Structural phase transition of potassium under high-pressure and low-temperature condition

Structural phase transition of potassium under high-pressure and low-temperature condition

We performed electrical resistance and powder X-ray diffraction measurements of potassium under high-pressure and low-temperature condition. In the temperature dependence of resistance under several pressure, no superconducting transition was observed below 1 K. From the powder X-ray diffraction mea...

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Veröffentlicht in:Journal of physics. Conference series 2017-10, Vol.950 (4), p.42020
Hauptverfasser: Sakata, Masafumi, Nakamoto, Yuki, Matsuoka, Takahiro, Ohishi, Yasuo, Shimizu, Katsuya
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Low temperature
Low temperature resistance
Phase transitions
Physics
Potassium
Temperature dependence
X ray powder diffraction
X-ray diffraction
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container_issue 4
container_start_page 42020
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creator Sakata, Masafumi
Nakamoto, Yuki
Matsuoka, Takahiro
Ohishi, Yasuo
Shimizu, Katsuya
description We performed electrical resistance and powder X-ray diffraction measurements of potassium under high-pressure and low-temperature condition. In the temperature dependence of resistance under several pressure, no superconducting transition was observed below 1 K. From the powder X-ray diffraction measurement, the K-III phase, it has a host-guest structure, is stable in wide pressure range. Furthermore, the K-IV phase disappeared and the amorphous-like region with no X-ray diffraction peaks appeared at low temperature below 150 K.
doi_str_mv 10.1088/1742-6596/950/4/042020
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subjects Low temperature
Low temperature resistance
Phase transitions
Physics
Potassium
Temperature dependence
X ray powder diffraction
X-ray diffraction
title Structural phase transition of potassium under high-pressure and low-temperature condition
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