Hole effective masses in 6H-SiC from optically detected cyclotron resonance
2002 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, Vol. 66, no 4Article in journal (Refereed) Published
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
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-47862DOI: 10.1103/PhysRevB.66.045304OAI: oai:DiVA.org:liu-47862DiVA: diva2:268758