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Title: Study on Electronic States of Solids Under High Pressure by Infrared Synchrotron Radiation

Abstract

Recent electrical resistivity measurements under high pressure revealed that materials with strongly correlated electrons exhibit many interesting physical properties such as a stabilization of insulating phase, generation of unconventional superconductivity, and so on. However, there seems to be no attempt by optical measurements to study directly the change in the electronic states from metallic phase to insulating one under high pressure in GPa range because of the difficulty in experiments in the far-infrared region. The difficulty is mainly caused by the insufficiency in the brightness of conventional black body sources. SPring-8 supplies a more collimated and brilliant infrared beam to the end station than conventional thermal sources, and then make possible a spectromicroscopic measurement under high pressures above 10 GPa in the far-infrared region. In this paper, we report recent results of the optical study on several kinds of solids which exhibit a cross-over change in the electronic states under high pressure.

Authors:
;  [1];  [2];  [3]
  1. Graduate School of Science and Technology, Kobe University, kobe 657-8501 (Japan)
  2. Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581 (Japan)
  3. RIKEN/SPring-8, Koto 1-1-1, Sayo-gun, Hyogo 679-5148 (Japan)
Publication Date:
OSTI Identifier:
21056953
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 902; Journal Issue: 1; Conference: 2. international symposium on portable synchrotron light sources and advanced applications, Shiga (Japan), 15-17 Jan 2007; Other Information: DOI: 10.1063/1.2723625; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ELECTRON CORRELATION; ELECTRONIC STRUCTURE; FAR INFRARED RADIATION; METALS; PRESSURE DEPENDENCE; PRESSURE RANGE GIGA PA; SOLIDS; SPRING-8 STORAGE RING; SUPERCONDUCTIVITY; SYNCHROTRON RADIATION

Citation Formats

Nanba, T., Irizawa, A., Chen, L., and Matsunami, M. Study on Electronic States of Solids Under High Pressure by Infrared Synchrotron Radiation. United States: N. p., 2007. Web. doi:10.1063/1.2723625.
Nanba, T., Irizawa, A., Chen, L., & Matsunami, M. Study on Electronic States of Solids Under High Pressure by Infrared Synchrotron Radiation. United States. doi:10.1063/1.2723625.
Nanba, T., Irizawa, A., Chen, L., and Matsunami, M. Fri . "Study on Electronic States of Solids Under High Pressure by Infrared Synchrotron Radiation". United States. doi:10.1063/1.2723625.
@article{osti_21056953,
title = {Study on Electronic States of Solids Under High Pressure by Infrared Synchrotron Radiation},
author = {Nanba, T. and Irizawa, A. and Chen, L. and Matsunami, M.},
abstractNote = {Recent electrical resistivity measurements under high pressure revealed that materials with strongly correlated electrons exhibit many interesting physical properties such as a stabilization of insulating phase, generation of unconventional superconductivity, and so on. However, there seems to be no attempt by optical measurements to study directly the change in the electronic states from metallic phase to insulating one under high pressure in GPa range because of the difficulty in experiments in the far-infrared region. The difficulty is mainly caused by the insufficiency in the brightness of conventional black body sources. SPring-8 supplies a more collimated and brilliant infrared beam to the end station than conventional thermal sources, and then make possible a spectromicroscopic measurement under high pressures above 10 GPa in the far-infrared region. In this paper, we report recent results of the optical study on several kinds of solids which exhibit a cross-over change in the electronic states under high pressure.},
doi = {10.1063/1.2723625},
journal = {AIP Conference Proceedings},
number = 1,
volume = 902,
place = {United States},
year = {Fri Mar 30 00:00:00 EDT 2007},
month = {Fri Mar 30 00:00:00 EDT 2007}
}