Abstract
The correlated metal UCoGe is a weak itinerant ferromagnet with a Curie temperature T C=3 K and a superconductor with a transition temperature T s=0.6 K. We review its basic thermal, magnetic—on the macro and microscopic scale—and transport properties, as well as the response to high pressure. The data unambiguously show that superconductivity and ferromagnetism coexist below T s=0.6 K and are carried by the same 5f electrons. We present evidence that UCoGe is a p-wave superconductor and argue that superconductivity is mediated by critical ferromagnetic spin fluctuations.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
N.T. Huy, A. Gasparini, D.E. de Nijs, Y. Huang, J.C.P. Klaasse, T. Gortenmulder, A. de Visser, A. Hamann, T. Görlach, H. v. Löhneysen, Phys. Rev. Lett. 99, 067006 (2007)
A. de Visser, in Encyclopedia of Materials: Science and Technology, ed. by K.H.J. Buschow, R.W. Cahn, M.C. Flemings, B. Ilschner, E.J. Kramer, S. Mahajan, P. Veyssiere (Elsevier, Oxford, 2010), pp. 1–6
S.S. Saxena, K. Ahilan, P. Agarwal, F.M. Grosche, R.K. Haselwimmer, M. Steiner, E. Pugh, I.R. Walker, S.R. Julian, P. Monthoux, G.G. Lonzarich, A.D. Huxley, I. Sheikin, D. Braithwaite, J. Flouquet, Nature (London) 406, 587 (2000)
D. Aoki, A.D. Huxley, E. Ressouche, D. Braithwaite, J. Flouquet, J.P. Brison, E. Lhotel, C. Paulsen, Nature (London) 413, 613 (2001)
T. Akazawa, H. Hidaka, T. Fujiwara, T.C. Kobayashi, E. Yamamoto, Y. Haga, R. Settai, Y. Onuki, J. Phys., Condens. Matter 16, L29 (2004)
N.F. Berk, J.R. Schrieffer, Phys. Rev. Lett. 17, 433 (1966)
D. Fay, J. Appel, Phys. Rev. B 22, 3173 (1980)
G.G. Lonzarich, in Electron: A Centenary Volume, ed. by M. Springford (Cambridge University Press, Cambridge, 1997). Chapter 6
K.G. Sandeman, G.G. Lonzarich, A.J. Schofield, Phys. Rev. Lett. 90, 167005 (2003)
F. Lévy, I. Sheikin, A. Huxley, Nature Phys. 3, 460 (2007)
A. Miyake, D. Aoki, J. Flouquet, J. Phys. Soc. Jpn. 77, 094709 (2008)
Y. Kamihara, T. Watanabe, M. Hirano, H. Hosono, J. Am. Chem. Soc. 130, 3296 (2008)
K.H.J. Buschow, E. Brück, R.G. van Wierst, F.R. de Boer, L. Havela, V. Sechovský, P. Nozar, E. Sugiura, M. Ono, M. Date, A. Yamagishi, J. Appl. Phys. 67, 5215 (1990)
N.T. Huy, A. de Visser, Solid State Comm. 149, 703 (2009)
N.T. Huy, D.E. de Nijs, Y.K. Huang, A. de Visser, Phys. Rev. Lett. 100, 077001 (2008)
A. de Visser, N.T. Huy, A. Gasparini, D.E. de Nijs, D. Andreica, C. Baines, A. Amato, Phys. Rev. Lett. 102, 167003 (2009)
E. Slooten, T. Naka, A. Gasparini, Y.K. Huang, A. de Visser, Phys. Rev. Lett. 103, 097003 (2009)
F. Canepa, P. Manfrinetti, M. Pani, A. Palenzona, J. Alloys Comp. 234, 225 (1996)
N.T. Huy, Y.K. Huang, A. de Visser, J. Magn. Magn. Mat. 321, 2691 (2009)
D. Aoki, A. Huxley, F. Hardy, D. Braitwaite, E. Ressouche, J. Flouquet, J.P. Brison, C. Paulsen, Acta Phys. Pol. 34, 503 (2003)
F. Hardy, Ph.D. Thesis. University Joseph Fourier, Grenoble (2004), unpublished
V. Sechovský, L. Havela, in Handbook of Magnetic Materials, vol. 11 (North Holland, Amsterdam, 1998), p. 1
R. Rhodes, E.P. Wohlfarth, Proc. R. Soc. Lond. 273, 247 (1963)
N.T. Huy, Ph.D. Thesis. University of Amsterdam (2008), unpublished
T. Moriya, Spin Fluctuations in Itinerant Electron Magnetism (Springer, Berlin, 1985)
M. Tachiki, H. Matsumoto, T. Koyama, H. Umezawa, Solid State Comm. 34, 19 (1980)
A.M. Clogston, Phys. Rev. Lett. 9, 266 (1962)
T.P. Orlando, E.J. McNiff, S. Foner, M.R. Beasley, Phys. Rev. B 19, 4545 (1979)
K. Scharnberg, R.A. Klemm, Phys. Rev. Lett. 54, 2445 (1985)
V.P. Mineev, Phys. Rev. B 66, 134504 (2002)
V.P. Mineev, T. Champel, Phys. Rev. B 69, 144521 (2004)
D. Aoki, T.D. Matsuda, V. Taufour, E. Hassinger, G. Knebel, J. Flouquet, J. Phys. Soc. Jpn. 78, 113709 (2009)
D. Belitz, T.R. Kirkpatrick, T. Vojta, Phys. Rev. Lett. 82, 4707 (1999)
R. Roussev, A.J. Millis, Phys. Rev. B 63, R140504 (2001)
T. Ohta, Y. Nakai, Y. Ihara, K. Ishida, K. Deguchi, N.K. Sato, I. Satoh, J. Phys. Soc. Jpn. 77, 023707 (2008)
T. Ohta, T. Hattori, K. Ishida, Y. Nakai, E. Osaki, K. Deguchi, N.K. Sato, I. Satoh, J. Phys. Soc. Jpn. 79, 023707 (2010)
J. Poltierová Vejpravová, J. Pospíšil, V. Sechovský, arXiv:0806.3561v1
J. Pospíšil, J. Poltierová Vejpravová, V. Sechovský, J. Magn. Magn. Mat. 322, 1137 (2010)
P. de la Mora, O. Navarro, J. Phys., Condens. Matter 20, 285221 (2008)
M. Diviš, Physica B 403, 2505 (2008)
M. Samsel-Czekała, S. Elgazzar, P.M. Oppeneer, E. Talik, W. Walerczyk, R. Troć, J. Phys., Condens. Matter 22, 015503 (2010)
K. Prokeš, A. de Visser, Y.K. Huang, B. Fåk, E. Ressouche, Phys. Rev. B 81, 180407R (2010)
I.F. Foulkes, B.L. Gyorffy, Phys. Rev. B 15, 1395 (1977)
D.E. de Nijs, N.T. Huy, A. de Visser, Phys. Rev. B 77, 140506(R) (2008)
V.P. Mineev, arXiv:0812.2171v2
E. Hassinger, D. Aoki, G. Knebel, J. Flouquet, J. Phys. Soc. Jpn. 77, 073703 (2008)
E. Hassinger, D. Aoki, G. Knebel, J. Flouquet, J. Phys., Conf. Ser. 200, 012055 (2010)
K. Deguchi, S. Ban, E. Oskai, Y. Honma, Y. Shiokawa, N.K. Sato, 9th International Conference on Materials and Mechanism of Superconductivity (September 7–12, 2009, Tokyo), poster
V.P. Mineev, Phys. Rev. B 81, 180504R (2010)
F. Lévy, I. Sheikin, B. Grenier, A.D. Huxley, Science 309, 1343 (2005)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
About this article
Cite this article
Gasparini, A., Huang, Y.K., Huy, N.T. et al. The Superconducting Ferromagnet UCoGe. J Low Temp Phys 161, 134–147 (2010). https://doi.org/10.1007/s10909-010-0188-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10909-010-0188-1