Evidence from the Low-Temperature Specific Heat for d-Ware Pairing Symmetry in Pr1.85Ce0.15CuO4
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概要
- 論文の詳細を見る
Recently, possible evidence from the low-temperature specific heat (LTSH) for the lines of nodes in the superconducting order parameter of cuprate superconductors has attracted much attention and is still a controversial issue. To clarify this issue, N-type Pr1.85Ce0.15CuO4 has been investigated by means of X-ray diffraction, electrical resistivity, magnetic-susceptibility and LTSH measurements. X-ray diffraction pattern shows that the sample contains a single T′ phase, and the superconducting transition temperature $T_{\text{cm}}$ taken with the onset of diamagnetism in magnetic-susceptibility measurement is nearly 20 K. The data shows clear evidence for an $\alpha T^{2}$ term at zero magnetic field in LTSH of Pr1.85Ce0.15CuO4, and is consistent with d-wave superconductivity. Furthermore, this result is discussed and compared with those results observed in LTSH of La1.78Sr0.22CuO4.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2003-01-15
著者
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Lin Shu-hui
Department Of Electrical Engineering Southern Taiwan University Of Technology
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Huang Chien-jung
Department Of Applied Physics National University Of Kaohsiung
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Hsu Ching-ming
Department Of Electrical Engineering Southern Taiwan University Of Technology
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Chu I-jung
Department Of Electrical Engineering Southern Taiwan University Of Technology
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Meen Teen-hang
Department Of Electrical Engineering Southern Taiwan University Of Technology
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Wu Kuen-hsien
Department Of Electrical Engineering Southern Taiwan University Of Technology
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Huang Chien-Jung
Department of Electrical Engineering, Southern Taiwan University of Technology, Tainan 710, Taiwan, R.O.C.
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Wu Kuen-Hsien
Department of Electrical Engineering, Southern Taiwan University of Technology, Tainan 710, Taiwan, R.O.C.
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Lin Shu-Hui
Department of Electrical Engineering, Southern Taiwan University of Technology, Tainan 710, Taiwan, R.O.C.
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Hsu Ching-Ming
Department of Electrical Engineering, Southern Taiwan University of Technology, Tainan 710, Taiwan, R.O.C.
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