Antilocalization effect on photo-generated carriers in semi-insulating GaAs sample

Magnetoresistance measurements were performed on an illuminated semi-insulating GaAs sample with intrinsic deep level defects. Electrical carriers were photo-generated under light excitation and positive magnetoresistance for B < 0.2 T was observed in the whole range of temperatures measured (220...

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Bibliographic Details
Main Authors: Emilson Ribeiro Viana, Geraldo Mathias Ribeiro, Alfredo Gontijo de Oliveira, Marcelos Lima Peres, Rero Marques Rubinger, Carla Patrícia Lacerda Rubinger
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2012-08-01
Series:Materials Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000400008