Far-Infrared Magnetic-Field-Dependent Resonances in Small Unsupported Bismuth Particles
PITTSBURGH UNIV PA DEPT OF PHYSICS AND ASTRONOMY
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This reprint reports on far-infrared FIR magneto-optical absorption by small approx. 0.5 micrometers mean diameter Bi particles. The problem of the interaction of electromagnetic radiation with a small sphere in a magnetic field the gyrotropic sphere has attracted recent interest. Applications include the microwave properties of powdered semiconductors and the electrodynamic properties of electron-hole droplets. Bi particles have important advantages as a model system. There is less uncertainty in the carrier density relative to semiconductors because doping is not required. The size of the particles can be controlled. Bi particles should not deform much in a magnetic field. Also, the properties of bulk Bi are well known and available as input to models.
- Electricity and Magnetism