TY - JOUR
T1 - Phase transitions of ScOOH under high pressure
AU - Ito, Yoshiaki
AU - Ikeda, Osamu
AU - Ban, Rintaro
AU - Kubota, Taito
AU - Sakamaki, Tatsuya
AU - Kuribayashi, Takahiro
AU - Suzuki, Akio
N1 - Funding Information:
The synchrotron X-ray diffraction experiments were conducted at the Photon Factory, KEK (Proposal number 2018G023). This work was supported by the Itoh Science Foundation, the JSPS Japanese-German Graduate Externship and the JSPS KAKENHI Grant Numbers JP15H05828, JP19H01985, JP19K21890, JP17H04860.
Funding Information:
This work was supported by JSPS: [Grant Number JP15H05828,JP17H04860,JP19H01985,JP19K21890]. The synchrotron X-ray diffraction experiments were conducted at the Photon Factory, KEK (Proposal number 2018G023). This work was supported by the Itoh Science Foundation, the JSPS Japanese-German Graduate Externship and the JSPS KAKENHI Grant Numbers JP15H05828, JP19H01985, JP19K21890, JP17H04860.
Publisher Copyright:
© 2021 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2021
Y1 - 2021
N2 - In-situ X-ray diffraction measurements of ScOOH were conducted under high pressure and temperature conditions up to 11 GPa and 900 K to understand its phase transitions. As the pressure increased, α-ScOOH, InOOH-type ScOOH, and YbOOH-type ScOOH were observed. The experimental results indicate that the boundaries between α-ScOOH and InOOH-type ScOOH, and between InOOH-type and YbOOH-type ScOOH are represented by the following linear equations: P(GPa) = (0.0009 ± 0.0015) × [T(K)–700] + 4.33 ± 0.04 and P(GPa) = (–0.0029 ± 0.0002) × [T(K)–800] + 8.1 ± 0.3, respectively. By using a least-squares fit of the second-order Birch–Murnaghan equation of state (EoS) to the experimental compression data, the EoS parameters of the three phases of ScOOH at 400 K were obtained. The volume change of the transition from α-ScOOH to InOOH-type ScOOH is ∼3.9% at 4 GPa and 400 K, while the volume change of the transition from InOOH-type to YbOOH-type ScOOH is ∼7.6% at 9 GPa and 400 K.
AB - In-situ X-ray diffraction measurements of ScOOH were conducted under high pressure and temperature conditions up to 11 GPa and 900 K to understand its phase transitions. As the pressure increased, α-ScOOH, InOOH-type ScOOH, and YbOOH-type ScOOH were observed. The experimental results indicate that the boundaries between α-ScOOH and InOOH-type ScOOH, and between InOOH-type and YbOOH-type ScOOH are represented by the following linear equations: P(GPa) = (0.0009 ± 0.0015) × [T(K)–700] + 4.33 ± 0.04 and P(GPa) = (–0.0029 ± 0.0002) × [T(K)–800] + 8.1 ± 0.3, respectively. By using a least-squares fit of the second-order Birch–Murnaghan equation of state (EoS) to the experimental compression data, the EoS parameters of the three phases of ScOOH at 400 K were obtained. The volume change of the transition from α-ScOOH to InOOH-type ScOOH is ∼3.9% at 4 GPa and 400 K, while the volume change of the transition from InOOH-type to YbOOH-type ScOOH is ∼7.6% at 9 GPa and 400 K.
KW - ScOOH
KW - high pressure
KW - in-situ X-ray observation
KW - phase transition
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U2 - 10.1080/08957959.2021.1964495
DO - 10.1080/08957959.2021.1964495
M3 - Article
AN - SCOPUS:85112576634
SN - 0895-7959
VL - 41
SP - 275
EP - 289
JO - High Pressure Research
JF - High Pressure Research
IS - 3
ER -