Berry-phase blockade in single-molecule magnets |
| |
Authors: | González Gabriel Leuenberger Michael N |
| |
Institution: | NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, USA. |
| |
Abstract: | We formulate the problem of electron transport through a single-molecule magnet (SMM) in the Coulomb blockade regime taking into account topological interference effects for the tunneling of the large spin of a SMM. The interference originates from spin Berry phases associated with different tunneling paths. We show that, in the case of incoherent spin states, it is essential to place the SMM between oppositely spin-polarized source and drain leads in order to detect the spin tunneling in the stationary current, which exhibits topological zeros as a function of the transverse magnetic field. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|