Spin-Orbit Scattering and Quantum Metallicity in Ultra-Thin Be Films
| dc.creator | Xiong, Y. M. | |
| dc.creator | Karki, A. B. | |
| dc.creator | Young, D. P. | |
| dc.creator | Adams, P. W. | |
| dc.date | 2009-01-13 | |
| dc.date.accessioned | 2026-07-07T12:29:04Z | |
| dc.date.available | 2026-07-07T12:29:04Z | |
| dc.description | We compare and contrast the low temperature magnetotransport properties of ultra-thin, insulating, Be films with and without spin-orbit scattering (SOS). Beryllium films have very little intrinsic SOS, but by "dusting" them with sub-monolayer coverages of Au, one can introduce a well controlled SOS rate. Pure Be films with sheet resistance R >R_Q exhibit a low-temperature negative magnetoresistance (MR) that saturates to the quantum resistance R_Q = h/e^2. This high-field quantum metal phase is believed to represent a new ground state of the system. In contrast, the corresponding negative MR in Be/Au films is greatly diminished, suggesting that, in the presence of strong SOS, the quantum metal phase can only be reached at field scales well beyond those typically available in a low temperature laboratory. | |
| dc.description | 12 pages, 4 figures, to appear in PRB | |
| dc.identifier | https://arxiv.org/abs/0901.1873 | |
| dc.identifier | http://arxiv.org/abs/0901.1873 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/215749 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Superconductivity | |
| dc.title | Spin-Orbit Scattering and Quantum Metallicity in Ultra-Thin Be Films | |
| dc.type | text |