Nuclear magnetometry studies of spin dynamics in quantum Hall systems

Article

关键词: COMPOSITE FERMIONS;    PHASE-TRANSITION;    POLARIZATION;    SKYRMIONS;    INTEGER;    DIAGRAM;   

DOI  :  10.1103/PhysRevB.90.235308

来源: SCIE

【 摘 要 】

We performed a nuclear magnetometry study on quantum Hall ferromagnet with a bilayer total filling factor of nu(tot) = 2. We found not only a rapid nuclear relaxation but also a sudden change in the nuclear-spin polarization distribution after a one-second interaction with a canted antiferromagnetic phase. We discuss the possibility of observing cooperative phenomena coming from nuclear-spin ensemble triggered by hyperfine interaction in quantum Hall system.

【 授权许可】

Free