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Thermopower measurements in 4H-SiC and theoretical calculations considering the phonon drag effect
Vilnius State Univ, Inst Mat Res & Appl Sci, LT-2054 Vilnius, Lithuania Univ Halle Wittenberg, FB Phys, DE-06120 Halle, Germany Tallinn Tech Univ, Inst Elect, EE-19086 Tallinn, Estonia Royal Inst Technol, SE-16440 Kista, Sweden Linkoping Univ, Dept Phys & Measurement Technol, SE-58183 Linkoping, Sweden.
Vilnius State Univ, Inst Mat Res & Appl Sci, LT-2054 Vilnius, Lithuania Univ Halle Wittenberg, FB Phys, DE-06120 Halle, Germany Tallinn Tech Univ, Inst Elect, EE-19086 Tallinn, Estonia Royal Inst Technol, SE-16440 Kista, Sweden Linkoping Univ, Dept Phys & Measurement Technol, SE-58183 Linkoping, Sweden.
Vilnius State Univ, Inst Mat Res & Appl Sci, LT-2054 Vilnius, Lithuania Univ Halle Wittenberg, FB Phys, DE-06120 Halle, Germany Tallinn Tech Univ, Inst Elect, EE-19086 Tallinn, Estonia Royal Inst Technol, SE-16440 Kista, Sweden Linkoping Univ, Dept Phys & Measurement Technol, SE-58183 Linkoping, Sweden.
Vilnius State Univ, Inst Mat Res & Appl Sci, LT-2054 Vilnius, Lithuania Univ Halle Wittenberg, FB Phys, DE-06120 Halle, Germany Tallinn Tech Univ, Inst Elect, EE-19086 Tallinn, Estonia Royal Inst Technol, SE-16440 Kista, Sweden Linkoping Univ, Dept Phys & Measurement Technol, SE-58183 Linkoping, Sweden.
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2001 (English)In: Materials Science Forum, Vols. 353-356, 2001, Vol. 353-3, 491-494 p.Conference paper, Published paper (Refereed)
Abstract [en]

The Seebeck coefficient study in a heavily nitrogen-doped n-type 4H-SiC epilayer in the direction perpendicular to c-axis is presented. The Seebeck coefficient steeply increases from 0.56 mV/K to 1.7 mV/K with decreasing temperature in the range 400-80 R. This behavior is explained by the phonon drag effect. An approach to the theoretical modeling of the phonon drag effect is discussed and simulation of the Seebeck coefficient temperature-dependence is displayed.

Place, publisher, year, edition, pages
2001. Vol. 353-3, 491-494 p.
Keyword [en]
phonon-drag effect, seebeck coefficient, thermopower
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-49274OAI: oai:DiVA.org:liu-49274DiVA: diva2:270170
Conference
ECSCRM2000
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2010-12-08

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Syväjärvi, MikaelYakimova, Rositsa

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