Goh, S.K., Tompsett, D.A., Saines, P.J., Chang, H.C., Matsumoto, T., Imai, M., Yoshimura, K., Grosche, F.M. (2015) Ambient pressure structural quantum critical point in the phase diagram of (CaxSr1-x)3Rh4Sn13. Physical Review Letters: Moving Physics Forward, 114 (9). ISSN 0031-9007. (doi:10.1103/PhysRevLett.114.097002) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:50713)
| The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. | |
| Official URL: http://dx.doi.org/10.1103/PhysRevLett.114.097002 |
Abstract
The quasiskutterudite superconductor Sr3Rh4Sn13 features a pronounced anomaly in electrical resistivity at T??138K. We show that the anomaly is caused by a second-order structural transition, which can be tuned to 0 K by applying physical pressure and chemical pressure via the substitution of Ca for Sr. A broad superconducting dome is centered around the structural quantum critical point. Detailed analysis of the tuning parameter dependence of T? as well as insights from lattice dynamics calculations strongly support the existence of a structural quantum critical point at ambient pressure when the fraction of Ca is 0.9 (i.e., xc=0.9). This establishes the (CaxSr1-x)3Rh4Sn13 series as an important system for exploring the physics of structural quantum criticality without the need of applying high pressures.
| Item Type: | Article |
|---|---|
| DOI/Identification number: | 10.1103/PhysRevLett.114.097002 |
| Uncontrolled keywords: | Calcium, Ambient pressures, Chemical pressures, Dynamics calculations, Quantum critical points, Quantum criticality, Second orders, Structural transitions, Tuning parameter, Crystal lattices, Functional Materials Group |
| Subjects: |
Q Science > QC Physics > QC173.45 Condensed Matter Q Science > QD Chemistry > QD478 Solid State Chemistry |
| Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
| Depositing User: | Paul Saines |
| Date Deposited: | 06 Oct 2015 15:15 UTC |
| Last Modified: | 05 Nov 2024 10:36 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/50713 (The current URI for this page, for reference purposes) |
University of Kent Author Information
Saines, P.J..
| Creator's ORCID: |
 https://orcid.org/0000-0002-4207-2112
|
|---|---|
| CReDIT Contributor Roles: |
- Export to:
- RefWorks
- EPrints3 XML
- BibTeX
- CSV
- Depositors only (login required):
Altmetric
Altmetric
