# Spin Accumulation in a Quantum Wire with Rashba  Spin-Orbit Coupling

Authors: Xi Fu; Wenhu Liao; Guanghui Zhou
Journal: Advances in Condensed Matter Physics
 (2008)

---

## Abstract

We investigate theoretically the spin accumulation in a Rashba spin-orbit coupling
quantum wire. Using the scattering matrix approach within the effective
free-electron approximation, we have demonstrated the three components of spin
polarization. It is found that by a few numerical examples, the two peaks for the
out-of-plane spin accumulation〈Sz〉 shift to the edges of quantum wire with the
increase of propagation modes. The period of intrinsic oscillations 〈Sx/y〉 inversely
proportions to the Rashba SOC strength. This effect may be used to differentiate
the intrinsic spin accumulation from the extrinsic one.


---

## Body


---

*Source: 152731-2009-02-15.xml*