Unpolarized quasielectrons and the spin polarization at filling fractions between nu=1/3 and nu=2/5

Article

关键词: INCOMPRESSIBLE QUANTUM FLUID;    OPTICALLY PUMPED NMR;    HALL;    STATES;    SKYRMIONS;    EXCITATIONS;    WELLS;   

DOI  :  10.1103/PhysRevB.56.12116

来源: SCIE

【 摘 要 】

We prove that for a hard-core interaction the ground-state spin polarization in the low Zeeman energy limit is given by P=2/nu-5 for filling fractions in the range 1/3 less than or equal to nu less than or equal to 2/5. The same result holds for a Coulomb potential except for marginally small magnetic fields. At the magnetic fields B<20 T unpolarized quasielectrons can manifest themselves by a characteristic peak in the I-V characteristics for tunneling between two nu=1/3 ferromagnets.

【 授权许可】

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