Pressure- and composition-induced structural quantum phase transition in the cubic superconductor (Sr,Ca)3Ir4Sn13

Klintberg, L.E. and Goh, S.K. and Alireza, P.L. and Saines, P.J. and Tompsett, D.A. and Logg, P.W. and Yang, J. and Chen, B. and Yoshimura, K. and Grosche, F.M. (2012) Pressure- and composition-induced structural quantum phase transition in the cubic superconductor (Sr,Ca)3Ir4Sn13. Physical Review Letters, 109 (23). ISSN 0031-9007. (doi:https://doi.org/10.1103/PhysRevLett.109.237008) (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)

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Official URL
http://dx.doi.org/10.1103/PhysRevLett.109.237008

Abstract

We show that the quasi-skutterudite superconductor Sr3Ir 4Sn13 undergoes a structural transition from a simple cubic parent structure, the I phase, to a superlattice variant, the I ? phase, which has a lattice parameter twice that of the high temperature phase. We argue that the superlattice distortion is associated with a charge density wave transition of the conduction electron system and demonstrate that the superlattice transition temperature T* can be suppressed to zero by combining chemical and physical pressure. This enables the first comprehensive investigation of a superlattice quantum phase transition and its interplay with superconductivity in a cubic charge density wave system.

Item Type: Article
Uncontrolled keywords: Charge-density-wave systems, Conduction electrons, Density wave transition, High temperature phase, I-phase, Parent structure, Quantum phase transitions, Simple cubic, Structural transitions
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Q Science > QD Chemistry > QD478 Solid State Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences
Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Paul Saines
Date Deposited: 06 Oct 2015 15:37 UTC
Last Modified: 07 Oct 2015 09:45 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/50722 (The current URI for this page, for reference purposes)
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