### Abstract

We report here the physical properties of a new intermetallic superconductor Mo_{7}Re_{13}X(X=B,C) (T_{c}=8.3 K (X=B) and 8.1 K (X=C)). The crystal structure of Mo_{7}Re_{13}X is the β-Mn-type (cubic, space group: P4_{1}32) 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_{B}T_{c}: 2Δ/k _{B}T_{c} values are 4.4 for X=B and 4.2 for X=C, which implies that superconductivity in Mo_{7}Re_{13}X(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 | |

Publication status | Published - Jan 2006 |

Externally published | Yes |

### Fingerprint

### Keywords

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

### ASJC Scopus subject areas

- Materials Science(all)

### Cite this

*Science and Technology of Advanced Materials*,

*7*(1 SPEC. ISS.), 9-11. https://doi.org/10.1016/j.stam.2005.11.001

**Superconductivity in intermetallic compound Mo7Re 13X(X=B,C).** / Kawashima, Kenji; Muranaka, Takahiro; Akimitsu, Jun.

Research output: Contribution to journal › Article

*Science and Technology of Advanced Materials*, vol. 7, no. 1 SPEC. ISS., pp. 9-11. https://doi.org/10.1016/j.stam.2005.11.001

}

TY - JOUR

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

AU - Kawashima, Kenji

AU - Muranaka, Takahiro

AU - Akimitsu, Jun

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

UR - http://www.scopus.com/inward/record.url?scp=33344476812&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33344476812&partnerID=8YFLogxK

U2 - 10.1016/j.stam.2005.11.001

DO - 10.1016/j.stam.2005.11.001

M3 - Article

AN - SCOPUS:33344476812

VL - 7

SP - 9

EP - 11

JO - Science and Technology of Advanced Materials

JF - Science and Technology of Advanced Materials

SN - 1468-6996

IS - 1 SPEC. ISS.

ER -