Abstract
In the past few years interband and intraband magneto-optical experiments have been successful in determining information about the electronic energy band structure of a variety of semiconductors and semimetals. Representative general reviews of this work have been given by Lax,1 Dresselhaus and Dresselhaus,2 and Smith.3 The two classes of experiments are complementary and both may be necessary for a complete picture:
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(i)
Intraband free carrier experiments (such as cyclotron resonance or free carrier Faraday rotation) in general give direct information about the effective mass or curvature of a single populated band.
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(ii)
Interband magneto-optical experiments give energy gaps directly, and reduced masses (and g-values) for valence to conduction band transitions over a wide energy range, at different symmetry points in the Brillouin zone. In particular the interband magnetoreflection technique is necessary for opaque materials such as metals and semimetals, where transmission experiments are not possible. It has the advantage that it can be used to probe both full and empty bands, inaccessible by Fermi studies of the de Haas van Alphen type.
Supported by the U.S. Air Force Office of Scientific Research.
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References
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R. L. Bell and K. T. Rogers [Phys. Rev. 152, 746 (1966)] have numerically solved the full Hamiltonian, truncated to order 240 × 240, for one assumed set of band parameters, with \(\overrightarrow H\) ∥ (100).
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Pidgeon, C.R. (1969). Interband Magneto-Optics in Small Band Gap Semiconductors and Semimetals. In: Haidemenakis, E.D. (eds) Electronic Structures in Solids. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-6537-0_3
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