Condensed Matter Physics Seminar

2 p.m., Thursday, November 18, 2004
Room 1201, Physics Building

 Spin transport in one dimensional systems

Christina Bena


Abstract:  In the past years there has been a lot of interest in the field of spintronics, due especially to the many possible applications of spin-polarized transport. I will start by briefly reviewing the advantages of spin transport over conventional charge transport, especially in clean one dimensional systems such as carbon nanotubes. I will then describe the properties of spin transport in interacting one dimensional systems characterized by the Luttinger liquid theory. The interactions can have quite dramatic effects, yielding spin diffusion and precession, and also modifying the characteristics of spin injection. As possible applications, I will first describe how one can detect entanglement through spin current correlations in a setup consisting of a superconductor coupled to two carbon nanotubes. Also I will describe spin pumping from a ferromagnet with time dependent magnetization into a Luttinger liquid.
Host:  Das Sarma
Back to Condensed Matter Physics Seminar Home Page