TY - JOUR
T1 - Thermodynamic properties in the clathrate-type silver- and copper-oxide
T2 - Ag6 O8MX and Cu6O8MX (M = cation, X = anion)
AU - Kawashima, K.
AU - Tozawa, H.
AU - Maruyama, M.
AU - Ichinokawa, R.
AU - Sugiyama, T.
AU - Akimitsu, J.
N1 - Funding Information:
This work was partially supported by a Grant-in-Aid for Science Research from the Ministry of Education, Culture, Sports, Science and Technology, Japan.
PY - 2010/12
Y1 - 2010/12
N2 - We present the thermodynamic properties in the clathrate-type silver- and copper-oxides Ag6O8MX and Cu6O8MX (M = cation, X = anion) compounds, having Ag6O8 (or Cu 6O8)-cage in their crystal structure. Ag6O 8MX and Cu6O8MX are crystallized in a cubic structure with a space group of Fm3̄m. We synthesized high quality samples of Ag6O8MX and Cu6O8MX and examined the electrical resistivity, magnetic susceptibility, and specific heat measurements. The superconductivity in Ag6O8AgX (X = NO3- and HF2- have an isotropic gap symmetry by means of the specific heat data. In Cu6O8MCl, the ground sata of Cu6O 8MCl compounds changed metallic to semiconducting by changing the valence state of M site ion.
AB - We present the thermodynamic properties in the clathrate-type silver- and copper-oxides Ag6O8MX and Cu6O8MX (M = cation, X = anion) compounds, having Ag6O8 (or Cu 6O8)-cage in their crystal structure. Ag6O 8MX and Cu6O8MX are crystallized in a cubic structure with a space group of Fm3̄m. We synthesized high quality samples of Ag6O8MX and Cu6O8MX and examined the electrical resistivity, magnetic susceptibility, and specific heat measurements. The superconductivity in Ag6O8AgX (X = NO3- and HF2- have an isotropic gap symmetry by means of the specific heat data. In Cu6O8MCl, the ground sata of Cu6O 8MCl compounds changed metallic to semiconducting by changing the valence state of M site ion.
KW - Ag0MX
KW - Copper-oxide
KW - Cu 0MX
KW - Silver-oxide
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U2 - 10.1016/j.physc.2009.10.127
DO - 10.1016/j.physc.2009.10.127
M3 - Article
AN - SCOPUS:78649709865
VL - 470
SP - S26-S28
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - SUPPL.1
ER -