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Magnetic phenomena at and near nu =1/2 and 1/4: theory, experiment and interpretation

R. Shankar
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Abstract

I show that the hamiltonian theory of Composite Fermions (CF) is capable of yielding a unified description in fair agreement with recent experiments on polarization P and relaxation rate 1/T_1 in quantum Hall states at filling nu = p/(2ps+1), at and near nu = 1/2 and 1/4, at zero and nonzero temperatures. I show how rotational invariance and two dimensionality can make the underlying interacting theory behave like a free one in a limited context.

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R. Shankar. 2000-02-08. Magnetic phenomena at and near nu =1/2 and 1/4: theory, experiment and interpretation. https://doi.org/10.1103/physrevlett.84.3946

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