Tunable Magnetic Relaxation In Magnetic Nanoparticles
| dc.creator | Waintal, Xavier | |
| dc.creator | Brouwer, Piet W. | |
| dc.date | 2003-07-10 | |
| dc.date.accessioned | 2026-07-07T02:52:17Z | |
| dc.date.available | 2026-07-07T02:52:17Z | |
| dc.description | We investigate the magnetization dynamics of a conducting magnetic nanoparticle weakly coupled to source and drain electrodes, under the assumption that all relaxation comes from exchange of electrons with the electrodes. The magnetization dynamics is characterized by a relaxation time $t_1$, which strongly depends on temperature, bias voltage, and gate voltage. While a direct measure of a nanoparticle magnetization might be difficult, we find that $t_1$ can be determined through a time resolved transport measurement. For a suitable choice of gate voltage and bias voltage, the magnetization performs a bias-driven Brownian motion regardless of the presence of anisotropy. | |
| dc.description | 4 pages, 2 eps figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0307256 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0307256 | |
| dc.identifier | Phys. Rev. Lett. 91, 247201 (2003) | |
| dc.identifier | doi:10.1103/PhysRevLett.91.247201 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/21785 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Tunable Magnetic Relaxation In Magnetic Nanoparticles | |
| dc.type | text |