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One of the primary goals of modern condensed matter physics is to elucidate the nature of the ground state in various electronic systems. Many correlated electron materials, such as high temperature superconductors,geometrically frustrated oxides,and low-dimensional magnets are still the objects of fruitful study because of the unique properties which arise due to poorly understood many-body effects. Heavy fermion metals - materials which have high effective electron masses due to these effects - represent a class of materials with exotic properties, such as unusual magnetism, unconventional superconductivity, and "hidden order" parameters. The heavy fermion superconductor URu2Si2 has held the attention of physicists for the last two decades due to the presence of a "hidden order" phase below 17.5 K. It is the goal of the present work to solve the puzzle of hidden order in URu2Si2 and identify the true ground state.
A Dissertation submitted to the Department of Physics in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
Includes bibliographical references.
Christopher R. Wiebe, Professor Directing Dissertation; Naresh Dalal, Outside Committee Member; Gregory Boebinger, Committee Member; Pedro Schlottmann, Committee Member; Jorge Piekarewicz, Committee Member.
Florida State University
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