Superconductivity in the Endohedral Ga Cluster Compound PdGa5

Zuzanna Ryżyńska; Piotr Wiśniewski; Dariusz Kaczorowski; Weiwei Xie; Robert J. Cava; Tomasz Klimczuk; Michal J. Winiarski

doi:10.1021/acs.jpcc.1c03615

Superconductivity in the Endohedral Ga Cluster Compound PdGa₅

Zuzanna Ryżyńska, Piotr Wiśniewski, Dariusz Kaczorowski, Weiwei Xie, Robert J. Cava, Tomasz Klimczuk, Michal J. Winiarski

School of Arts and Sciences, Chemistry & Chemical Biology

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

2 Scopus citations

Abstract

Superconductivity is observed below Tc = 1.6 K in an endohedral Ga cluster compound PdGa5 using magnetization and heat capacity measurements. Electronic structure calculations show that the density of states (DOS) at the Fermi level is dominated by Ga s and p states and that the overall shape of DOS is similar to what was found in other endohedral Ga cluster superconductors, such as MoxGa5x+1, ReGa5, and T2Ga9 (T = Rh and Ir). Our results provide a more complete picture of the relationship between the valence electron count and superconductivity in the family of endohedral Ga cluster superconductors.

Original language	English (US)
Pages (from-to)	11294-11299
Number of pages	6
Journal	Journal of Physical Chemistry C
Volume	125
Issue number	20
DOIs	https://doi.org/10.1021/acs.jpcc.1c03615
State	Published - May 27 2021

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/acs.jpcc.1c03615

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@article{67c4e0ec45994dc6a3703e46e0705349,

title = "Superconductivity in the Endohedral Ga Cluster Compound PdGa5",

abstract = "Superconductivity is observed below Tc = 1.6 K in an endohedral Ga cluster compound PdGa5 using magnetization and heat capacity measurements. Electronic structure calculations show that the density of states (DOS) at the Fermi level is dominated by Ga s and p states and that the overall shape of DOS is similar to what was found in other endohedral Ga cluster superconductors, such as MoxGa5x+1, ReGa5, and T2Ga9 (T = Rh and Ir). Our results provide a more complete picture of the relationship between the valence electron count and superconductivity in the family of endohedral Ga cluster superconductors.",

author = "Zuzanna Ry{\.z}y{\'n}ska and Piotr Wi{\'s}niewski and Dariusz Kaczorowski and Weiwei Xie and Cava, {Robert J.} and Tomasz Klimczuk and Winiarski, {Michal J.}",

note = "Funding Information: The research at GUT was supported by the National Science Centre (Poland) grant (UMO 2018/29/N/ST5/01286). The work done at Rutgers was supported by the Beckman Young Investigator Award. The analysis of the results at Princeton was supported by the U.S. Department of Energy, Division of Basic Energy Sciences, grant DE-FG02-98ER45706. Publisher Copyright: {\textcopyright} 2021 The Authors. Published by American Chemical Society.",

year = "2021",

month = may,

day = "27",

doi = "10.1021/acs.jpcc.1c03615",

language = "English (US)",

volume = "125",

pages = "11294--11299",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Superconductivity in the Endohedral Ga Cluster Compound PdGa5

AU - Ryżyńska, Zuzanna

AU - Wiśniewski, Piotr

AU - Kaczorowski, Dariusz

AU - Xie, Weiwei

AU - Cava, Robert J.

AU - Klimczuk, Tomasz

AU - Winiarski, Michal J.

N1 - Funding Information: The research at GUT was supported by the National Science Centre (Poland) grant (UMO 2018/29/N/ST5/01286). The work done at Rutgers was supported by the Beckman Young Investigator Award. The analysis of the results at Princeton was supported by the U.S. Department of Energy, Division of Basic Energy Sciences, grant DE-FG02-98ER45706. Publisher Copyright: © 2021 The Authors. Published by American Chemical Society.

PY - 2021/5/27

Y1 - 2021/5/27

N2 - Superconductivity is observed below Tc = 1.6 K in an endohedral Ga cluster compound PdGa5 using magnetization and heat capacity measurements. Electronic structure calculations show that the density of states (DOS) at the Fermi level is dominated by Ga s and p states and that the overall shape of DOS is similar to what was found in other endohedral Ga cluster superconductors, such as MoxGa5x+1, ReGa5, and T2Ga9 (T = Rh and Ir). Our results provide a more complete picture of the relationship between the valence electron count and superconductivity in the family of endohedral Ga cluster superconductors.

AB - Superconductivity is observed below Tc = 1.6 K in an endohedral Ga cluster compound PdGa5 using magnetization and heat capacity measurements. Electronic structure calculations show that the density of states (DOS) at the Fermi level is dominated by Ga s and p states and that the overall shape of DOS is similar to what was found in other endohedral Ga cluster superconductors, such as MoxGa5x+1, ReGa5, and T2Ga9 (T = Rh and Ir). Our results provide a more complete picture of the relationship between the valence electron count and superconductivity in the family of endohedral Ga cluster superconductors.

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U2 - 10.1021/acs.jpcc.1c03615

DO - 10.1021/acs.jpcc.1c03615

M3 - Article

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SN - 1932-7447

VL - 125

SP - 11294

EP - 11299

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 20

ER -

Superconductivity in the Endohedral Ga Cluster Compound PdGa₅

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