Specific heat anomalies in the quasi two-dimensional monophosphate tungsten bronzes KxP4W8O32

V. Bondarenko; J. W. Brill; J. Dumas; C. Schlenker

doi:10.1016/j.ssc.2003.10.014

Specific heat anomalies in the quasi two-dimensional monophosphate tungsten bronzes K_xP₄W₈O₃₂

V. Bondarenko, J. W. Brill, J. Dumas, C. Schlenker

Producción científica: Article › revisión exhaustiva

6 Citas (Scopus)

Resumen

The monophosphate tungsten bronzes K_xP₄W ₈O₃₂ (0.75 < x < 2) are quasi-two-dimensional conductors which show electronic transitions at a critical temperature T _c depending on the concentration of the alkali metal. The phase diagram shows a maximum at T_c = 170 K for x = 1.30. We report specific heat measurements in the range 120-190 K. The thermal anomalies found at the transition temperature are larger than in conventional charge density wave materials. This corroborates that the transition is not a 'pure' charge density wave transition and that a structural transition dominates the instability.

Idioma original	English
Páginas (desde-hasta)	211-215
Número de páginas	5
Publicación	Solid State Communications
Volumen	129
N.º	4
DOI	https://doi.org/10.1016/j.ssc.2003.10.014
Estado	Published - ene 2004

Nota bibliográfica

Funding Information:
The authors wish to thank D. Groult for the crystal growth, S. Drouard for the characterization and transport studies of the crystals measured in this work, P. Foury and J.P. Pouget for helpful discussions. One of us (J.W.B.) acknowledges the support of the US National Science Foundation (Grant #DMR-0100572).

Financiación

The authors wish to thank D. Groult for the crystal growth, S. Drouard for the characterization and transport studies of the crystals measured in this work, P. Foury and J.P. Pouget for helpful discussions. One of us (J.W.B.) acknowledges the support of the US National Science Foundation (Grant #DMR-0100572).

Financiadores	Número del financiador
US National Science Foundation	-0100572

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

Acceder al documento

10.1016/j.ssc.2003.10.014

Otros archivos y enlaces

Citar esto

@article{b4a8f5469c52408bb59c1079dd9c0174,

title = "Specific heat anomalies in the quasi two-dimensional monophosphate tungsten bronzes KxP4W8O32",

abstract = "The monophosphate tungsten bronzes KxP4W 8O32 (0.75 < x < 2) are quasi-two-dimensional conductors which show electronic transitions at a critical temperature T c depending on the concentration of the alkali metal. The phase diagram shows a maximum at Tc = 170 K for x = 1.30. We report specific heat measurements in the range 120-190 K. The thermal anomalies found at the transition temperature are larger than in conventional charge density wave materials. This corroborates that the transition is not a 'pure' charge density wave transition and that a structural transition dominates the instability.",

keywords = "A. Monophosphate tungsten bronzes, D. Charge density waves, D. Specific heat",

author = "V. Bondarenko and Brill, \{J. W.\} and J. Dumas and C. Schlenker",

note = "Funding Information: The authors wish to thank D. Groult for the crystal growth, S. Drouard for the characterization and transport studies of the crystals measured in this work, P. Foury and J.P. Pouget for helpful discussions. One of us (J.W.B.) acknowledges the support of the US National Science Foundation (Grant \#DMR-0100572).",

year = "2004",

month = jan,

doi = "10.1016/j.ssc.2003.10.014",

language = "English",

volume = "129",

pages = "211--215",

number = "4",

}

TY - JOUR

T1 - Specific heat anomalies in the quasi two-dimensional monophosphate tungsten bronzes KxP4W8O32

AU - Bondarenko, V.

AU - Brill, J. W.

AU - Dumas, J.

AU - Schlenker, C.

N1 - Funding Information: The authors wish to thank D. Groult for the crystal growth, S. Drouard for the characterization and transport studies of the crystals measured in this work, P. Foury and J.P. Pouget for helpful discussions. One of us (J.W.B.) acknowledges the support of the US National Science Foundation (Grant #DMR-0100572).

PY - 2004/1

Y1 - 2004/1

N2 - The monophosphate tungsten bronzes KxP4W 8O32 (0.75 < x < 2) are quasi-two-dimensional conductors which show electronic transitions at a critical temperature T c depending on the concentration of the alkali metal. The phase diagram shows a maximum at Tc = 170 K for x = 1.30. We report specific heat measurements in the range 120-190 K. The thermal anomalies found at the transition temperature are larger than in conventional charge density wave materials. This corroborates that the transition is not a 'pure' charge density wave transition and that a structural transition dominates the instability.

AB - The monophosphate tungsten bronzes KxP4W 8O32 (0.75 < x < 2) are quasi-two-dimensional conductors which show electronic transitions at a critical temperature T c depending on the concentration of the alkali metal. The phase diagram shows a maximum at Tc = 170 K for x = 1.30. We report specific heat measurements in the range 120-190 K. The thermal anomalies found at the transition temperature are larger than in conventional charge density wave materials. This corroborates that the transition is not a 'pure' charge density wave transition and that a structural transition dominates the instability.

KW - A. Monophosphate tungsten bronzes

KW - D. Charge density waves

KW - D. Specific heat

UR - http://www.scopus.com/inward/record.url?scp=0344012104&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0344012104&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2003.10.014

DO - 10.1016/j.ssc.2003.10.014

M3 - Article

AN - SCOPUS:0344012104

SN - 0038-1098

VL - 129

SP - 211

EP - 215

JO - Solid State Communications

JF - Solid State Communications

IS - 4

ER -