科研之友
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摘要
We have determined effective mass parameters for ultrapure diamond by time-resolved cyclotron resonance of optically excited carriers. The transverse and longitudinal electron masses are found to be m(t)/m(0) = 0.280(2) and m(t)/m(0) = 1.56( 2), where m(0) is the free-electron mass. The Luttinger parameters are extracted as gamma(1) = 2.67(2), gamma(2) = -0.40(2), and gamma(3) = 0.68(2), which give the light- and heavy-hole bands with considerable anisotropy and the split-off hole mass. The resonance widths indicate scattering times longer than 100 ps and carrier mobilities as high as 10(6) cm(2) V-1 s(-1) at 10 K.
- 出版日期2013-7-26
