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Angular and temperature‐related specific features of averaging of hole effective masses in p‐Ge at low temperatures
Author(s) -
Tisnek T.,
Veinger A.,
Zabrodskii A.,
Goloshchapov S.
Publication year - 2009
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.200910401
Subject(s) - spins , condensed matter physics , magnetoresistance , tilt (camera) , physics , anomaly (physics) , magnetic field , plane (geometry) , field (mathematics) , conductivity , geometry , mathematics , quantum mechanics , pure mathematics
Microwave magnetoresistance of lightly doped (nondegenerate) p‐Ge has been studied by the electron spin resonance method, which can record the derivative of the microwave absorption with respect to the magnetic field. The change in the absorption is proportional to that in the conductivity of the semiconductor in the magnetic field (magnetoresistance). It was found that the averaging time of the light and heavy holes effective masses depends on temperature and on the magnetic field direction in a sample. An analysis of the derivative made it possible to determine regions of the fastest effective mass averaging.