Growth, Characterization and Fermi Surface of Heavy Fermion CeCoIn5 Superconductor
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JIA Xiao-Wen,
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LIU Yan,
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YU Li,
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HE Jun-Feng,
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ZHAO Lin,
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ZHANG Wen-Tao,
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LIU Hai-Yun,
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LIU Guo-Dong,
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HE Shao-Long,
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ZHANG Jun,
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LU Wei,
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WU Yue,
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DONG Xiao-Li,
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SUN Li-Ling,
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WANG Gui-Ling,
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ZHU Yong,
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WANG Xiao-Yang,
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PENG Qin-Jun,
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WANG Zhi-Min,
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ZHANG Shen-Jin,
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YANG Feng,
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XU Zu-Yan,
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CHEN Chuang-Tian,
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ZHOU Xing-Jiang
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Abstract
High quality single crystals of heavy Fermion CeCoIn5 superconductor have been grown by flux method with a typical size of (1−2)×(1−2)×(∼0.1) mm3. The single crystals are characterized by structural analysis from x−ray diffraction and Laue diffraction, as well as compositional analysis. Magnetic and electrical measurements on the single crystals show a sharp superconducting transition with a transition temperature at Tc,onset∼2.3 K and a transition width of ∼0.15 K. The resistivity of the CeCoIn5 crystal exhibits a hump at ∼45 K, which is typical of a heavy Fermion system. High resolution angle−resolved photoemission spectroscopy (ARPES) measurements of CeCoIn5 reveal clear Fermi surface sheets that are consistent with the band structure calculations when assuming itinerant Ce 4f electrons at low temperature. This work provides important information on the electronic structure of heavy Fermion CeCoIn5 superconductor. It also lays a foundation for further studies on the physical properties and superconducting mechanism of the heavy Fermion superconductors.
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Cite this article:
JIA Xiao-Wen, LIU Yan, YU Li, HE Jun-Feng, ZHAO Lin, ZHANG Wen-Tao, LIU Hai-Yun, LIU Guo-Dong, HE Shao-Long, ZHANG Jun, LU Wei, WU Yue, DONG Xiao-Li, SUN Li-Ling, WANG Gui-Ling, ZHU Yong, WANG Xiao-Yang, PENG Qin-Jun, WANG Zhi-Min, ZHANG Shen-Jin, YANG Feng, XU Zu-Yan, CHEN Chuang-Tian, ZHOU Xing-Jiang. Growth, Characterization and Fermi Surface of Heavy Fermion CeCoIn
5 Superconductor[J].
Chin. Phys. Lett., 2011, 28(5): 057401.
DOI: 10.1088/0256-307X/28/5/057401
JIA Xiao-Wen, LIU Yan, YU Li, HE Jun-Feng, ZHAO Lin, ZHANG Wen-Tao, LIU Hai-Yun, LIU Guo-Dong, HE Shao-Long, ZHANG Jun, LU Wei, WU Yue, DONG Xiao-Li, SUN Li-Ling, WANG Gui-Ling, ZHU Yong, WANG Xiao-Yang, PENG Qin-Jun, WANG Zhi-Min, ZHANG Shen-Jin, YANG Feng, XU Zu-Yan, CHEN Chuang-Tian, ZHOU Xing-Jiang. Growth, Characterization and Fermi Surface of Heavy Fermion CeCoIn5 Superconductor[J]. Chin. Phys. Lett., 2011, 28(5): 057401. DOI: 10.1088/0256-307X/28/5/057401
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JIA Xiao-Wen, LIU Yan, YU Li, HE Jun-Feng, ZHAO Lin, ZHANG Wen-Tao, LIU Hai-Yun, LIU Guo-Dong, HE Shao-Long, ZHANG Jun, LU Wei, WU Yue, DONG Xiao-Li, SUN Li-Ling, WANG Gui-Ling, ZHU Yong, WANG Xiao-Yang, PENG Qin-Jun, WANG Zhi-Min, ZHANG Shen-Jin, YANG Feng, XU Zu-Yan, CHEN Chuang-Tian, ZHOU Xing-Jiang. Growth, Characterization and Fermi Surface of Heavy Fermion CeCoIn5 Superconductor[J]. Chin. Phys. Lett., 2011, 28(5): 057401. DOI: 10.1088/0256-307X/28/5/057401
JIA Xiao-Wen, LIU Yan, YU Li, HE Jun-Feng, ZHAO Lin, ZHANG Wen-Tao, LIU Hai-Yun, LIU Guo-Dong, HE Shao-Long, ZHANG Jun, LU Wei, WU Yue, DONG Xiao-Li, SUN Li-Ling, WANG Gui-Ling, ZHU Yong, WANG Xiao-Yang, PENG Qin-Jun, WANG Zhi-Min, ZHANG Shen-Jin, YANG Feng, XU Zu-Yan, CHEN Chuang-Tian, ZHOU Xing-Jiang. Growth, Characterization and Fermi Surface of Heavy Fermion CeCoIn5 Superconductor[J]. Chin. Phys. Lett., 2011, 28(5): 057401. DOI: 10.1088/0256-307X/28/5/057401
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