Phase Transitions and Electronic Properties of La1.65Sr0.35CaCu2O4+Cly under High Pressure
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摘要: 利用金刚石压砧中的电阻测量技术和X射线衍射分析了在室温下和22 GPa压力范围内氯氧化合物超导材料La1.65Sr0.35CaCu2O4+Cly的相变行为。观测到了包括由晶相向非晶相转变在内的一些不可逆的相变。Abstract: The pressure-induced phase transitions, including some irreversible transitions from crystallite to noncrystallite, of copper oxy-chloride superconductor La1.65Sr0.35CaCu2O4+Cly were studied by both the measurements of electronic resistance (R) dependence on pressure (p) and X-ray diffraction techniques. The R-p experiments were performed in the diamond anvil cell by resistance measurement technique at room temperature under pressures up to 22 GPa. The interesting results were obtained and are presented first in this paper.
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Key words:
- superconductor /
- high pressure /
- electronic resistance /
- phase transition
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