Abstract
Physical properties of a new superconductor Ba24Si100 crystallographically identical to Ba24Ge100 are studied by electric transport, specific heat capacity and magnetic susceptibility measurements. The density of states at the Fermi level NEF=0.148 states eV-1 (Si-atom)-1 and a discrete jump of Cp at the superconducting transition temperature ΔCp=0.272 J K-1 mol-1 are obtained. The exponential fit of Cp under the superconducting states gives an energy gap 2Δ=0.423 meV and shows that this is a superconductor having an s-wave character or an isotropic energy gap. On the basis of the experimental data, other important physical parameters are also described.
| Original language | English |
|---|---|
| Pages (from-to) | 1334-1337 |
| Number of pages | 4 |
| Journal | Journal of Physics and Chemistry of Solids |
| Volume | 67 |
| Issue number | 5-6 |
| DOIs | |
| Publication status | Published - 2006 May |
| Externally published | Yes |
Fingerprint
Keywords
- D. Superconductivity
- Magnetic properties
- Phonons
- Specific heat
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Specific heat capacity and magnetic susceptibility of superconducting Ba24Si100 . / Rachi, Takeshi; Tanigaki, Katsumi; Kumashiro, Ryotaro; Kobayashi, Kensuke; Yoshino, Harukazu; Murata, Keizo; Fukuoka, Hiroshi; Yamanaka, Syoji; Shimotani, Hidekazu; Takenobu, Taishi; Iwasa, Yoshihiro; Sasaki, Takahiko; Kobayashi, Norio; Miyazaki, Yuji; Saito, Kazuya.
In: Journal of Physics and Chemistry of Solids, Vol. 67, No. 5-6, 05.2006, p. 1334-1337.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Specific heat capacity and magnetic susceptibility of superconducting Ba24Si100
AU - Rachi, Takeshi
AU - Tanigaki, Katsumi
AU - Kumashiro, Ryotaro
AU - Kobayashi, Kensuke
AU - Yoshino, Harukazu
AU - Murata, Keizo
AU - Fukuoka, Hiroshi
AU - Yamanaka, Syoji
AU - Shimotani, Hidekazu
AU - Takenobu, Taishi
AU - Iwasa, Yoshihiro
AU - Sasaki, Takahiko
AU - Kobayashi, Norio
AU - Miyazaki, Yuji
AU - Saito, Kazuya
PY - 2006/5
Y1 - 2006/5
N2 - Physical properties of a new superconductor Ba24Si100 crystallographically identical to Ba24Ge100 are studied by electric transport, specific heat capacity and magnetic susceptibility measurements. The density of states at the Fermi level NEF=0.148 states eV-1 (Si-atom)-1 and a discrete jump of Cp at the superconducting transition temperature ΔCp=0.272 J K-1 mol-1 are obtained. The exponential fit of Cp under the superconducting states gives an energy gap 2Δ=0.423 meV and shows that this is a superconductor having an s-wave character or an isotropic energy gap. On the basis of the experimental data, other important physical parameters are also described.
AB - Physical properties of a new superconductor Ba24Si100 crystallographically identical to Ba24Ge100 are studied by electric transport, specific heat capacity and magnetic susceptibility measurements. The density of states at the Fermi level NEF=0.148 states eV-1 (Si-atom)-1 and a discrete jump of Cp at the superconducting transition temperature ΔCp=0.272 J K-1 mol-1 are obtained. The exponential fit of Cp under the superconducting states gives an energy gap 2Δ=0.423 meV and shows that this is a superconductor having an s-wave character or an isotropic energy gap. On the basis of the experimental data, other important physical parameters are also described.
KW - D. Superconductivity
KW - Magnetic properties
KW - Phonons
KW - Specific heat
UR - http://www.scopus.com/inward/record.url?scp=33746923063&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33746923063&partnerID=8YFLogxK
U2 - 10.1016/j.jpcs.2006.01.071
DO - 10.1016/j.jpcs.2006.01.071
M3 - Article
AN - SCOPUS:33746923063
VL - 67
SP - 1334
EP - 1337
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
SN - 0022-3697
IS - 5-6
ER -