Shubnikov-de Haas Measurements in N-Type Pb_<1-x>Sn_xTe
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概要
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Relatively large n-type Pb_<1-x>Sn_xTe single crystals with various x values (x=0-0.28) were prepared and the Shubnikov-de Haas oscillations were measured. The results indicate that the Fermi surface consists of four [111] spheroids whose anisotropies increase with decreasing band gap. The effective mass and effective g^*-values of the conduction band were estimated as functions of the alloy composition, and the results are analyzed by a simple two-band non-parabolic model, which gives the transverse momentum matrix element P_〓=√0.58(1+0.21lx)/2, and the longitudinal momentum matrix element P_<//>=√0.046(1-0.142x)/2, both in atomic units (a.u.).
- 社団法人応用物理学会の論文
- 1982-09-20
著者
-
Narita Shin-ichiro
Department Of Material Physics
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Takafuji Yutaka
Department Of Material Physics Faculty Of Engineering Science Osaka University:(present Address) Cen
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