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- W2078459407 abstract "Abstract From transverse or longitudinal magnetoresistance and Hall coefficient measurements performed on three samples cut in a single crystal of p -type GaSb along selected crystallographic directions, we derive six equations involving the geometric parameters of the isoenergetic surfaces. The generally admitted valence band model for GaSb is the nonquadratic model proposed by Lax and Mavroides in the case of Germanium and Silicon. We find that this model cannot account simultaneously for all the galvanomagnetic phenomena observed on p -type GaSb, in particular for the longitudinal magnetoresistance. The existence of a linear k term in the enery expression lifts the degeneracy so that the energy maxima of the valence band are not at k (000). We show then that, at 77°K, the difference between the level of the valence band maxima and the value of the energy at k (000) may be large enough to consider the existence of a multiellipsoidal structure. This structure accounts for all the observed galvanomagentic phenomena. The ellipsoids are found along (100) and (111) directions for light and heavy holes respectively. We calculate the corresponding anisotropy coefficients: K 2 =1·66 and K 1 =3." @default.
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- W2078459407 date "1973-12-01" @default.
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- W2078459407 title "Influence of the linear k term on the shape of the isoenergetic surfaces in p-type GaSb, deduced from galvanomagnetic measurements" @default.
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- W2078459407 doi "https://doi.org/10.1016/s0022-3697(73)80070-8" @default.
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