Inverse tunneling magnetoresistance in nanoscale magnetic tunnel junctions and electronic transport in single-molecule magnets
Tae-Suk Kim
School of Physics, Seoul National University, Seoul 151-747, Korea
In this talk I am going to present my recent study of spin-related transport in nanoscale magnetic tunnel junctions (MTJs) and electronic transport in single-molecule magnets (SMMs). In the first part the inverse tunneling magnetoresistance (TMR) effect in nanoscale MTJs will be discussed. The TMR is positive when the transmission probability is close to zero, but cal flip its sign when the transmission probability becomes close to a unity. In the second part the transport properties of SMMs will be discussed. The linear response conductance can be controlled by the external magnetic field in a stepwsie or oscillatory manner.