Files in this item
High sensitivity heat capacity measurements on Sr2RuO4 under uniaxial pressure
Item metadata
dc.contributor.author | Li, Y. -S. | |
dc.contributor.author | Kikugawa, N. | |
dc.contributor.author | Sokolov, D. A. | |
dc.contributor.author | Jerzembeck, F. | |
dc.contributor.author | Gibbs, A. S. | |
dc.contributor.author | Maeno, Y. | |
dc.contributor.author | Hicks, C. W. | |
dc.contributor.author | Schmalian, Jörg | |
dc.contributor.author | Nicklas, M. | |
dc.contributor.author | Mackenzie, A. P. | |
dc.date.accessioned | 2021-09-08T23:40:19Z | |
dc.date.available | 2021-09-08T23:40:19Z | |
dc.date.issued | 2021-03-09 | |
dc.identifier | 272334270 | |
dc.identifier | 3d83cf06-1fbd-400e-b517-25571bf56298 | |
dc.identifier | 85102301006 | |
dc.identifier | 000627429100070 | |
dc.identifier.citation | Li , Y -S , Kikugawa , N , Sokolov , D A , Jerzembeck , F , Gibbs , A S , Maeno , Y , Hicks , C W , Schmalian , J , Nicklas , M & Mackenzie , A P 2021 , ' High sensitivity heat capacity measurements on Sr 2 RuO 4 under uniaxial pressure ' , Proceedings of the National Academy of Sciences of the United States of America , vol. 118 , no. 10 , e2020492118 . https://doi.org/10.1073/pnas.2020492118 | en |
dc.identifier.issn | 0027-8424 | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/1906.07597v2 | |
dc.identifier.other | ORCID: /0000-0002-7012-1831/work/91340899 | |
dc.identifier.uri | https://hdl.handle.net/10023/23928 | |
dc.description | Funding: Parts of this work were funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - TRR 288 -422213477 (projects A10 and B01). NK acknowledges the support from JSPS KAKENHI (nos. JP17H06136 and JP18K04715) and JST-Mirai Program (no. JPMJMI18A3) in Japan and YM from JSPS KAKENHI (nos. JP15H05852, JP15K21717) and JSPS core-to-core programme. YSL acknowledges the support of a St Leonard’s scholarship from the University of St Andrews, the Engineering and Physical Sciences Research Council via the Scottish Condensed Matter Centre for Doctoral Training under grant EP/G03673X/1, and the Max Planck Society. | en |
dc.description.abstract | A key question regarding the unconventional superconductivity of Sr2RuO4 remains whether the order parameter is single- or two-component. Under a hypothesis of two-component superconductivity, uniaxial pressure is expected to lift their degeneracy, resulting in a split transition. The most direct and fundamental probe of a split transition is heat capacity. Here, we report development of new high-frequency methodology for measurement of heat capacity of samples subject to large and highly homogeneous uniaxial pressure. We place an upper limit on the heat capacity signature of any second transition of a few per cent of the primary superconducting transition. The normalized jump in heat capacity, Δ C/C, grows smoothly as a function of uniaxial pressure, but we find no qualitative evidence of a pressure-induced order parameter transition. Thanks to the high precision of our measurements, these findings place stringent constraints on theories of the superconductivity of Sr2RuO4. | |
dc.format.extent | 560780 | |
dc.language.iso | eng | |
dc.relation.ispartof | Proceedings of the National Academy of Sciences of the United States of America | en |
dc.subject | QC Physics | en |
dc.subject | TK Electrical engineering. Electronics Nuclear engineering | en |
dc.subject | DAS | en |
dc.subject.lcc | QC | en |
dc.subject.lcc | TK | en |
dc.title | High sensitivity heat capacity measurements on Sr2RuO4 under uniaxial pressure | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. School of Chemistry | en |
dc.contributor.institution | University of St Andrews. Condensed Matter Physics | en |
dc.identifier.doi | 10.1073/pnas.2020492118 | |
dc.description.status | Peer reviewed | en |
dc.date.embargoedUntil | 2021-09-09 |
This item appears in the following Collection(s)
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.