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

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

5 Citations (Scopus)

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 H_c2(0) is estimated to be about 2000-2200 Oe and the coherence length ξ_GL(0) to be 40 nm.

Original language	English
Pages (from-to)	464-470
Number of pages	7
Journal	Physica C: Superconductivity and its applications
Volume	468
Issue number	6
DOIs	https://doi.org/10.1016/j.physc.2008.01.008
Publication status	Published - Mar 30 2008
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/j.physc.2008.01.008

Cite this

@article{3533127084074ab19daffc4759181cf8,

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. ",

year = "2008",

month = mar,

day = "30",

doi = "10.1016/j.physc.2008.01.008",

language = "English",

volume = "468",

pages = "464--470",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "6",

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TY - JOUR

T1 - Thermodynamic properties of the clathrate-type silver-oxide Ag6O8AgHF2

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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DO - 10.1016/j.physc.2008.01.008

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