Phase transitions in Mn(Mo1-xWx)O4 oxides under the effect of high pressure and temperature

被引：7
|
作者：
Blanco-Gutierrez, Veronica [1 ]
Demourgues, Alain [1 ]
Lebreau, Eric [1 ]
Gaudon, Manuel [1 ]
机构：
[1] Univ Bordeaux, CNRS, ICMCB, 87 Ave Dr Albert Schweitzer, F-33608 Pessac, France
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2016年 / 253卷 / 10期
关键词：
MnMoO4; phase transitions; pressure; sensors; temperature; tungsten; wolframite; X-ray diffraction; BEHAVIOR;
D O I：
10.1002/pssb.201600397
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
ABO(4) compounds exhibit various phase transitions identified in the literature. The phase transitions between monoclinic -C-2/m and wolframite P-2/c structures of Mn(Mo1-xWx)O-4 compounds, which can be induced by pressure or temperature, are studied on the basis of X-ray diffraction analyses. The large optical contrast associated with both these structures and Mo/W environments can be exploited to propose efficient piezochromic sensors (thanks to the monoclinic to wolframite transition vs. pressure) and thermal sensors (thanks to the reverse transformation), the thermochromic temperature being able to be tuned via the Mo/W ratio. A(Mo,W)O-4 phase diagram: from wolframite to monoclinic compounds (drawn from the updated Bastide's diagram from Errandonea and Manjo ). (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：2043 / 2048
页数：6
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