional electron gas. This strong negative magnetoresistance consists of a narrow peak around zero magnetic field and a huge magnetoresistance at larger fields. The peak shows parabolic magnetic field dependence and is attributed to the interplay of smooth disorder and rare strong scatterers. We identify the rare strong scatterers as macroscopic defects in the material and determine their density from the peak curvature.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MOLECULAR-BEAM EPITAXY; OVAL DEFECTS; GIANT-MAGNETORESISTANCE; ORIGIN; GROWTH; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Rupert Huber |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Aug 2019 11:51 |
| Last Modified: | 09 Aug 2019 11:51 |
| URI: | https://pred.uni-regensburg.de/id/eprint/9332 |
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