Pressure-induced superconductivity extending across the topological phase transition in thallium-based topological materials

Cuiying Pei; Peihao Huang; Peng Zhu; Linlin Liu; Qi Wang; Yi Zhao; Lingling Gao; Changhua Li; Weizheng Cao; Jian Lv; Xiang Li; Zhiwei Wang; Yugui Yao; Binghai Yan; Claudia Felser; Yulin Chen; Hanyu Liu; Yanpeng Qi

doi:10.1016/j.xcrp.2022.101094

Pressure-induced superconductivity extending across the topological phase transition in thallium-based topological materials

Cuiying Pei, Peihao Huang, Peng Zhu, Linlin Liu, Qi Wang, Yi Zhao, Lingling Gao, Changhua Li, Weizheng Cao, Jian Lv, Xiang Li, Zhiwei Wang^*, Yugui Yao, Binghai Yan^*, Claudia Felser, Yulin Chen, Hanyu Liu^*, Yanpeng Qi^*

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The coexistence of superconductivity and topology holds the potential to realize exotic quantum states of matter. Here, we report superconductivity induced by high pressure in three thallium-based materials, covering the phase transition from a normal insulator (TlBiS₂) to a topological insulator (TlBiSe₂) through a Dirac semimetal (TlBiSeS). By increasing the pressure up to 60 GPa, we observe superconductivity phase diagrams with maximal critical temperature (T_c) values at 6.0–8.1 K. Our density functional theory calculations reveal topological surface states in superconductivity phases for all three compounds. Our study paves the path to explore topological superconductivity and topological phase transitions.

Original language	English
Article number	101094
Journal	Cell Reports Physical Science
Volume	3
Issue number	10
DOIs	https://doi.org/10.1016/j.xcrp.2022.101094
Publication status	Published - 19 Oct 2022

Keywords

high pressure
superconductivity
thallium-based materials
topological materials

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10.1016/j.xcrp.2022.101094

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Pei, C., Huang, P., Zhu, P., Liu, L., Wang, Q., Zhao, Y., Gao, L., Li, C., Cao, W., Lv, J., Li, X., Wang, Z., Yao, Y., Yan, B., Felser, C., Chen, Y., Liu, H., & Qi, Y. (2022). Pressure-induced superconductivity extending across the topological phase transition in thallium-based topological materials. Cell Reports Physical Science, 3(10), Article 101094. https://doi.org/10.1016/j.xcrp.2022.101094

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title = "Pressure-induced superconductivity extending across the topological phase transition in thallium-based topological materials",

abstract = "The coexistence of superconductivity and topology holds the potential to realize exotic quantum states of matter. Here, we report superconductivity induced by high pressure in three thallium-based materials, covering the phase transition from a normal insulator (TlBiS2) to a topological insulator (TlBiSe2) through a Dirac semimetal (TlBiSeS). By increasing the pressure up to 60 GPa, we observe superconductivity phase diagrams with maximal critical temperature (Tc) values at 6.0–8.1 K. Our density functional theory calculations reveal topological surface states in superconductivity phases for all three compounds. Our study paves the path to explore topological superconductivity and topological phase transitions.",

keywords = "high pressure, superconductivity, thallium-based materials, topological materials",

author = "Cuiying Pei and Peihao Huang and Peng Zhu and Linlin Liu and Qi Wang and Yi Zhao and Lingling Gao and Changhua Li and Weizheng Cao and Jian Lv and Xiang Li and Zhiwei Wang and Yugui Yao and Binghai Yan and Claudia Felser and Yulin Chen and Hanyu Liu and Yanpeng Qi",

note = "Publisher Copyright: {\textcopyright} 2022 The Author(s)",

year = "2022",

month = oct,

day = "19",

doi = "10.1016/j.xcrp.2022.101094",

language = "English",

volume = "3",

journal = "Cell Reports Physical Science",

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publisher = "Cell Press",

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Pei, C, Huang, P, Zhu, P, Liu, L, Wang, Q, Zhao, Y, Gao, L, Li, C, Cao, W, Lv, J, Li, X , Wang, Z , Yao, Y, Yan, B, Felser, C, Chen, Y, Liu, H & Qi, Y 2022, 'Pressure-induced superconductivity extending across the topological phase transition in thallium-based topological materials', Cell Reports Physical Science, vol. 3, no. 10, 101094. https://doi.org/10.1016/j.xcrp.2022.101094

TY - JOUR

T1 - Pressure-induced superconductivity extending across the topological phase transition in thallium-based topological materials

AU - Pei, Cuiying

AU - Huang, Peihao

AU - Zhu, Peng

AU - Liu, Linlin

AU - Wang, Qi

AU - Zhao, Yi

AU - Gao, Lingling

AU - Li, Changhua

AU - Cao, Weizheng

AU - Lv, Jian

AU - Li, Xiang

AU - Wang, Zhiwei

AU - Yao, Yugui

AU - Yan, Binghai

AU - Felser, Claudia

AU - Chen, Yulin

AU - Liu, Hanyu

AU - Qi, Yanpeng

PY - 2022/10/19

Y1 - 2022/10/19

N2 - The coexistence of superconductivity and topology holds the potential to realize exotic quantum states of matter. Here, we report superconductivity induced by high pressure in three thallium-based materials, covering the phase transition from a normal insulator (TlBiS2) to a topological insulator (TlBiSe2) through a Dirac semimetal (TlBiSeS). By increasing the pressure up to 60 GPa, we observe superconductivity phase diagrams with maximal critical temperature (Tc) values at 6.0–8.1 K. Our density functional theory calculations reveal topological surface states in superconductivity phases for all three compounds. Our study paves the path to explore topological superconductivity and topological phase transitions.

AB - The coexistence of superconductivity and topology holds the potential to realize exotic quantum states of matter. Here, we report superconductivity induced by high pressure in three thallium-based materials, covering the phase transition from a normal insulator (TlBiS2) to a topological insulator (TlBiSe2) through a Dirac semimetal (TlBiSeS). By increasing the pressure up to 60 GPa, we observe superconductivity phase diagrams with maximal critical temperature (Tc) values at 6.0–8.1 K. Our density functional theory calculations reveal topological surface states in superconductivity phases for all three compounds. Our study paves the path to explore topological superconductivity and topological phase transitions.

KW - high pressure

KW - superconductivity

KW - thallium-based materials

KW - topological materials

UR - http://www.scopus.com/inward/record.url?scp=85140259430&partnerID=8YFLogxK

U2 - 10.1016/j.xcrp.2022.101094

DO - 10.1016/j.xcrp.2022.101094

M3 - Article

AN - SCOPUS:85140259430

SN - 2666-3864

VL - 3

JO - Cell Reports Physical Science

JF - Cell Reports Physical Science

IS - 10

M1 - 101094

ER -

Pressure-induced superconductivity extending across the topological phase transition in thallium-based topological materials

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