Superconductivity in LaPd2As2 with a collapsed 122 structure

Subodh Ganesanpotti; Takeshi Yajima; Kousuke Nakano; Yasumasa Nozaki; Takafumi Yamamoto; Cédric Tassel; Yoji Kobayashi; Hiroshi Kageyama

doi:10.1016/j.jallcom.2014.06.054

Superconductivity in LaPd2As2 with a collapsed 122 structure

Subodh Ganesanpotti, Takeshi Yajima, Kousuke Nakano, Yasumasa Nozaki, Takafumi Yamamoto, Cédric Tassel, Yoji Kobayashi, Hiroshi Kageyama

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12 Scopus citations

Abstract

The superconducting properties of LaPd2As2 with a collapsed tetragonal structure are reported. DC magnetization and resistivity measurements reveal that the compound is a type-II bulk superconductor below 1 K. The electronic specific heat coefficient γ is found to be 5.56 mJ mol-1 K-2. The specific heat change at the superconducting transition is 1.17, which is relatively low compared to the BCS weak coupling limit of 1.43. The density of states at the Fermi level calculated from electronic specific heat data is about 0.84 states/(eV f.u.), which may explain the low Tc of this material. These results, together with previous work on A2+M2X2 compounds, imply that the superconducting transition temperature can be tailored by proper chemical substitution. © 2014 Elsevier B.V. All rights reserved.

Original language	English (US)
Pages (from-to)	370-374
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	613
DOIs	https://doi.org/10.1016/j.jallcom.2014.06.054
State	Published - Nov 15 2014
Externally published	Yes

ASJC Scopus subject areas

Materials Chemistry
Mechanics of Materials
Metals and Alloys
Mechanical Engineering

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10.1016/j.jallcom.2014.06.054

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title = "Superconductivity in LaPd2As2 with a collapsed 122 structure",

abstract = "The superconducting properties of LaPd2As2 with a collapsed tetragonal structure are reported. DC magnetization and resistivity measurements reveal that the compound is a type-II bulk superconductor below 1 K. The electronic specific heat coefficient γ is found to be 5.56 mJ mol-1 K-2. The specific heat change at the superconducting transition is 1.17, which is relatively low compared to the BCS weak coupling limit of 1.43. The density of states at the Fermi level calculated from electronic specific heat data is about 0.84 states/(eV f.u.), which may explain the low Tc of this material. These results, together with previous work on A2+M2X2 compounds, imply that the superconducting transition temperature can be tailored by proper chemical substitution. {\textcopyright} 2014 Elsevier B.V. All rights reserved.",

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AU - Ganesanpotti, Subodh

AU - Yajima, Takeshi

AU - Nakano, Kousuke

AU - Nozaki, Yasumasa

AU - Yamamoto, Takafumi

AU - Tassel, Cédric

AU - Kobayashi, Yoji

AU - Kageyama, Hiroshi

N1 - Generated from Scopus record by KAUST IRTS on 2022-09-13

PY - 2014/11/15

Y1 - 2014/11/15

N2 - The superconducting properties of LaPd2As2 with a collapsed tetragonal structure are reported. DC magnetization and resistivity measurements reveal that the compound is a type-II bulk superconductor below 1 K. The electronic specific heat coefficient γ is found to be 5.56 mJ mol-1 K-2. The specific heat change at the superconducting transition is 1.17, which is relatively low compared to the BCS weak coupling limit of 1.43. The density of states at the Fermi level calculated from electronic specific heat data is about 0.84 states/(eV f.u.), which may explain the low Tc of this material. These results, together with previous work on A2+M2X2 compounds, imply that the superconducting transition temperature can be tailored by proper chemical substitution. © 2014 Elsevier B.V. All rights reserved.

AB - The superconducting properties of LaPd2As2 with a collapsed tetragonal structure are reported. DC magnetization and resistivity measurements reveal that the compound is a type-II bulk superconductor below 1 K. The electronic specific heat coefficient γ is found to be 5.56 mJ mol-1 K-2. The specific heat change at the superconducting transition is 1.17, which is relatively low compared to the BCS weak coupling limit of 1.43. The density of states at the Fermi level calculated from electronic specific heat data is about 0.84 states/(eV f.u.), which may explain the low Tc of this material. These results, together with previous work on A2+M2X2 compounds, imply that the superconducting transition temperature can be tailored by proper chemical substitution. © 2014 Elsevier B.V. All rights reserved.

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DO - 10.1016/j.jallcom.2014.06.054

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SN - 0925-8388

VL - 613

SP - 370

EP - 374

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Superconductivity in LaPd2As2 with a collapsed 122 structure

Abstract

ASJC Scopus subject areas

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