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spin dynamics nuclear magnetic resonace inelastic neutron scattering interacting spins Theory of High Temperature Spin Dynamics Dissertation / Thesis text Leggett, Anthony J. Fine, Boris Veniaminovich 2012-05-29T17:09:53Z 2012-05-29T17:09:53Z 10000-01-01 2000 The problems of high-temperature spin dynamics have practical applications in the fields of nuclear magnetic resonance and inelastic neutron scattering. At the same time. those problems represent an important limit for the study of strongly interacting many-body systerns. In this thesis, we consider systems of interacting spins-both classical and quantum-and develop the quantitative theory of the time-dependent correlation functions characterizing the high temperature spin dynamics. The original results presented in this thesis include: (I) model-independent analysis of the long-time behavior of the correlation functions of interest, which reveals that that behavior has a universal functional form; (II) model for approximate calculations of the correlation functions of interest; (III) extensive simulations of the classical spin systems performed in order to test the long-time analysis and the approximation technique. Submitted by William Weathers (weathrs2@illinois.edu) on 2012-05-29T17:09:53Z No. of bitstreams: 1 2000_fine.pdf: 4960904 bytes, checksum: 51b70456c26f93739c2de5c62fb3f18f (MD5) Made available in DSpace on 2012-05-29T17:09:53Z (GMT). No. of bitstreams: 1 2000_fine.pdf: 4960904 bytes, checksum: 51b70456c26f93739c2de5c62fb3f18f (MD5) Previous issue date: 2000 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by William Weathers (weathrs2@illinois.edu) on 2012-05-29T17:09:53Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:10:18-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis Thesis U of I Only http://hdl.handle.net/2142/31249 4350757 en ©2000 Fine Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.