Spin Phase Transition Studies to Probe Spin Dynamics in Quantum Hall System

20th International Conference on the Application of High Magnetic Fields in Semiconductor Physics

Fauzi, M.H.^1 ; Watanabe, S.^2 ; Hirayama, Y.^1,2

Department of Physics, Tohoku University, Sendai 980-8578, Japan^1

ERATO Nuclear Spin Electronic Project, Sendai 980-8578, Japan^2

关键词: Antiferromagnetic state;    Bi-layer;    Exposed to;    Nuclear spin relaxation;    Nuclear spins;    Nuclear-spin polarization;    Quantum Hall systems;    Sudden change;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/456/1/012010/pdf
DOI  :  10.1088/1742-6596/456/1/012010

来源: IOP

【 摘 要 】

We investigate nuclear spin relaxation process in a canted antiferromagnetic state of the bilayer vtot2 by measuring evolution of the spin phase transition peak of the filling v 2/3. We observe a sudden change in the nuclear spin polarization when the nuclear spin is exposed to the canted antiferromagnetic state.