Electronic states and cyclotron resonance inn-type InMnAs
نویسندگان
چکیده
منابع مشابه
Electronic states and cyclotron resonance in n-type InMnAs
We present a theory for electronic and magneto-optical properties of n-type In12xMnxAs magnetic alloy semiconductors in a high magnetic field Bi ẑ . We use an eight-band Pidgeon-Brown model generalized to include the wave vector (kz) dependence of the electronic states as well as s-d and p-d exchange interactions with localized Mn d electrons. Calculated conduction-band Landau levels exhibit ef...
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Accurate determination of carrier densities in ferromagnetic semiconductors by Hall measurements is hindered by the anomalous Hall effect, and thus alternative methods are being sought. Here, we propose that cyclotron resonance (CR) is an excellent method for carrier density determination for InMnAs-based magnetic structures. We develop a theory for electronic and magneto-optical properties in ...
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We report the first observation of hole cyclotron resonance (CR) in ferromagnetic InMnAs/GaSb heterostructures both in the high-temperature paramagnetic phase and the low-temperature ferromagnetic phase. We clearly resolve two resonances that exhibit strong temperature dependence in position, linewidth, and intensity. We attribute the two resonances to the so-called fundamental CR transitions e...
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We present a theory for the electronic and optical properties of nand p-type In1−xMnxAs in ultra-high magnetic fields. An eight-band effective mass model based on the Pidgeon–Brown model and including the wavevector dependence of the electronic states as well as the s–d and p–d exchange interactions with Mn d-electrons is used to determine the electronic states. The optical properties such as c...
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Modern quasiparticle calculations based on hybrid functionals and the GW approximation or a transition-state approach are used to predict natural band discontinuities between wurtzite and zinc-blende polytypes of AlN, GaN, and InN by two alignment methods, a modified Tersoff method for the branch-point energy and the Shockley-Anderson model aligning electrostatic potentials. We find a type-I he...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2003
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.68.165205