Properties of phase transitions of a higher order

被引:0
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作者
Pradeep Kumar
机构
[1] University of Florida,Center for Ultra Low Temperature Physics, National High Magnetic Field Laboratory and Department of Physics
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Magnetic Field; Phase Transition; Field Theory; Normal State; Magnetic Material;
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摘要
The following is a thermodynamic analysis of a III order (and some aspects of a IV order) phase transition. Such a transition can occur in a superconductor if the normal state is a diamagnet. The equation for a phase boundary in anH-T (H is the magnetic field,T, the temperature) plane is derived. By considering two possible forms of the gradient energy, it is possible to construct a field theory which describes a III or a IV order transition and permits a study of thermal fluctuations and inhomogeneous order parameters.
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页码:705 / 716
页数:11
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