The structure phase transition of the quenched YBa2Cu3O7−y with tetragonal phase
| Autor: | Mao Xianglei, Li Li-Ping, Wang Jun, Cheng Tingzhu, Chen Zhaojia, Yang Hongshun, Chen Lin, Hu Junbao, Ruan Yao-Zhong, Meng Guangyao, Peng Dingkun, Zhang Yuheng |
|---|---|
| Rok vydání: | 1988 |
| Předmět: |
Quantum phase transition
Phase transition Materials science Condensed matter physics Structure (category theory) Energy Engineering and Power Technology Ferroics Condensed Matter Physics Thermal expansion Electronic Optical and Magnetic Materials Tetragonal crystal system Electrical resistance and conductance Phase (matter) Electrical and Electronic Engineering |
| Zdroj: | Physica C: Superconductivity. :978-979 |
| ISSN: | 0921-4534 |
| Popis: | The single (123) phase of Y-Ba-Cu oxides with T-phase structure was prepared using the air-quenching technique. From the measurements of electrical resistance, thermal expansion coefficience, specific heat, ac susceptibility and XRD, it is the first time to find the existance of a structure phase transition. It is suggested to be a structure phase transition from Y-phase to O-phase. The explanation for low Tc in this system is also proposed in this paper. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|