Resonant Tunnelling through InAs Quantum Dots in Tilted Magnetic Fields: Experimental Determination of the g-factor Anisotropy
J. M. Meyer, I. Hapke-Wurst, U. Zeitler, R. J. Haug, K. Pierz
Abstract
We have determined the Landé factor g* in self-organized InAs quantum dots using resonant-tunnelling experiments. With the magnetic field applied parallel to the growth direction z we find g* = 0.75 for the specific dot investigated. When the magnetic field is tilted away by theta from the growth axis, g* gradually increases up to a value g* = 0.92 when B z. Its angular dependence is found to follow the phenomenological behaviour g* (theta) = (g* cos(theta)2 + (g* sin(theta)2.
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