Far-infrared absorption measurements have been performed in nominally undoped GaAs1-xBix (0.6% <= x <= 10.6%) for magnetic field up to 30 T. For 0.6% <= x <= 4.5%, the Lyman series of an acceptor has been observed. An exceedingly high value of the ground-state g factor provides strong evidence of Bi-related acceptor states. For x >= 5.6%, however, these acceptors suddenly disappear. Such anomalous dependence on Bi concentration parallels those recently reported in GaAs1-xBix for other electronic and structural properties.

Compositional evolution of Bi-induced acceptor states in GaAs1-xBix alloy / Pettinari, Giorgio; H., Engelkamp; P. C. M., Christianen; J. C., Maan; Polimeni, Antonio; Capizzi, Mario; X., Lu; T., Tiedje. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - 83:(2011), pp. 201201-201201. [10.1103/physrevb.83.201201]

Compositional evolution of Bi-induced acceptor states in GaAs1-xBix alloy

PETTINARI, GIORGIO;POLIMENI, Antonio;CAPIZZI, Mario;
2011

Abstract

Far-infrared absorption measurements have been performed in nominally undoped GaAs1-xBix (0.6% <= x <= 10.6%) for magnetic field up to 30 T. For 0.6% <= x <= 4.5%, the Lyman series of an acceptor has been observed. An exceedingly high value of the ground-state g factor provides strong evidence of Bi-related acceptor states. For x >= 5.6%, however, these acceptors suddenly disappear. Such anomalous dependence on Bi concentration parallels those recently reported in GaAs1-xBix for other electronic and structural properties.
2011
01 Pubblicazione su rivista::01a Articolo in rivista
Compositional evolution of Bi-induced acceptor states in GaAs1-xBix alloy / Pettinari, Giorgio; H., Engelkamp; P. C. M., Christianen; J. C., Maan; Polimeni, Antonio; Capizzi, Mario; X., Lu; T., Tiedje. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - 83:(2011), pp. 201201-201201. [10.1103/physrevb.83.201201]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/354803
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