Metamagnetic phase transition in ferromagnetic superconductor URhGe
| Autor: | Vladimir P. Mineev |
|---|---|
| Přispěvatelé: | Laboratory of Quantum Theory (GT), PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), 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 (UGA)-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)-Université Grenoble Alpes (UGA) |
| Rok vydání: | 2021 |
| Předmět: |
[PHYS]Physics [physics]
Physics Phase transition Condensed matter physics Strongly Correlated Electrons (cond-mat.str-el) Condensed Matter - Superconductivity FOS: Physical sciences Ferromagnetic superconductor Magnetic susceptibility Superconductivity (cond-mat.supr-con) Paramagnetism Magnetic anisotropy Condensed Matter - Strongly Correlated Electrons Condensed Matter::Materials Science Ferromagnetism Condensed Matter::Superconductivity Condensed Matter::Strongly Correlated Electrons Spontaneous magnetization Critical field |
| Zdroj: | Physical Review B Physical Review B, 2021, 103 (14), pp.144508. ⟨10.1103/PhysRevB.103.144508⟩ |
| ISSN: | 2469-9950 2469-9969 |
| DOI: | 10.48550/arxiv.2102.08091 |
| Popis: | Ferromagnetic superconductor URhGe has orthorhombic structure and possesses spontaneous magnetisation along the c-axis. Magnetic field directed along the $b$-axis suppresses ferromagnetism in $c$-direction and leads to a metamagnetic transition into polarised paramagnetic state in the $b$-direction. The theory of these phenomena based on the specific magnetic anisotropy of this material in $(b,c)$ plane is given. Line of the first order metamagnetic transition ends at a critical point. The Van der Waals - type description of behaviour of physical properties near this point is developed. The triplet superconducting state destroyed by orbital effect is recreated in vicinity of the transition. It is shown that the reentrance of superconductivity is caused by the sharp increase of magnetic susceptibility in $b$ direction near the metamagnetic transition. The specific behaviour of the upper critical field in direction of spontaneous magnetisation in UCoGe and in UGe$_2$ related to the field dependence of magnetic susceptibility is discussed. Comment: 8 pages, 5 figures |
| Databáze: | OpenAIRE |
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