Journal ArticleDOI
Magnetic and superconducting phases of CePd2Si2
TLDR
The crossover from a magnetically ordered to a non-magnetic spin liquid state has been investigated in a series of resistance measurements under hydrostatic pressures of up to 30 kbar and at temperatures down to below 200 mK in the heavy fermion antiferromagnet CePd2Si2.Abstract:
The cross-over from a magneticallyordered to a non-magnetic spin liquid state has been investigated in a series of resistance measurements under hydrostatic pressures of up to 30 kbar and at temperatures down to below 200 mK in the heavy fermion antiferromagnet CePd2Si2. The electrical resistivity changes dramatically with increasing pressure. Near the critical pressure, at which the magnetic ordering temperature is extrapolated to zero, it exhibits a quasi-linear variation over two orders of magnitude in temperature. This non-Fermi liquid formof π(T) extends down to the onset of a new superconducting transition below 430 mK.read more
Citations
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Journal ArticleDOI
Magnetically mediated superconductivity in heavy fermion compounds
Neil D. Mathur,F. M. Grosche,Stephen Julian,I. R. Walker,D. M. Freye,R. K. W. Haselwimmer,G. G. Lonzarich +6 more
TL;DR: In this article, it was shown that the charge carriers are bound together in pairs by magnetic spin-spin interactions in heavy fermion superconductors CePd2Si2 and CeIn3.
Journal ArticleDOI
Superconductivity on the border of itinerant-electron ferromagnetism in UGe2
Siddharth S. Saxena,Siddharth S. Saxena,Siddharth S. Saxena,P. Agarwal,K. Ahilan,F. M. Grosche,R. K. W. Haselwimmer,Markus J. Steiner,Edward N. Pugh,I. R. Walker,Stephen Julian,P. Monthoux,Gilbert G. Lonzarich,Andrew Huxley,I. Sheikin,Daniel Braithwaite,Jacques Flouquet +16 more
TL;DR: The observation of superconductivity on the border of ferromagnetism in a pure system, UGe 2, which is known to be qualitatively similar to the classic d-electron ferromagnets, is reported.
Journal ArticleDOI
Superconducting phases of f -electron compounds
TL;DR: The experimental status of the study of the superconducting phases of $f$-electron compounds is reviewed in this paper, where superconductivity has been found at the border of magnetic order as well as deep within ferromagnetic and antiferromagnetically ordered states.
Journal ArticleDOI
Theory of superconductivity in strongly correlated electron systems
TL;DR: In this article, the fundamental natures of superconductivity in strongly correlated electron systems (SCES) from a universal point of view are discussed. But, the authors focus on the superconducting properties of the SCES near the Mott transition.
Journal ArticleDOI
Non-Fermi-liquid behaviour in the heavy-fermion system
TL;DR: In this paper, it is suggested that low-energy spin excitations are at the origin of these non-Fermi liquid (NFL) anomalies which occur at a zero-temperature quantum phase transition.
References
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Journal ArticleDOI
Superconductivity in the presence of strong Pauli paramagnetism : CeCu2Si2
TL;DR: In this paper, a comparison was made between four low-temperature properties of LaCu2Si2 and CeCu2 Si2 and it was shown that superconductivity can exist in a metal in which many-body interactions, probably magnetic in origin, have strongly renormalized the properties of the conduction-elec-tron gas.
Book
Spin Fluctuations in Itinerant Electron Magnetism
Tôru Moriya,Yoshinori Takahashi +1 more
TL;DR: In this paper, a general theory of spin fluctuations and thermodynamical properties of itinerant electron magnets is developed, interpolating between the weakly and strongly ferromagnetic limits, and a unified expression is given for the Curie temperature and the physical meaning of the curie-Weiss magnetic susceptibility is discussed.
Journal ArticleDOI
Pressure induced heavy fermion superconductivity of CeCu2Ge2
TL;DR: In this paper, the transport properties of heavy fermion compounds under high pressure were investigated and it was found that the transport property of this compound above 70 kbar was quite similar to the normal pressure ones of CeCu2Si2.
Journal ArticleDOI
Observation of non-Fermi-liquid behavior in U0.2Y0.8Pd3.
Bohdan Andraka,Alexei M. Tsvelik +1 more
TL;DR: In this paper, the temperature and magnetic field dependence of specific heat, magnetic susceptibility, magnetization, and electrical resistivity of U{sub 0.2}Y{sub 1.8}Pd{sub 3}.