The spectator fermion superfluid model for high-Tc and heavy fermion superconductors: The pressure effect

作者: A. Kallio , X. Xiong

DOI: 10.1016/0921-4534(92)90421-8

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摘要: Abstract We show that the pressure dependence of T c for high- and heavy fermion superconductors can be explained within a generalized electron-hole liquid model called spectator superfluid model. assign structure (e - , B ++ ) hole-doped -- electron-doped superconductors. This classification explains in natural way observed asymmetry. In both cases, experimental gradients are fitted well if component has much smaller effective mass than bosons. The gradient is predicted to smallest near maximum point, agreement with experiments. theory predicts an increase specific heat linear term all four categories. dependences p ( HFS-compounds UBe 13 UPt 3 brought into experiment we (h + them. Hall coefficient resistance agree experiments HTS-compounds > .

参考文章(28)
V. Z. Kresin, H. Morawitz, Layer plasmons and high- T c superconductivity Physical Review B. ,vol. 37, pp. 7854- 7857 ,(1988) , 10.1103/PHYSREVB.37.7854
Nobukatsu Tanahashi, Yasuhiro Iye, Tsuyoshi Tamegai, Chizuko Murayama, Nobuo Môri, Shusuke Yomo, Noriaki Okazaki, Koichi Kitazawa, The Strontium Content Dependence of Pressure Effect in (La1-xSrx)2CuO4 Japanese Journal of Applied Physics. ,vol. 28, ,(1989) , 10.1143/JJAP.28.L762
C. A. Swenson, R. W. McCallum, K. No, Thermal expansivity below 300 K and low-temperature heat capacity of YBa 2 Cu 3 O 7 Physical Review B. ,vol. 40, pp. 8861- 8871 ,(1989) , 10.1103/PHYSREVB.40.8861
J. Chaussy, J. Flouquet, D. Jaccard, P. Lejay, J. L. Tholence, A. Sulpice, P. Gandit, Thermodynamic and transport properties of UPt3 Journal of Low Temperature Physics. ,vol. 62, pp. 39- 54 ,(1986) , 10.1007/BF00681319
T Miyatake, T Wada, M Kosuge, Y Yaegashi, A Ichinose, H Yamauchi, N Koshizuka, N Mori, S Tanaka, None, Composition dependence of the pressure effect on Tc in (Yb0.7Ca0.3)(Ba0.8Sr0.2)2Cu3Oz. Physical Review B. ,vol. 44, pp. 11971- 11976 ,(1991) , 10.1103/PHYSREVB.44.11971
A. Kallio, V. Apaja, X. Xiong, Exponent relations for superfluids with pair breaking Physica C-superconductivity and Its Applications. ,vol. 191, pp. 23- 31 ,(1992) , 10.1016/0921-4534(92)90626-N
F. Lapierre, P. Haen, R. Briggs, A. Hamzić, A. Fert, J.P. Kappler, Hall effect in heavy fermion systems Journal of Magnetism and Magnetic Materials. ,vol. 63, pp. 338- 340 ,(1987) , 10.1016/0304-8853(87)90604-4
T. Penney, J. Stankiewicz, S. von Molnar, Z. Fisk, J.L. Smith, H.R. Ott, Hall effect in the heavy fermion systems CeCu6 and UBe13 Journal of Magnetism and Magnetic Materials. pp. 370- 372 ,(1986) , 10.1016/0304-8853(86)90624-4
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
J. E. Schirber, D. L. Overmyer, K. D. Carlson, J. M. Williams, A. M. Kini, H. Hau Wang, H. A. Charlier, B. J. Love, D. M. Watkins, G. A. Yaconi, Pressure-temperature phase diagram, inverse isotope effect, and superconductivity in excess of 13 K in κ-(BEDT-TTF)2Cu[N(CN)2]Cl, where BEDT-TTF is bis(ethylenedithio)tetrathiafulvalene Physical Review B. ,vol. 44, pp. 4666- 4669 ,(1991) , 10.1103/PHYSREVB.44.4666