Hall effect of a linear-chain metal: NbSe3

N. P. Ong; P. Monceau

doi:10.1016/0038-1098(78)91294-2

Hall effect of a linear-chain metal: NbSe₃

N. P. Ong, P. Monceau

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

60 Scopus citations

Abstract

We present measurements of the low-field Hall constant R_H as a function of field and temperature in the linear-chain metal NbSe₃, The data range from 2 K to 200 K in temperature and up to 15 kG in field. At the two phase transitions T₁ (142 K) and T₂ (58 K) R_H shows an abrupt increase in magnitude but no change in sign. Below 30 K R_H becomes strongly field dependent. The zero-field-limit R_H changes from n-type to p-type at 15 K. It is argued that the results are consistent with a two-band model in which the difference in population p - n is equal to 3 × 10¹⁸ cm^-3 below T₂. The hall data are also consistent with a model in which both a loss of carriers and a drastic change in the conductivity anisotropy occur at T₁ and T₂ and lend support to the charge-density-wave hypothesis which has been used to characterize the two transitions.

Original language	English (US)
Pages (from-to)	487-491
Number of pages	5
Journal	Solid State Communications
Volume	26
Issue number	8
DOIs	https://doi.org/10.1016/0038-1098(78)91294-2
State	Published - May 1978
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/0038-1098(78)91294-2

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@article{cbf52dd43595454f92a06ea55fa32fee,

title = "Hall effect of a linear-chain metal: NbSe3",

abstract = "We present measurements of the low-field Hall constant RH as a function of field and temperature in the linear-chain metal NbSe3, The data range from 2 K to 200 K in temperature and up to 15 kG in field. At the two phase transitions T1 (142 K) and T2 (58 K) RH shows an abrupt increase in magnitude but no change in sign. Below 30 K RH becomes strongly field dependent. The zero-field-limit RH changes from n-type to p-type at 15 K. It is argued that the results are consistent with a two-band model in which the difference in population p - n is equal to 3 × 1018 cm-3 below T2. The hall data are also consistent with a model in which both a loss of carriers and a drastic change in the conductivity anisotropy occur at T1 and T2 and lend support to the charge-density-wave hypothesis which has been used to characterize the two transitions.",

author = "Ong, {N. P.} and P. Monceau",

note = "Funding Information: Acknowledgement — This work was performed under a grant (N000l4—l7—C—0473) from the office of Naval Research, and was made possible by the expert sample prepartion of Jim Savage.",

year = "1978",

month = may,

doi = "10.1016/0038-1098(78)91294-2",

language = "English (US)",

volume = "26",

pages = "487--491",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd",

number = "8",

}

TY - JOUR

T1 - Hall effect of a linear-chain metal

T2 - NbSe3

AU - Ong, N. P.

AU - Monceau, P.

N1 - Funding Information: Acknowledgement — This work was performed under a grant (N000l4—l7—C—0473) from the office of Naval Research, and was made possible by the expert sample prepartion of Jim Savage.

PY - 1978/5

Y1 - 1978/5

N2 - We present measurements of the low-field Hall constant RH as a function of field and temperature in the linear-chain metal NbSe3, The data range from 2 K to 200 K in temperature and up to 15 kG in field. At the two phase transitions T1 (142 K) and T2 (58 K) RH shows an abrupt increase in magnitude but no change in sign. Below 30 K RH becomes strongly field dependent. The zero-field-limit RH changes from n-type to p-type at 15 K. It is argued that the results are consistent with a two-band model in which the difference in population p - n is equal to 3 × 1018 cm-3 below T2. The hall data are also consistent with a model in which both a loss of carriers and a drastic change in the conductivity anisotropy occur at T1 and T2 and lend support to the charge-density-wave hypothesis which has been used to characterize the two transitions.

AB - We present measurements of the low-field Hall constant RH as a function of field and temperature in the linear-chain metal NbSe3, The data range from 2 K to 200 K in temperature and up to 15 kG in field. At the two phase transitions T1 (142 K) and T2 (58 K) RH shows an abrupt increase in magnitude but no change in sign. Below 30 K RH becomes strongly field dependent. The zero-field-limit RH changes from n-type to p-type at 15 K. It is argued that the results are consistent with a two-band model in which the difference in population p - n is equal to 3 × 1018 cm-3 below T2. The hall data are also consistent with a model in which both a loss of carriers and a drastic change in the conductivity anisotropy occur at T1 and T2 and lend support to the charge-density-wave hypothesis which has been used to characterize the two transitions.

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U2 - 10.1016/0038-1098(78)91294-2

DO - 10.1016/0038-1098(78)91294-2

M3 - Article

AN - SCOPUS:0000784403

SN - 0038-1098

VL - 26

SP - 487

EP - 491

JO - Solid State Communications

JF - Solid State Communications

IS - 8

ER -

Hall effect of a linear-chain metal: NbSe₃

Abstract

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