Incommensurate Structure of Phosphorus Phase IV

Hiroshi Fujihisa, Yuichi Akahama, Haruki Kawamura, Yasuo Ohishi, Yoshito Gotoh, Hiroshi Yamawaki, Mami Sakashita, Satoshi Takeya, and Kazumasa Honda
Phys. Rev. Lett. 98, 175501 – Published 23 April 2007

Abstract

There are six known phases for phosphorus at room temperature under high pressure. Only the structure of phase IV, which exists from 107 GPa to 137 GPa, remains unsolved. We performed a powder x-ray diffraction experiment and a Rietveld analysis and successfully determined its structure to be an incommensurately modulated structure by only 1 site of atomic position. High-pressure phases of halogens and chalcogens have previously been shown to have a similar modulated structure; however, phosphorus phase IV is different from them and was shown to be the third case.

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  • Received 23 December 2006

DOI:https://doi.org/10.1103/PhysRevLett.98.175501

©2007 American Physical Society

Authors & Affiliations

Hiroshi Fujihisa1, Yuichi Akahama2, Haruki Kawamura2, Yasuo Ohishi3, Yoshito Gotoh1, Hiroshi Yamawaki1, Mami Sakashita1, Satoshi Takeya1, and Kazumasa Honda1

  • 1National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
  • 2Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako-gun, Hyogo 678-1297, Japan
  • 3Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Mikazuki, Sayo-gun, Hyogo 679-5198, Japan

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Issue

Vol. 98, Iss. 17 — 27 April 2007

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