STRUCTURAL PHASE TRANSITION IN BISMUTH HIGH-Tc SUPERCONDUCTING MATERIALS UNDER SYMMETRY OF D174h(I4/mmm)

doi:10.1088/1004-423X/7/11/005

Abstract

Abstract By applying the Landau's second-order phase transition theory, the symmetry changes due to the continuous phase transition from the phase of D¹⁷_4h symmetry were studied. The possible low symmetry phases were obtained by minimizing the thermodynamic potential expanded in the order parameters up to fourth order. Some related experimental results were discussed.

Received: 05 September 1997
Revised: 07 May 1998
Accepted manuscript online:

PACS:	74.72.Hs
	74.62.-c	(Transition temperature variations, phase diagrams)
	74.25.Bt	(Thermodynamic properties)

Fund: Project supported by the Foundation of State Educational Commission of China for outstanding young teachers in University.

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Pan Guo-qiang (潘国强) STRUCTURAL PHASE TRANSITION IN BISMUTH HIGH-T_c SUPERCONDUCTING MATERIALS UNDER SYMMETRY OF D¹⁷_4h(I4/mmm) 1998 Acta Physica Sinica (Overseas Edition) 7 832

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STRUCTURAL PHASE TRANSITION IN BISMUTH HIGH-Tc SUPERCONDUCTING MATERIALS UNDER SYMMETRY OF D174h(I4/mmm)

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STRUCTURAL PHASE TRANSITION IN BISMUTH HIGH-T_c SUPERCONDUCTING MATERIALS UNDER SYMMETRY OF D¹⁷_4h(I4/mmm)