@article{3731840ba43c4ff5838b20f2cffbf562,
title = "Variations of lattice constants and thermal expansion coefficients of indium at high pressure and high temperature",
abstract = "The effects of pressure and temperature on the lattice constants and thermal expansion coefficients of Indium were studied up to 18.6 GPa and 506 K based on in situ X-ray diffraction method with an externally heated diamond anvil cell. The results show that the measured axial ratio (c/a) decreases with increasing temperature and its temperature dependence decreases with increasing pressure. The thermal expansion coefficient of the a-axis decreases with increasing pressure up to 7 GPa and remains almost constant above 7 GPa, whereas that of the c-axis increases monotonously with pressure and changes from negative to positive at around 7 GPa. The observed behavior suggests that temperature reduces the tetragonal distortion on the lattice, and its effect is dominant below 7 GPa; in contrast, pressure enhances lattice distortion, and tends to have a stronger effect above 7 GPa.",
keywords = "Indium, externally heated diamond anvil cell, lattice constant, thermal expansion",
author = "Yusaku Takubo and Hidenori Terasaki and Tadashi Kondo and Shingo Mitai and Seiji Kamada and Takumi Kikegawa and Akihiko Machida",
note = "Funding Information: The authors acknowledge S. Urakawa for the constructive suggestions and technical assistance at the SPring-8 synchrotron radiation facility and also thank S. Hiromi and Y. Okawa for assisting in XRD measurement at Photon Factory-Advanced Ring. The experiments have been performed under contract of the Photon Factory Program Advisory Committee (proposal numbers: 2014G113, 2016G177) and of the SPring-8 facility (proposal numbers: 2016A3787, 2017B3782). A part of this work was performed under the Shared Use Program of JAEA and QST Facilities (proposal numbers: 2016A-E22, 2017B-H11) supported by JAEA, QST Advanced Characterization Nanotechnology Platform as a program of {\textquoteright}Nanotechnology Platform{\textquoteright} of MEXT (proposal numbers: A-15-AE-0040, A-17-QS-0026). Funding Information: This work was partly supported by a Grant-in-Aid for Japan Society for the Promotion of Science (JSPS) Fellows to Y.T. [grant number 26 1795] and also by Grants-in-Aid for scientific research from the Ministry of Education, Sports, Science and Technology of the Japanese Government to H.T. [grant number 26247089]. The authors acknowledge S. Urakawa for the constructive suggestions and technical assistance at the SPring-8 synchrotron radiation facility and also thank S. Hiromi and Y. Okawa for assisting in XRD measurement at Photon Factory-Advanced Ring. The experiments have been performed under contract of the Photon Factory Program Advisory Committee (proposal numbers: 2014G113, 2016G177) and of the SPring-8 facility (proposal numbers: 2016A3787, 2017B3782). A part of this work was performed under the Shared Use Program of JAEA and QST Facilities (proposal numbers: 2016A-E22, 2017B-H11) supported by JAEA, QST Advanced Characterization Nanotechnology Platform as a program of 'Nanotechnology Platform' of MEXT (proposal numbers: A-15-AE-0040, A-17-QS-0026). Funding Information: This work was partly supported by a Grant-in-Aid for Japan Society for the Promotion of Science (JSPS) Fellows to Y.T. [grant number 26 1795] and also by Grants-in-Aid for scientific research from the Ministry of Education, Sports, Science and Technology of the Japanese Government to H.T. [grant number 26247089]. Publisher Copyright: {\textcopyright} 2018, {\textcopyright} 2018 Informa UK Limited, trading as Taylor & Francis Group.",
year = "2018",
month = oct,
day = "2",
doi = "10.1080/08957959.2018.1499903",
language = "English",
volume = "38",
pages = "406--413",
journal = "High Pressure Research",
issn = "0895-7959",
publisher = "Taylor and Francis Ltd.",
number = "4",
}