Determination of g-factor in a quantum well channel with a strong Rashba effect

作者：Choi Won Young^*; Chang Joonyeon; Lee Jung Hoon; Cheol Hyun

来源：Journal of Applied Physics, 2014, 115(17): 17C702.

DOI：10.1063/1.4856035

Using the Shubnikov-de Haas oscillation measurement, the g-factor of carriers in a strong Rashba system is observed. To determine g-factor of carriers in the InAs quantum well channel with a strong Rashba effect, the magnetic fields are simultaneously applied along the in-plane direction and the perpendicular direction. The perpendicular field drives the oscillation of conductance for measuring Rashba spin orbit interaction and the in-plane field parallel to the Rashba field interacts with Rashba effect and modifies the intrinsic Rashba parameter. The total field inside the channel is a combination of the Rashba field and the in-plane field, so the modification of Rashba parameter gives a g-factor value of similar to 13 in our system.

• 出版日期2014-5-7