Superconductivity in intermetallic compound Mo7Re 13X(X=B,C)

Kenji Kawashima; Takahiro Muranaka; Jun Akimitsu

doi:10.1016/j.stam.2005.11.001

Superconductivity in intermetallic compound Mo₇Re ₁₃X(X=B,C)

Kenji Kawashima, Takahiro Muranaka, Jun Akimitsu

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

4 Citations (Scopus)

Abstract

We report here the physical properties of a new intermetallic superconductor Mo₇Re₁₃X(X=B,C) (T_c=8.3 K (X=B) and 8.1 K (X=C)). The crystal structure of Mo₇Re₁₃X is the β-Mn-type (cubic, space group: P4₁32) and the Re atoms form a tilted octahedron. The magnetization (M-H) curves show a typical type-II superconductivity; the lower critical field H_c1(0), upper critical field H_c2(0) and Ginzburg-Landau (GL) parameter value κ are, respectively, 3.0 Oe, 15.4 T and 101 for X=B and 3.1 Oe, 14.8 T and 98 for X=C. The superconducting gap versus k_BT_c: 2Δ/k _BT_c values are 4.4 for X=B and 4.2 for X=C, which implies that superconductivity in Mo₇Re₁₃X(X=B,C) can be described by an s-wave strong coupling regime.

Original language	English
Pages (from-to)	9-11
Number of pages	3
Journal	Science and Technology of Advanced Materials
Volume	7
Issue number	1 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.stam.2005.11.001
Publication status	Published - Jan 2006
Externally published	Yes

Keywords

Electrical resistivity
Heat capacity
Magnetic susceptibility
MoRe C
MoReB
Superconductivity
WReB
WReC

ASJC Scopus subject areas

Materials Science(all)

Access to Document

10.1016/j.stam.2005.11.001

Cite this

@article{b3753b20961745b59125fdd900ad822b,

title = "Superconductivity in intermetallic compound Mo7Re 13X(X=B,C)",

abstract = "We report here the physical properties of a new intermetallic superconductor Mo7Re13X(X=B,C) (Tc=8.3 K (X=B) and 8.1 K (X=C)). The crystal structure of Mo7Re13X is the β-Mn-type (cubic, space group: P4132) and the Re atoms form a tilted octahedron. The magnetization (M-H) curves show a typical type-II superconductivity; the lower critical field Hc1(0), upper critical field Hc2(0) and Ginzburg-Landau (GL) parameter value κ are, respectively, 3.0 Oe, 15.4 T and 101 for X=B and 3.1 Oe, 14.8 T and 98 for X=C. The superconducting gap versus kBTc: 2Δ/k BTc values are 4.4 for X=B and 4.2 for X=C, which implies that superconductivity in Mo7Re13X(X=B,C) can be described by an s-wave strong coupling regime.",

keywords = "Electrical resistivity, Heat capacity, Magnetic susceptibility, MoRe C, MoReB, Superconductivity, WReB, WReC",

author = "Kenji Kawashima and Takahiro Muranaka and Jun Akimitsu",

note = "Funding Information: This work was partially supported by a Grant-in-Aid for the 21st COE Program from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of the Japanese Government.",

year = "2006",

month = jan,

doi = "10.1016/j.stam.2005.11.001",

language = "English",

volume = "7",

pages = "9--11",

journal = "Science and Technology of Advanced Materials",

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TY - JOUR

T1 - Superconductivity in intermetallic compound Mo7Re 13X(X=B,C)

AU - Kawashima, Kenji

AU - Muranaka, Takahiro

AU - Akimitsu, Jun

N1 - Funding Information: This work was partially supported by a Grant-in-Aid for the 21st COE Program from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of the Japanese Government.

PY - 2006/1

Y1 - 2006/1

N2 - We report here the physical properties of a new intermetallic superconductor Mo7Re13X(X=B,C) (Tc=8.3 K (X=B) and 8.1 K (X=C)). The crystal structure of Mo7Re13X is the β-Mn-type (cubic, space group: P4132) and the Re atoms form a tilted octahedron. The magnetization (M-H) curves show a typical type-II superconductivity; the lower critical field Hc1(0), upper critical field Hc2(0) and Ginzburg-Landau (GL) parameter value κ are, respectively, 3.0 Oe, 15.4 T and 101 for X=B and 3.1 Oe, 14.8 T and 98 for X=C. The superconducting gap versus kBTc: 2Δ/k BTc values are 4.4 for X=B and 4.2 for X=C, which implies that superconductivity in Mo7Re13X(X=B,C) can be described by an s-wave strong coupling regime.

AB - We report here the physical properties of a new intermetallic superconductor Mo7Re13X(X=B,C) (Tc=8.3 K (X=B) and 8.1 K (X=C)). The crystal structure of Mo7Re13X is the β-Mn-type (cubic, space group: P4132) and the Re atoms form a tilted octahedron. The magnetization (M-H) curves show a typical type-II superconductivity; the lower critical field Hc1(0), upper critical field Hc2(0) and Ginzburg-Landau (GL) parameter value κ are, respectively, 3.0 Oe, 15.4 T and 101 for X=B and 3.1 Oe, 14.8 T and 98 for X=C. The superconducting gap versus kBTc: 2Δ/k BTc values are 4.4 for X=B and 4.2 for X=C, which implies that superconductivity in Mo7Re13X(X=B,C) can be described by an s-wave strong coupling regime.

KW - Electrical resistivity

KW - Heat capacity

KW - Magnetic susceptibility

KW - MoRe C

KW - MoReB

KW - Superconductivity

KW - WReB

KW - WReC

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