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journal id: "physicalxreviewxb"
| Authors | A. Gasparini, Y.K. Huang, J. Hartbaum, H. v. Löhneysen, A. de Visser | | Title | Thermal expansion of the superconducting ferromagnet UCoGe |
| Journal | Physical Review B |
| Volume | 82 |
| Year | 2010 |
| Issue | 5 |
| Pages | 052502- |
| ISSN | 10980121 |
| Faculty | Faculty of Science |
| Institute/dept. | FNWI: Van der Waals-Zeeman Institute (WZI) |
| Abstract | We report measurements of the coefficient of linear thermal expansion, α(T), of the superconducting ferromagnet UCoGe. The data taken on a single-crystalline sample along the orthorhombic crystal axes reveal a pronounced anisotropy with the largest length changes along the b axis. The large values of the step sizes Δα at the magnetic and superconducting phase transitions provide solid evidence for bulk magnetism and superconductivity. Specific-heat measurements corroborate bulk superconductivity. Thermal-expansion measurements in magnetic fields B∥a,b show Δα at TC grows rapidly, which indicates the character of the ferromagnetic transition becomes first orderlike. |
| Document type | Article |
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