Unusual Pressure-Induced Quantum Phase Transition from Superconducting to Charge-Density Wave State in Rare-Earth-Based Heusler LuPd2In Compound
SCIE
SCOPUS
- Title
- Unusual Pressure-Induced Quantum Phase Transition from Superconducting to Charge-Density Wave State in Rare-Earth-Based Heusler LuPd2In Compound
- Authors
- 김희정; 심지훈; Kim, Sooran; Park, Jae-Hoon; Kim, Kyoo; Min, B., I
- Date Issued
- 2020-10
- Publisher
- AMER PHYSICAL SOC
- Abstract
- We investigate the pressure effects on the electronic structures and phonon properties of rare-earth-based cubic-Heusler compound LuPd2In, on the basis of ab initio density functional theory. We find the occurrence of intriguing phase transition from the superconducting (SC) to charge-density wave (CDW) state under pressure (P), which is quite unusual in that the pressure is detrimental to the CDWstate in usual systems. The SC transition temperature T-C of LuPd2In increases first with increasing pressure, up to P-C approximate to 28 GPa, above which a quantum phase transition into the CDW state takes place. This extraordinary transition originates from the occurrence of phonon softening instability at a special q = M in the Brillouin zone. We thus propose that LuPd2 In is a quite unique material, in which the CDW quantum critical point is realized under the SC dome by applying the pressure.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/105208
- DOI
- 10.1103/PhysRevLett.125.157001
- ISSN
- 0031-9007
- Article Type
- Article
- Citation
- PHYSICAL REVIEW LETTERS, vol. 125, no. 15, 2020-10
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- There are no files associated with this item.
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