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Hole and electron effective masses in 6H-SiC studied by optically detected cyclotron resonance
Linkoping Univ, Dept Phys & Measurement Technol, SE-58183 Linkoping, Sweden ABB Corp Res, SE-72178 Vasteras, Sweden.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials.
2002 (English)In: Materials Science Forum(ISSN 0255-5476), Vols. 389-393, Trans Tech Publications , 2002, Vol. 389-3, 525-528 p.Conference paper, Published paper (Refereed)
Abstract [en]

We used optically detected cyclotron resonance (ODCR) at X-band frequency (similar to9.23 GHz) to study the hole effective masses in 6H-SiC. In high-purity 6H-SiC layers, two well-resolved cyclotron resonance (CR) peaks have been observed and attributed to the CR of electrons and holes. In 6H-SiC, the uppermost valence band near its maximum is found to be parabolic with the hole transverse effective mass m(hperpendicular to)=(0.66 +/- 0.02) m(0) and the longitudinal effective mass component M-hparallel to =(1.85 +/- 0.03) m(0). The average of the electron effective mass components in the basal plane-the transversal mass-is determined as m(eperpendicular to)=(0.48 0.02) m(0). With the obtained OJDCR data we can estimate the longitudinal electron effective mass to be in the range 3-6 m(0) depending on the anisotropy of the effective mass in the basal plane.

Place, publisher, year, edition, pages
Trans Tech Publications , 2002. Vol. 389-3, 525-528 p.
Keyword [en]
band structure, hole and electron effective masses, optically detected cyclotron resonance, polaron effect
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-48812OAI: oai:DiVA.org:liu-48812DiVA: diva2:269708
Conference
ICSCRM2001
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2010-12-15

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Nguyen, Tien SonHallin, ChristerJanzén, Erik

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