Superconducting Properties of a Heavy Electron Material UPt3
作者： Kazushige Machida , Tetsuo Ohmi , Masa-aki Ozaki
DOI: 10.1143/JPSJ.62.3216
关键词: Field (physics) 、 Superconductivity 、 Condensed matter physics 、 Phase diagram 、 Antiferromagnetism 、 Spin-½ 、 Transition temperature 、 Excitation 、 Physics 、 Symmetry breaking
摘要: Double superconducting transitions and the observed isotropy of phase diagram; magnetic field ( H ) vs temperature T in a heavy Fermion compound UPt 3 , are consistently accounted for by scenario based on one-dimensional representation (1D scenario) with odd-parity weak spin-orbit coupling case. A symmetry breaking due to antiferromagnetism N =5 K) lifts spin space degeneracy pairing function split transition c . The 1D explains experiments better than previous 2D two-dimensional representation. identified triplet B low is characterized not only time inversion breaking, but also non-unitarity. In addition usual excitation branch line node, existence gapless this state various long known puzzles, particular, “residual” linear specific heat at
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Yoh Kohori, Takao Kohara, Hirofumi Shibai, Yasukage Oda, Tetsuyuki Kaneko, Yoshio Kitaoka, Kunisuke Asayama, 195Pt Knight Shift in the Heavy Fermion Superconductor UPt3 Journal of the Physical Society of Japan. ,vol. 56, pp. 2263- 2266 ,(1987) , 10.1143/JPSJ.56.2263
K. Behnia, L. Taillefer, J. Flouquet, D. Jaccard, K. Maki, Z. Fisk, Thermal conductivity of superconducting UPt3 Journal of Low Temperature Physics. ,vol. 84, pp. 261- 278 ,(1991) , 10.1007/BF00683610
Kazushige Machida, Toshimitsu Fujita, Tetsuo OHMI, Vortex Structures in an Anisotropic Pairing Superconducting State with Odd-Parity Journal of the Physical Society of Japan. ,vol. 62, pp. 680- 689 ,(1993) , 10.1143/JPSJ.62.680
R Joynt, Phase diagram of d-wave superconductors in a magnetic field Superconductor Science and Technology. ,vol. 1, pp. 210- 217 ,(1988) , 10.1088/0953-2048/1/4/012
M.R. Norman, What is the superconducting order parameter for UPt3 Physica C-superconductivity and Its Applications. ,vol. 194, pp. 203- 204 ,(1992) , 10.1016/0921-4534(92)90692-6
Robert Joynt, The phase diagram of UPt3: a status report Journal of Magnetism and Magnetic Materials. ,vol. 108, pp. 31- 34 ,(1992) , 10.1016/0304-8853(92)91337-S
G.M. Luke, A. Keren, L.P. Le, W.D. Wu, Y.J. Uemura, D.A. Bonn, L. Taillefer, J.D. Garrett, Muon spin relaxation in the heavy fermion system UPt3 Physica B: Condensed Matter. ,vol. 186-188, pp. 264- 266 ,(1993) , 10.1016/0921-4526(93)90548-K
V. Müller, Ch. Roth, D. Maurer, E. W. Scheidt, K. Lüders, E. Bucher, H. E. Bömmel, Ultrasonic determination of different phases in superconducting UPt 3 Physical Review Letters. ,vol. 58, pp. 1224- 1227 ,(1987) , 10.1103/PHYSREVLETT.58.1224
K. Miyake, Anisotropic pairing in heavy fermion superconductors -its origin and effects on transport properties Journal of Magnetism and Magnetic Materials. ,vol. 63, pp. 411- 419 ,(1987) , 10.1016/0304-8853(87)90624-X
T. Trappmann, H. v. Löhneysen, L. Taillefer, Pressure dependence of the superconducting phases in UPt3. Physical Review B. ,vol. 43, pp. 13714- 13716 ,(1991) , 10.1103/PHYSREVB.43.13714