Bolometric absorption spectra of doped TaS3

G. Minton; J. W. Brill

doi:10.1016/0038-1098(88)90895-2

Bolometric absorption spectra of doped TaS₃

G. Minton
, J. W. Brill

Producción científica: Article › revisión exhaustiva

9 Citas (Scopus)

Resumen

We have taken bolometric infrared spectra of the charge-density-wave conductor orthorhombic TaS₃, doped with niobium and titanium. For transverse polarization, the bolometric signal is roughly proportional to the absorptivity. Niobium doping (∼200 ppm) greatly increases the charge-density-wave depinning field and broadens the Peierls transition, while Ti doping (∼ 10 ppm) has negligible effect. Nevertheless, both types of samples have similar spectra: a large decrease of absorption above the Peierls gap (i.e. smearing of the absorption threshold) and no significant increase in absorption below the gap. The "midgap" absorption line at 500 cm^-1 is not affected by doping. Results are discussed in terms of the model of Tutto and Zawadowski.

Idioma original	English
Páginas (desde-hasta)	1069-1072
Número de páginas	4
Publicación	Solid State Communications
Volumen	65
N.º	10
DOI	https://doi.org/10.1016/0038-1098(88)90895-2
Estado	Published - mar 1988

Nota bibliográfica

Funding Information:
"Acknowledgements"-Wea ppreciate useful conversations with Dr. A. Zawadowski, the technical assistance of M.-Y. Chung, and the aid of 8. Jones and J. Kuhn of the Kentucky Energy Cabinet Laboratory in performing the Plasma mission Analysis. This research was funded in part by the National Science Foundation--Solid State Physics, Grant NumberD MR-8615463.

Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.

Financiación

"Acknowledgements"-Wea ppreciate useful conversations with Dr. A. Zawadowski, the technical assistance of M.-Y. Chung, and the aid of 8. Jones and J. Kuhn of the Kentucky Energy Cabinet Laboratory in performing the Plasma mission Analysis. This research was funded in part by the National Science Foundation--Solid State Physics, Grant NumberD MR-8615463.

Financiadores	Número del financiador
RAS - Institute of Solid State Physics	MR-8615463
National Science Foundation (NSF)

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/0038-1098(88)90895-2

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title = "Bolometric absorption spectra of doped TaS3",

abstract = "We have taken bolometric infrared spectra of the charge-density-wave conductor orthorhombic TaS3, doped with niobium and titanium. For transverse polarization, the bolometric signal is roughly proportional to the absorptivity. Niobium doping (∼200 ppm) greatly increases the charge-density-wave depinning field and broadens the Peierls transition, while Ti doping (∼ 10 ppm) has negligible effect. Nevertheless, both types of samples have similar spectra: a large decrease of absorption above the Peierls gap (i.e. smearing of the absorption threshold) and no significant increase in absorption below the gap. The {"}midgap{"} absorption line at 500 cm-1 is not affected by doping. Results are discussed in terms of the model of Tutto and Zawadowski.",

author = "G. Minton and Brill, \{J. W.\}",

note = "Funding Information: {"}Acknowledgements{"}-Wea ppreciate useful conversations with Dr. A. Zawadowski, the technical assistance of M.-Y. Chung, and the aid of 8. Jones and J. Kuhn of the Kentucky Energy Cabinet Laboratory in performing the Plasma mission Analysis. This research was funded in part by the National Science Foundation--Solid State Physics, Grant NumberD MR-8615463. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.",

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AU - Minton, G.

AU - Brill, J. W.

N1 - Funding Information: "Acknowledgements"-Wea ppreciate useful conversations with Dr. A. Zawadowski, the technical assistance of M.-Y. Chung, and the aid of 8. Jones and J. Kuhn of the Kentucky Energy Cabinet Laboratory in performing the Plasma mission Analysis. This research was funded in part by the National Science Foundation--Solid State Physics, Grant NumberD MR-8615463. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.

PY - 1988/3

Y1 - 1988/3

N2 - We have taken bolometric infrared spectra of the charge-density-wave conductor orthorhombic TaS3, doped with niobium and titanium. For transverse polarization, the bolometric signal is roughly proportional to the absorptivity. Niobium doping (∼200 ppm) greatly increases the charge-density-wave depinning field and broadens the Peierls transition, while Ti doping (∼ 10 ppm) has negligible effect. Nevertheless, both types of samples have similar spectra: a large decrease of absorption above the Peierls gap (i.e. smearing of the absorption threshold) and no significant increase in absorption below the gap. The "midgap" absorption line at 500 cm-1 is not affected by doping. Results are discussed in terms of the model of Tutto and Zawadowski.

AB - We have taken bolometric infrared spectra of the charge-density-wave conductor orthorhombic TaS3, doped with niobium and titanium. For transverse polarization, the bolometric signal is roughly proportional to the absorptivity. Niobium doping (∼200 ppm) greatly increases the charge-density-wave depinning field and broadens the Peierls transition, while Ti doping (∼ 10 ppm) has negligible effect. Nevertheless, both types of samples have similar spectra: a large decrease of absorption above the Peierls gap (i.e. smearing of the absorption threshold) and no significant increase in absorption below the gap. The "midgap" absorption line at 500 cm-1 is not affected by doping. Results are discussed in terms of the model of Tutto and Zawadowski.

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