Charge density wave instabilities in the family of monophosphate tungsten bronzes: (PO2)4(WO3)2m

A. Ottolenghi; P. Foury; J. P. Pouget; Z. S. Teweldemedhin; M. Greenblatt; D. Groult; J. Marcus; C. Schlenker

doi:10.1016/0379-6779(94)02859-W

Charge density wave instabilities in the family of monophosphate tungsten bronzes: (PO₂)₄(WO₃)_2m

A. Ottolenghi, P. Foury, J. P. Pouget, Z. S. Teweldemedhin, M. Greenblatt, D. Groult, J. Marcus, C. Schlenker

School of Arts and Sciences, Chemistry & Chemical Biology

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	1301-1302
Number of pages	2
Journal	Synthetic Metals
Volume	70
Issue number	1-3
DOIs	https://doi.org/10.1016/0379-6779(94)02859-W
State	Published - Mar 15 1995

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/0379-6779(94)02859-W

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title = "Charge density wave instabilities in the family of monophosphate tungsten bronzes: (PO2)4(WO3)2m",

abstract = "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 (MPTBp) 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.",

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doi = "10.1016/0379-6779(94)02859-W",

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T1 - Charge density wave instabilities in the family of monophosphate tungsten bronzes

T2 - (PO2)4(WO3)2m

AU - Ottolenghi, A.

AU - Foury, P.

AU - Pouget, J. P.

AU - Teweldemedhin, Z. S.

AU - Greenblatt, M.

AU - Groult, D.

AU - Marcus, J.

AU - Schlenker, C.

PY - 1995/3/15

Y1 - 1995/3/15

N2 - 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 (MPTBp) 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.

AB - 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 (MPTBp) 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.

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Charge density wave instabilities in the family of monophosphate tungsten bronzes: (PO₂)₄(WO₃)_2m

Abstract

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