Unconventional superconductivity in CeCoIn5—a high pressure study
| Autor: | P. G. Pagliuso, Frank Steglich, R. Borth, G. Sparn, J. L. Sarrao, J. D. Thompson, E. Lengyel |
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| Rok vydání: | 2002 |
| Předmět: |
Physics
Superconductivity Condensed matter physics Hydrostatic pressure Electron Condensed Matter Physics Power law Electronic Optical and Magnetic Materials Thermal conductivity Effective mass (solid-state physics) Condensed Matter::Superconductivity Quasiparticle Fermi liquid theory Electrical and Electronic Engineering |
| Zdroj: | Physica B: Condensed Matter. 319:262-267 |
| ISSN: | 0921-4526 |
| DOI: | 10.1016/s0921-4526(02)01127-4 |
| Popis: | The hybridization between a periodic lattice of almost localized (core like) electrons (of lanthanides or actinides) and band electrons has challenged researchers for over 30 years to unravel its microscopic origin and the many puzzling physical phenomena related to it. Among such phenomena are very unusual normal state properties, which differ strongly from Landau–Fermi liquid (FL) behavior or exciting unconventional forms of superconductivity. Here, we report on experimental studies of a recently discovered new class of these heavy fermion superconductors: CeTIn5 (T: transition metal). Our studies point towards the realization of unconventional superconductivity in these compounds. In both CeIrIn5 and in CeCoIn5 the specific heat C(T), thermal conductivity κ(T) and nuclear spin-relaxation rate decrease as a power law of temperature instead of exponentially for T |
| Databáze: | OpenAIRE |
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