Soft x-ray diffraction of striated muscle
S.F. Fan, W.B. Yun, et al.
Proceedings of SPIE 1989
The energy spacing of spin- and valley-split energy levels in strained Si quantum wells is determined using tilted-magnetic-field Shubnikov - de Haas measurements. The effective Lande g-factor, g*, is determined both as a function of electron sheet concentration, ns, and Landau level occupation number, v. The value of g* is determined from the angle at which the longitudinal magnetoresistance minima of adjacent spin-split Landau levels are equal. For the coincidence of the v = 6 and v = 8 levels, g* increases from 2.9 ± 0.1 to 3.8 ± 0.2 as ns is decreased from 5.9 × 1011 cm-2 to 4.4 × 1011 cm-2 at T = 0.4 K. In the same sample, with fixed electron concentration of ns = 4.1 × 1011 cm-2, g* ≈ 3.5 for v ≳ 10, and oscillates between average values of 2.6 ± 0.1 and 4.2 ± 0.2, for lower values of v. The magnitude of the valley splittings has also been investigated; for a perpendicular magnetic field of ∼ 2.8 T, a splitting of 52 ± 11 μe is determined, which is several times smaller than values for Si inversion layers reported in the literature.
S.F. Fan, W.B. Yun, et al.
Proceedings of SPIE 1989
Ellen J. Yoffa, David Adler
Physical Review B
William Hinsberg, Joy Cheng, et al.
SPIE Advanced Lithography 2010
Hiroshi Ito, Reinhold Schwalm
JES