On the Phonon Drag Effect Contribution to Thermomagnetic Phenomena

The Seebeck coefficient of P-doped ultrathin Si-on-insulator (SOI) layers is investigated for the application to a highly-sensitive thermopile infrared photodetector. It is found that the Seebeck coefficient originating from the phonon drag is significant in the lightly doped region and depends on the carrier concentration with increasing carrier concentration above ~5×1018 cm-3. On the basis of Seebeck coefficient calculations considering both electron and phonon distribution, the phonon-drag part of SOI Seebeck coefficient is mainly governed by the phonon transport, in which the phonon-phonon scattering process is dominant rather than the crystal boundary scattering even in the SOI layer with a thickness of 10 nm. This fact suggests that the phonon-drag Seebeck coefficient is influenced by the phonon modes different from the thermal conductivity.

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Positive Phonon Drag Effect in the Nernst Coefficient of CdS

Journal of the Physical Society of Japan ◽

10.1143/jpsj.20.633 ◽

1965 ◽

Vol 20 (4) ◽

pp. 633-634 ◽

Cited By ~ 4

Author(s):

Yukio Onodera

Keyword(s):

Phonon Drag ◽

Drag Effect

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Optical and electrical properties and phonon drag effect in low temperature TEP measurements of AgSbSe2thin films

Journal of Semiconductors ◽

10.1088/1674-4926/35/5/052001 ◽

2014 ◽

Vol 35 (5) ◽

pp. 052001 ◽

Cited By ~ 1

Author(s):

T Namitha Asokan ◽

K S Urmila ◽

Rajani Jacob ◽

Rachel Reena Philip ◽

G S Okram ◽

...

Keyword(s):

Electrical Properties ◽

Low Temperature ◽

Optical And Electrical Properties ◽

Phonon Drag ◽

Drag Effect

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Phonon Drag Effect in p-Type InSb

physica status solidi (b) ◽

10.1002/pssb.19650120131 ◽

1965 ◽

Vol 12 (1) ◽

pp. 329-332 ◽

Cited By ~ 2

Author(s):

P. Byszewski ◽

M. Gronkowska ◽

J. Kołodziejczak

Keyword(s):

Phonon Drag ◽

Drag Effect ◽

P Type

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Anomalous Phonon Drag Effect in Graphite

Journal of the Physical Society of Japan ◽

10.1143/jpsj.43.1664 ◽

1977 ◽

Vol 43 (5) ◽

pp. 1664-1671 ◽

Cited By ~ 10

Author(s):

Ko Sugihara ◽

Hisashi Ohshima ◽

Kiyoshi Kawamura ◽

Takuro Tsuzuku

Keyword(s):

Phonon Drag ◽

Drag Effect

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Transport Equations Treating Phonon Drag Effect in a Strong Magnetic Field

Springer Series in Solid-State Sciences - Physics in High Magnetic Fields ◽

10.1007/978-3-642-81595-9_20 ◽

1981 ◽

pp. 174-177

Author(s):

Y. Ono

Keyword(s):

Magnetic Field ◽

Strong Magnetic Field ◽

Transport Equations ◽

Phonon Drag ◽

Drag Effect

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PHONON-DRAG EFFECT OF ULTRA-THIN FeSi2 AND MnSi1.7/FeSi2 FILMS

Modern Physics Letters B ◽

10.1142/s0217984911027078 ◽

2011 ◽

Vol 25 (22) ◽

pp. 1829-1838 ◽

Cited By ~ 6

Author(s):

Q. R. HOU ◽

B. F. GU ◽

Y. B. CHEN ◽

Y. J. HE

Keyword(s):

Electrical Resistivity ◽

Seebeck Coefficient ◽

Single Crystals ◽

Thermoelectric Power ◽

Power Factor ◽

Low Temperatures ◽

Room Temperature ◽

Phonon Drag ◽

Drag Effect ◽

Thermoelectric Power Factor

Phonon-drag effect usually occurs in single crystals at very low temperatures (10–200 K). Strong phonon-drag effect is observed in ultra-thin β- FeSi 2 films at around room temperature. The Seebeck coefficient of a 23 nm-thick β- FeSi 2 film can reach -1.375 mV/K at 343 K. However, the thermoelectric power factor of the film is still small, only 0.42×10-3 W/m-K2, due to its large electrical resistivity. When a 27 nm-thick MnSi 1.7 film with low electrical resistivity is grown on it, the thermoelectric power factor of the MnSi 1.7 film can reach 1.5×10-3 W/m-K2 at around room temperature. This value is larger than that of bulk MnSi 1.7 material in the same temperature range.

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