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Hole effective masses in 6H-SiC from optically detected cyclotron resonance
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, Materials Science .
2002 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, Vol. 66, no 4Article in journal (Refereed) Published
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. Similar to 4H-SiC, the hole effective mass in 6H polytype is also found to be isotropic in the basal plane with the transverse mass m(hperpendicular to)=(0.66+/-0.02) m(0). The hole effective mass component along the c-axis is determined as m(hparallel to)=(1.85+/-0.03) m(0). From the obtained data we can estimate the electron effective mass component along the c-axis to be in the range 3-6 m(0) depending on the anisotropy of the electron effective mass in the basal plane.

Place, publisher, year, edition, pages
2002. Vol. 66, no 4
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-47862DOI: 10.1103/PhysRevB.66.045304OAI: oai:DiVA.org:liu-47862DiVA: diva2:268758
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2009-11-05

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Nguyen, Tien SonHallin, ChristerJanzén, Erik

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Engineering and Technology

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