Thermodynamic properties of the clathrate-type silver-oxide Ag6O8AgHF2

K. Kawashima; M. Kriener; M. Ishii; Y. Maeno; J. Akimitsu

doi:10.1016/j.physc.2008.01.008

Thermodynamic properties of the clathrate-type silver-oxide Ag₆O₈AgHF₂

K. Kawashima, M. Kriener, M. Ishii, Y. Maeno, J. Akimitsu

研究成果 › 査読

4 被引用数 (Scopus)

抄録

We report normal-state and superconducting properties of the clathrate-type silver-oxide Ag₆O₈AgHF₂. We present electrical resistivity, DC- and AC-susceptibility and specific-heat measurements of single crystalline Ag₆O₈AgHF₂. In the normal state, Ag₆O₈AgHF₂ exhibits metallic conductivity and a phase transition near 110 K, possibly a structural phase transition as observed in the related compound Ag₆O₈AgNO₃. The onset of superconductivity of our samples is observed around 1.2-1.5 K, and the H-T phase diagram is determined for the first time. The upper critical field H_c2(0) is estimated to be about 2000-2200 Oe and the coherence length ξ_GL(0) to be 40 nm.

本文言語	English
ページ（範囲）	464-470
ページ数	7
ジャーナル	Physica C: Superconductivity and its applications
巻	468
号	6
DOI	https://doi.org/10.1016/j.physc.2008.01.008
出版ステータス	Published - 3月 30 2008
外部発表	はい

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
エネルギー工学および電力技術
電子工学および電気工学

文献へのアクセス

10.1016/j.physc.2008.01.008

他のファイルとリンク

引用スタイル

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title = "Thermodynamic properties of the clathrate-type silver-oxide Ag6O8AgHF2",

abstract = "We report normal-state and superconducting properties of the clathrate-type silver-oxide Ag6O8AgHF2. We present electrical resistivity, DC- and AC-susceptibility and specific-heat measurements of single crystalline Ag6O8AgHF2. In the normal state, Ag6O8AgHF2 exhibits metallic conductivity and a phase transition near 110 K, possibly a structural phase transition as observed in the related compound Ag6O8AgNO3. The onset of superconductivity of our samples is observed around 1.2-1.5 K, and the H-T phase diagram is determined for the first time. The upper critical field Hc2(0) is estimated to be about 2000-2200 Oe and the coherence length ξGL(0) to be 40 nm.",

keywords = "74.25.Ha, 74.25.Jb, 74.70.-b, AC susceptibility, AgOAgHF, Clathrate-type, Resistivity, Silver-oxide, Specific heat",

author = "K. Kawashima and M. Kriener and M. Ishii and Y. Maeno and J. Akimitsu",

note = "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, and Grant-in-Aid for JSPS Fellows. M.K. is supported by MEXT. ",

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AU - Kawashima, K.

AU - Kriener, M.

AU - Ishii, M.

AU - Maeno, Y.

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, and Grant-in-Aid for JSPS Fellows. M.K. is supported by MEXT.

PY - 2008/3/30

Y1 - 2008/3/30

N2 - We report normal-state and superconducting properties of the clathrate-type silver-oxide Ag6O8AgHF2. We present electrical resistivity, DC- and AC-susceptibility and specific-heat measurements of single crystalline Ag6O8AgHF2. In the normal state, Ag6O8AgHF2 exhibits metallic conductivity and a phase transition near 110 K, possibly a structural phase transition as observed in the related compound Ag6O8AgNO3. The onset of superconductivity of our samples is observed around 1.2-1.5 K, and the H-T phase diagram is determined for the first time. The upper critical field Hc2(0) is estimated to be about 2000-2200 Oe and the coherence length ξGL(0) to be 40 nm.

AB - We report normal-state and superconducting properties of the clathrate-type silver-oxide Ag6O8AgHF2. We present electrical resistivity, DC- and AC-susceptibility and specific-heat measurements of single crystalline Ag6O8AgHF2. In the normal state, Ag6O8AgHF2 exhibits metallic conductivity and a phase transition near 110 K, possibly a structural phase transition as observed in the related compound Ag6O8AgNO3. The onset of superconductivity of our samples is observed around 1.2-1.5 K, and the H-T phase diagram is determined for the first time. The upper critical field Hc2(0) is estimated to be about 2000-2200 Oe and the coherence length ξGL(0) to be 40 nm.

KW - 74.25.Ha

KW - 74.25.Jb

KW - 74.70.-b

KW - AC susceptibility

KW - AgOAgHF

KW - Clathrate-type

KW - Resistivity

KW - Silver-oxide

KW - Specific heat

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