Using Uniaxial Stress to Probe the Relationship between Competing Superconducting States in a Cuprate with Spin-stripe Order
| Autor: | Zurab Guguchia, Tadashi Adachi, M. Elender, N. Kitajima, C. N. Wang, Yoji Koike, Hubertus Luetkens, Anthony A. Amato, Vadim Grinenko, Hans-Henning Klauss, C. Baines, Felix Brückner, Christopher Mudry, Shreenanda Ghosh, John M. Tranquada, Toni Shiroka, Marek Bartkowiak, Clifford W. Hicks, Markus Müller, Debarchan Das |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Superconductivity Condensed matter physics Stress effects Theoretical models General Physics and Astronomy Muon spin spectroscopy 01 natural sciences Magnetic susceptibility Condensed Matter::Superconductivity Pairing 0103 physical sciences Volume fraction Condensed Matter::Strongly Correlated Electrons Cuprate 010306 general physics |
| Zdroj: | Physical Review Letters. 125 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.125.097005 |
| Popis: | We report muon spin rotation and magnetic susceptibility experiments on in-plane stress effects on the static spin-stripe order and superconductivity in the cuprate system ${\mathrm{La}}_{2\ensuremath{-}x}{\mathrm{Ba}}_{x}{\mathrm{CuO}}_{4}$ with $x=0.115$. An extremely low uniaxial stress of $\ensuremath{\sim}0.1\text{ }\text{ }\mathrm{GPa}$ induces a substantial decrease in the magnetic volume fraction and a dramatic rise in the onset of 3D superconductivity, from $\ensuremath{\sim}10$ to 32 K; however, the onset of at-least-2D superconductivity is much less sensitive to stress. These results show not only that large-volume-fraction spin-stripe order is anticorrelated with 3D superconducting coherence but also that these states are energetically very finely balanced. Moreover, the onset temperatures of 3D superconductivity and spin-stripe order are very similar in the large stress regime. These results strongly suggest a similar pairing mechanism for spin-stripe order and the spatially modulated 2D and uniform 3D superconducting orders, imposing an important constraint on theoretical models. |
| Databáze: | OpenAIRE |
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