Spin-flip and spin-wave excitations in arbitrarily polarized quantum Hall states

Article

关键词: FILLED LANDAU-LEVEL;    COMPOSITE FERMIONS;    SKYRMIONS;    THERMOPOWER;    SYSTEMS;    INTEGER;    WELLS;    MASS;    NU=1;   

DOI  :  10.1103/PhysRevB.56.7525

来源: SCIE

【 摘 要 】

We study spin-flip and spin-wave excitations for arbitrarily polarized quantum Hall states by employing a fermionic Chern-Simons gauge theory in the low Zeeman energy Limit. We show that the spin-flip correlation functions do not get renormalized by the fluctuations of Chem-Simons gauge field Asa consequence, the excitations for a given integer quantum Hall state are identical to fractional quantum Hall states in the lowest Landau level having the same numerator equal to the integer quantum Hall state. Fully and partially polarized states only possess spin-wave excitations while spin-flip excitations are possible for all states, irrespective of their polarizations.

【 授权许可】

Free