Uniaxial-Stress-Induced Ferromagnetism in the Itinerant Metamagnetic Compound UCoAl Probed by Magnetostriction Measurements
| Autor: | Bernard Salce, Dai Aoki, Jacques Flouquet, Tristan Combier, Yusei Shimizu |
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| Přispěvatelé: | Institute for Solid State Physics, University of Tokyo, The University of Tokyo (UTokyo), Instrumentation, Material and Correlated Electrons Physics (IMAPEC), PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Tohoku University [Sendai], European Project: 258239,EC:FP7:ERC,ERC-2010-StG_20091028,NEWHEAVYFERMION(2010) |
| Rok vydání: | 2015 |
| Předmět: |
[PHYS]Physics [physics]
Materials science Condensed matter physics General Physics and Astronomy Magnetostriction Critical value Thermal expansion Magnetic field Stress (mechanics) Condensed Matter::Materials Science Hysteresis Ferromagnetism Condensed Matter::Strongly Correlated Electrons Fermi-Liquid Anomaly (physics) Hydrostatic-Pressure |
| Zdroj: | Journal of the Physical Society of Japan Journal of the Physical Society of Japan, Physical Society of Japan 日本物理学会, 2015, 84 (2), pp.023704. ⟨10.7566/jpsj.84.023704⟩ Journal of the Physical Society of Japan, 2015, 84 (2), pp.023704. ⟨10.7566/jpsj.84.023704⟩ |
| ISSN: | 1347-4073 0031-9015 |
| Popis: | International audience; Magnetostriction measurements for the Ising-type itinerant metamagnetic compound UCoAl were performed under uniaxial stress for sigma parallel to c-axis using an in situ pressure-tuning device. A ferromagnetic transition was clearly observed at zero magnetic field at least above similar to 0.05 GPa. For a stress of 0.1 GPa, the FM transition is of 2nd order, since the anomaly of the thermal expansion coefficient does not show any hysteresis at the transition. No step like behavior was observed for the FM transition under uniaxial stress in the present study. From the precise stress dependence of T-C, a change of the power (n) law from 3/4 to 1/2 was also found at around 0.1 GPa for the expression of T-C(sigma) proportional to (sigma -sigma(c))(n), where the critical value is sigma(c) similar to 0.026 GPa. |
| Databáze: | OpenAIRE |
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