CoBi3-the first binary compound of cobalt with bismuth: high-pressure synthesis and superconductivity
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | TENCÉ, Sophie | |
| hal.structure.identifier | Max-Planck-Institut für Chemische Physik fester Stoffe [CPfS] | |
| dc.contributor.author | JANSON, Oleg | |
| hal.structure.identifier | Kristall- und Materiallabor Physikalisches Institut | |
| dc.contributor.author | KRELLNER, Cornelius | |
| hal.structure.identifier | Max-Planck-Institut für Chemische Physik fester Stoffe [CPfS] | |
| dc.contributor.author | ROSNER, Helge | |
| hal.structure.identifier | Max-Planck-Institut für Chemische Physik fester Stoffe [CPfS] | |
| dc.contributor.author | SCHWARZ, Ulrich | |
| hal.structure.identifier | Max-Planck-Institut für Chemische Physik fester Stoffe [CPfS] | |
| dc.contributor.author | STEGLICH, Frank | |
| dc.date.issued | 2014 | |
| dc.identifier.issn | 0953-8984 | |
| dc.description.abstractEn | The first compound in the cobalt bismuth system was synthesized by high-pressure high-temperature synthesis at 5 GPa and 450 °C. CoBi3 crystallizes in space group Pnma (no. 62) with lattice parameters of a = 8.8464(7) Å, b = 4.0697(4) Å and c = 11.5604(9) Å adopting a NiBi3-type crystal structure. CoBi3 undergoes a superconducting transition at Tc = 0.48(3) K as evidenced by electrical-resistivity and specific-heat measurements. Based on the anomaly of the specific heat at Tc and considering the estimated electron-phonon coupling, the new Bi-rich compound can be classified as a Bardeen-Cooper-Schrieffer-type superconductor with weak electron-phonon coupling. Density-functional theory calculations disclose a sizable influence of the spin-orbit coupling to the valence states and proximity to a magnetic instability, which accounts for a significantly enhanced Sommerfeld coefficient. | |
| dc.language.iso | en | |
| dc.publisher | IOP Publishing | |
| dc.subject.en | Thermodynamic properties | |
| dc.subject.en | Pressure effect | |
| dc.subject.en | Inorganic compounds | |
| dc.subject.en | Materials | |
| dc.title.en | CoBi3-the first binary compound of cobalt with bismuth: high-pressure synthesis and superconductivity | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1088/0953-8984/26/39/395701 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Journal of Physics: Condensed Matter | |
| bordeaux.page | 395701 (5 p.) | |
| bordeaux.volume | 26 | |
| bordeaux.issue | 39 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01064674 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01064674v1 | |
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