Xing Xianran, Qiao Zhiyu. Thermodynamics of the Superconducting Phase Transition on High Tc Superconductor RBa2Cu3Oy[J]. Chinese Journal of Engineering, 1996, 18(1): 42-45. doi: 10.13374/j.issn1001-053x.1996.01.010
Citation:
Xing Xianran, Qiao Zhiyu. Thermodynamics of the Superconducting Phase Transition on High Tc Superconductor RBa2Cu3Oy[J]. Chinese Journal of Engineering, 1996, 18(1): 42-45. doi: 10.13374/j.issn1001-053x.1996.01.010
Xing Xianran, Qiao Zhiyu. Thermodynamics of the Superconducting Phase Transition on High Tc Superconductor RBa2Cu3Oy[J]. Chinese Journal of Engineering, 1996, 18(1): 42-45. doi: 10.13374/j.issn1001-053x.1996.01.010
Citation:
Xing Xianran, Qiao Zhiyu. Thermodynamics of the Superconducting Phase Transition on High Tc Superconductor RBa2Cu3Oy[J]. Chinese Journal of Engineering, 1996, 18(1): 42-45. doi: 10.13374/j.issn1001-053x.1996.01.010
The property of superconducting phase transition of the high Tc superconductor RBa2Cu3Oy (R:most rare earth elements) was investigated. The conclusion was drawn that the phase transition changed from first order in magnetic field to second order in non-magnetic field. The representation of the Gibbs free energy of the superconductor RBa2Cu3Oy at the superconducting-normla state transition in non-magnetic field was derived.