Experimental Estimates of Dephasing Time in Molecular Magnets
| dc.creator | Keren, Amit | |
| dc.creator | Shafir, Oren | |
| dc.creator | Shimshoni, Efrat | |
| dc.creator | Marvaud, Valerie | |
| dc.creator | Bachschmidt, Anne | |
| dc.creator | Long, Jerome | |
| dc.date | 2007-06-24 | |
| dc.date | 2007-06-26 | |
| dc.date.accessioned | 2026-07-07T08:12:08Z | |
| dc.date.available | 2026-07-07T08:12:08Z | |
| dc.description | Muon spin relaxation measurements in isotropic molecular magnets (MM) with a spin value S ranging from 7/2 to 27/2 are used to determine the magnitude and origin of dephasing time $τ_ϕ$ of molecular magnets. It is found that $τ_ϕ$ ~ 10 nsec with no S or ligand dependence. This indicates a nuclear origin for the stochastic field. Since $τ_ϕ$ is a property of the environment, we argue that it is a number common to similar types of MM. Therefore, $τ_ϕ$ is shorter than the Zener and tunneling times of anisotropic MM such as Fe8 or Mn4 for standard laboratory sweep rates. Our findings call for a stochastic Landau-Zener theory in this particular case. | |
| dc.description | 10 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0706.3506 | |
| dc.identifier | http://arxiv.org/abs/0706.3506 | |
| dc.identifier | Phys. Rev. Lett. 98, 257204 (2007) | |
| dc.identifier | doi:10.1103/PhysRevLett.98.257204 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/132347 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Experimental Estimates of Dephasing Time in Molecular Magnets | |
| dc.type | text |