Theory of Nuclear Magnetic Relaxation in Haldane Gap Materials: An Illustration of the Use of (1+1)-Dimensional Field Theory Techniques

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A comprehensive theory of nuclear magnetic relaxation is developed for Haldane Gap materials using nonlinear sigma, boson and fermion models. We include a thorough discussion of of the effects of interchain couplings, nearest neighbour hyperfine couplings and crystal structure. We also introduce a new theory of impurities corresponding to broken chain ends weakly coupled to bulk magnons. The work is compared to recent experiments on NENP.
A University of British Columbia PhD Thesis. Figures and Style files are included together. Note: to Tex, type `Latex phd.tex` after unpacking

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Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/147555

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9512161
 http://arxiv.org/abs/cond-mat/9512161

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arXiv