Ionic conductivities of CuI phases at high pressures and temperatures

Osamu Ohtaka; Yoshinori Itakura; Hiroshi Arima; Takumi Kikegawa; Akira Yoshiasa

doi:10.1143/JPSJS.79SA.51

Ionic conductivities of CuI phases at high pressures and temperatures

Osamu Ohtaka, Yoshinori Itakura, Hiroshi Arima, Takumi Kikegawa, Akira Yoshiasa

Materials Development Division

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

2 Citations (Scopus)

Abstract

In order to elucidate the electric properties of CuI phases under high pressures and high temperatures, both DC and AC measurements were attempted up to 9 GPa and 1250 K, together with in-situ X-ray diffraction observations for the phase identifications. Super ionic conductivity of 1∼3 Ω^-1 cm^-1 was first measured for three high-pressure and high-temperature phases: the α-AgI-type phase, the disordered zincblende-type phase, and the disordered rocksalt-type phase. The activation energy of super ionic conductivity is around 0.2 eV for these phases. The electric conductivity does not vary at the temperature induced phase transition between disordered zincblende-type and α-AgI-type phases.

Original language	English
Pages (from-to)	51-53
Number of pages	3
Journal	journal of the physical society of japan
Volume	79
Issue number	SUPPL. A
DOIs	https://doi.org/10.1143/JPSJS.79SA.51
Publication status	Published - 2010 Jan 1

Keywords

Copper iodide
High-pressure phases
In-situ experiments
Ionic conductivities
Super ionic conductivity
Synchrotron radiation

ASJC Scopus subject areas

Physics and Astronomy(all)

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abstract = "In order to elucidate the electric properties of CuI phases under high pressures and high temperatures, both DC and AC measurements were attempted up to 9 GPa and 1250 K, together with in-situ X-ray diffraction observations for the phase identifications. Super ionic conductivity of 1∼3 Ω-1 cm-1 was first measured for three high-pressure and high-temperature phases: the α-AgI-type phase, the disordered zincblende-type phase, and the disordered rocksalt-type phase. The activation energy of super ionic conductivity is around 0.2 eV for these phases. The electric conductivity does not vary at the temperature induced phase transition between disordered zincblende-type and α-AgI-type phases.",

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T1 - Ionic conductivities of CuI phases at high pressures and temperatures

AU - Ohtaka, Osamu

AU - Itakura, Yoshinori

AU - Arima, Hiroshi

AU - Kikegawa, Takumi

AU - Yoshiasa, Akira

PY - 2010/1/1

Y1 - 2010/1/1

N2 - In order to elucidate the electric properties of CuI phases under high pressures and high temperatures, both DC and AC measurements were attempted up to 9 GPa and 1250 K, together with in-situ X-ray diffraction observations for the phase identifications. Super ionic conductivity of 1∼3 Ω-1 cm-1 was first measured for three high-pressure and high-temperature phases: the α-AgI-type phase, the disordered zincblende-type phase, and the disordered rocksalt-type phase. The activation energy of super ionic conductivity is around 0.2 eV for these phases. The electric conductivity does not vary at the temperature induced phase transition between disordered zincblende-type and α-AgI-type phases.

AB - In order to elucidate the electric properties of CuI phases under high pressures and high temperatures, both DC and AC measurements were attempted up to 9 GPa and 1250 K, together with in-situ X-ray diffraction observations for the phase identifications. Super ionic conductivity of 1∼3 Ω-1 cm-1 was first measured for three high-pressure and high-temperature phases: the α-AgI-type phase, the disordered zincblende-type phase, and the disordered rocksalt-type phase. The activation energy of super ionic conductivity is around 0.2 eV for these phases. The electric conductivity does not vary at the temperature induced phase transition between disordered zincblende-type and α-AgI-type phases.

KW - Copper iodide

KW - High-pressure phases

KW - In-situ experiments

KW - Ionic conductivities

KW - Super ionic conductivity

KW - Synchrotron radiation

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Ionic conductivities of CuI phases at high pressures and temperatures

Abstract

Keywords

ASJC Scopus subject areas

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