CHARGE-DENSITY-WAVE INSTABILITIES IN THE FAMILY OF MONOPHOSPHATE TUNGSTEN BRONZES - (PO2)(4)(WO3)(2M)

被引：12
|
作者：
OTTOLENGHI, A
FOURY, P
POUGET, JP
TEWELDEMEDHIN, ZS
GREENBLATT, M
GROULT, D
MARCUS, J
SCHLENKER, C
机构：
[1] UNIV PARIS 11,TOPOL & DYNAM LAB,F-91405 ORSAY,FRANCE
[2] RUTGERS STATE UNIV,DEPT CHEM,PISCATAWAY,NJ 08855
[3] ISMRA UNIV,CRISMAT LAB,CNRS,URA 1318,F-14050 CAEN,FRANCE
[4] CNRS,ETUD PROPRIETES ELECTR SOLIDES LAB,F-38042 GRENOBLE 09,FRANCE
来源：
SYNTHETIC METALS | 1995年 / 70卷 / 1-3期
关键词：
D O I：
10.1016/0379-6779(94)02859-W
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The structural instabilities towards the formation of a charge density wave (CDW) ground state exhibited by the members of the family of monophosphate tungsten bronzes with pentagonal tunnels (MPTB(p)) of general formula (PO2)(4)(WO3)(2m) are studied for m=8,9. In the m=8 member two incommensurate CDW modulations are detected, but no long range order (LRO) is achieved. In the m=9 member two commensurate CDW modulations towards a LRO occurs. Evidence for a superstructure formation is also found in other members of large values of m. We emphasize the special role of the m=8 member which marks the borderline between incommensurate and commensurate CDW phase transitions.
引用
收藏
页码：1301 / 1302
页数：2
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