Equation of state of hexagonal boron nitride

被引：26

作者：

Fuchizaki, Kazuhiro ^{[1
]}

Nakamichi, Takeshi ^{[1
]}

Saitoh, Hiroyuki ^{[2
]}

Katayama, Yoshinori ^{[2
]}

机构：

[1] Ehime Univ, Dept Phys, Matsuyama, Ehime 7908577, Japan

[2] Japan Atom Energy Agcy, Synchrotron Radiat Res Ctr, Mikazuki, Hyogo 6795148, Japan

来源：

SOLID STATE COMMUNICATIONS | 2008年 / 148卷 / 9-10期

关键词：

Thermodynamic properties; High pressure; Synchrotron radiation;

D O I：

10.1016/j.ssc.2008.09.031

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Diffraction data from hexagonal boron nitride compiled through in situ synchrotron x-ray measurements under pressures and temperatures up to about 8 GPa and 1000 K, respectively, were analyzed in the light of Birch-Murnaghan's and Parsafar-Mason's equations of state. The isothermal bulk moduli at ambient conditions obtained from these equations almost coincide. However, the value, about 20 GPa, is appreciably small compared to the one reported previously. The x-ray diffraction patterns by which the current result is justified are presented. The possible origin of a large discrepancy in the values is discussed. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：390 / 394

页数：5

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