Pressure dependence of the superconducting and magnetic transition temperatures in Sr2VO3FeAs
| Autor: | Dirk Johrendt, Hans-Henning Klauss, Franziska Hummel, Hubertus Luetkens, Stefan Holenstein, Zurab Shermadini, Nicolò Barbero, Zurab Guguchia, Elvezio Morenzoni, Anthony A. Amato, Hiraku Ogino, Rustem Khasanov, Sirko Kamusella, Toni Shiroka |
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| Rok vydání: | 2021 |
| Předmět: |
Physics
Superconductivity Magnetic order 02 engineering and technology Pressure dependence Muon spin spectroscopy 021001 nanoscience & nanotechnology Coupling (probability) 01 natural sciences Crystallography Magnetization Condensed Matter::Superconductivity 0103 physical sciences Antiferromagnetism 010306 general physics 0210 nano-technology |
| Zdroj: | Physical Review B. 104 |
| ISSN: | 2469-9969 2469-9950 |
| DOI: | 10.1103/physrevb.104.104507 |
| Popis: | We report muon spin rotation $(\ensuremath{\mu}\mathrm{S}\mathrm{R})$ and magnetization measurements on superconducting ${\mathrm{Sr}}_{2}{\mathrm{VO}}_{3}\mathrm{Fe}\mathrm{As}$ under pressure. At ambient pressure, ${\mathrm{Sr}}_{2}{\mathrm{VO}}_{3}\mathrm{Fe}\mathrm{As}$ undergoes an antiferromagnetic transition of the V moments at ${T}_{N}$ and becomes superconducting at ${T}_{c}l{T}_{N}$. As a function of pressure, ${T}_{N}$ initially decreases while ${T}_{c}$ increases. Surprisingly, once ${T}_{N}\ensuremath{\approx}{T}_{c}$ at 0.6 GPa, ${T}_{N}$ reverses its trend and increases together with ${T}_{c}$, which might indicate a cooperative coupling of the superconducting and the magnetic order. |
| Databáze: | OpenAIRE |
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