Magnetotransport and specific heat properties in the charge density wave state of the quasi two-dimensional bronzes (PO2)4 (WO3)2m(M=4,6,7)

J. Lehmann; C. Schlenker; C. Letouzr; A. Rotger; J. Dumas; J. Marcus; Z. Teweldemedhin; M. Greenblatt

Magnetotransport and specific heat properties in the charge density wave state of the quasi two-dimensional bronzes (PO₂)₄ (WO₃)_2m(M=4,6,7)

J. Lehmann, C. Schlenker, C. Letouzr, A. Rotger, J. Dumas, J. Marcus, Z. Teweldemedhin, M. Greenblatt

Research output: Contribution to journal › Conference article › peer-review

Abstract

Hall effect and specific heat have been measured on single crystals of P₄W₈O₃₂, P₄W₁₂O₄₄ and P₄W₁₄O₅₀ The Hall constant is small in the high temperature normal state and |R_H| increases at the Peierls transitions, corroborating the existence of charge density wave gap opening. Specific heat data show that the Debye temperature is in the range 240 K-180 K. Anomalously large γ coefficients of the linear contribution to the specific heat are found. In the case of P₄W₁₄O₅₀, an anomaly found around 45 K provides values of the enthalpy and entropy changes at the low temperature transition.

Original language	English (US)
Pages (from-to)	243-246
Number of pages	4
Journal	Journal De Physique. IV : JP
Volume	3
Issue number	2
State	Published - Jul 1993
Externally published	Yes
Event	Proceedings of the International Workshop on Electronic Crystals (ECRYS 93) - Carry-le-Rouet, Fr Duration: Jun 2 1993 → Jun 4 1993

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Cite this

@article{bda0262f7d21444f88e5572f533abbeb,

title = "Magnetotransport and specific heat properties in the charge density wave state of the quasi two-dimensional bronzes (PO2)4 (WO3)2m(M=4,6,7)",

abstract = "Hall effect and specific heat have been measured on single crystals of P4W8O32, P4W12O44 and P4W14O50 The Hall constant is small in the high temperature normal state and |RH| increases at the Peierls transitions, corroborating the existence of charge density wave gap opening. Specific heat data show that the Debye temperature is in the range 240 K-180 K. Anomalously large γ coefficients of the linear contribution to the specific heat are found. In the case of P4W14O50, an anomaly found around 45 K provides values of the enthalpy and entropy changes at the low temperature transition.",

author = "J. Lehmann and C. Schlenker and C. Letouzr and A. Rotger and J. Dumas and J. Marcus and Z. Teweldemedhin and M. Greenblatt",

year = "1993",

month = jul,

language = "English (US)",

volume = "3",

pages = "243--246",

journal = "European Physical Journal: Special Topics",

issn = "1951-6355",

publisher = "Springer Verlag",

number = "2",

note = "Proceedings of the International Workshop on Electronic Crystals (ECRYS 93) ; Conference date: 02-06-1993 Through 04-06-1993",

}

TY - JOUR

T1 - Magnetotransport and specific heat properties in the charge density wave state of the quasi two-dimensional bronzes (PO2)4 (WO3)2m(M=4,6,7)

AU - Lehmann, J.

AU - Schlenker, C.

AU - Letouzr, C.

AU - Rotger, A.

AU - Dumas, J.

AU - Marcus, J.

AU - Teweldemedhin, Z.

AU - Greenblatt, M.

PY - 1993/7

Y1 - 1993/7

N2 - Hall effect and specific heat have been measured on single crystals of P4W8O32, P4W12O44 and P4W14O50 The Hall constant is small in the high temperature normal state and |RH| increases at the Peierls transitions, corroborating the existence of charge density wave gap opening. Specific heat data show that the Debye temperature is in the range 240 K-180 K. Anomalously large γ coefficients of the linear contribution to the specific heat are found. In the case of P4W14O50, an anomaly found around 45 K provides values of the enthalpy and entropy changes at the low temperature transition.

AB - Hall effect and specific heat have been measured on single crystals of P4W8O32, P4W12O44 and P4W14O50 The Hall constant is small in the high temperature normal state and |RH| increases at the Peierls transitions, corroborating the existence of charge density wave gap opening. Specific heat data show that the Debye temperature is in the range 240 K-180 K. Anomalously large γ coefficients of the linear contribution to the specific heat are found. In the case of P4W14O50, an anomaly found around 45 K provides values of the enthalpy and entropy changes at the low temperature transition.

UR - http://www.scopus.com/inward/record.url?scp=0027634364&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027634364&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0027634364

SN - 1951-6355

VL - 3

SP - 243

EP - 246

JO - European Physical Journal: Special Topics

JF - European Physical Journal: Special Topics

IS - 2

T2 - Proceedings of the International Workshop on Electronic Crystals (ECRYS 93)

Y2 - 2 June 1993 through 4 June 1993

ER -

Magnetotransport and specific heat properties in the charge density wave state of the quasi two-dimensional bronzes (PO₂)₄ (WO₃)_2m(M=4,6,7)

Abstract

All Science Journal Classification (ASJC) codes

Other files and links

Fingerprint

Cite this