摘要
An ultrafast pump-probe spectroscopy system combined with a cryogenic diamond anvil cell(DAC) instrument is developed to investigate the photo-excitation dynamic properties of condensed materials under low temperature and high pressure(LTHP) conditions.The ultrafast dynamics study is performed on Bi_(2)Sr_(2)CaCu_(2)O_(8+δ)(Bi-2212) thin film under LTHP conditions.The superconducting(SC) phase transition has been observed by analyzing the ultrafast dynamics of Bi-2212 as a function of pressure and temperature.Our results suggest that the pump-probe spectroscopy system combined with a cryogenic DAC instrument is an effective method to study the physical mechanism of condensed matter physics at extreme conditions,especially for the SC phase transition.
作者
朱健
李叶西
冯登满
苏德鹏
范东牛
杨松
赵辰晓
赵高扬
李亮
李芳菲
王英惠
周强
Jian Zhu;Ye-Xi Li;Deng-Man Feng;De-Peng Su;Dong-Niu Fan;Song Yang;Chen-Xiao Zhao;Gao-Yang Zhao;Liang Li;Fang-Fei Li;Ying-Hui Wang;Qiang Zhou(Synergetic Extreme Condition High-Pressure Science Center,State Key Laboratory of Superhard Materials,College of Physics,Jilin University,Changchun 130012,China;School of Materials Science and Engineering,Xi'an University of Technology,Xi'an 710048,China)
基金
Project supported by the National Natural Science Foundation of China (Grant Nos. 12274168 and 12074141)。
