中文版 | English
Title

Pressure-Induced Superconductivity in Flat-Band Kagome Compounds Pd3P2(S1-x Se x )(8)

Author
Corresponding AuthorLei, Hechang; Yuan, Feng; Zhang, Jinshan; Yu, Weiqiang
Publication Years
2022-06-01
DOI
Source Title
ISSN
0256-307X
EISSN
1741-3540
Volume39Issue:6
Abstract
We performed high-pressure transport studies on the flat-band Kagome compounds, Pd3P2(S1 - x Se x )(8) (x = 0, 0.25), with a diamond anvil cell. For both compounds, the resistivity exhibits an insulating behavior with pressure up to 17 GPa. With pressure above 20 GPa, a metallic behavior is observed at high temperatures in Pd3P2S8, and superconductivity emerges at low temperatures. The onset temperature of superconducting transition T (C) rises monotonically from 2 K to 4.8 K and does not saturate with pressure up to 43 GPa. For the Se-doped compound Pd3P2(S0.75Se0.25)(8), the T (C) is about 1.5 K higher than that of the undoped one over the whole pressure range, and reaches 6.4 K at 43 GPa. The upper critical field with field applied along the c axis at typical pressures is about 50% of the Pauli limit, suggesting a 3D superconductivity. The Hall coefficient in the metallic phase is low and exhibits a peaked behavior at about 30 K, which suggests either a multi-band electronic structure or an electron correlation effect in the system.
URL[Source Record]
Indexed By
SCI ; EI
Language
English
SUSTech Authorship
Others
Funding Project
National Natural Science Foundation of China[51872328,12134020,12104503] ; National Key R&D Program of China["2018YFE0202600","2016YFA0300504"] ; Research Funds of Renmin University of China["18XNLG14","19XNLG13","19XNLG17","21XNLG18","18XNLG24"] ; China Postdoctoral Science Foundation[2020M680797] ; Beijing Natural Science Foundation[Z200005]
WOS Research Area
Physics
WOS Subject
Physics, Multidisciplinary
WOS Accession No
WOS:000813912300001
Publisher
ESI Research Field
PHYSICS
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:1
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/353397
DepartmentDepartment of Physics
Affiliation
1.North China Elect Power Univ, Math & Phys Dept, Beijing 102206, Peoples R China
2.Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China
3.Renmin Univ China, Beijing Key Lab Optoelect Funct Mat & Micronano D, Beijing 100872, Peoples R China
4.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
5.Qingdao Univ, Coll Phys, Qingdao 266071, Peoples R China
Recommended Citation
GB/T 7714
Li, Shuo,Han, Shuo,Yan, Shaohua,et al. Pressure-Induced Superconductivity in Flat-Band Kagome Compounds Pd3P2(S1-x Se x )(8)[J]. CHINESE PHYSICS LETTERS,2022,39(6).
APA
Li, Shuo.,Han, Shuo.,Yan, Shaohua.,Cui, Yi.,Wang, Le.,...&Yu, Weiqiang.(2022).Pressure-Induced Superconductivity in Flat-Band Kagome Compounds Pd3P2(S1-x Se x )(8).CHINESE PHYSICS LETTERS,39(6).
MLA
Li, Shuo,et al."Pressure-Induced Superconductivity in Flat-Band Kagome Compounds Pd3P2(S1-x Se x )(8)".CHINESE PHYSICS LETTERS 39.6(2022).
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