Parabolic negative magnetoresistance in p-Ge/Ge1-xSix heterostructures

Details Parabolic negative magnetoresistance in p-Ge/Ge1-xSix heterostructures Parabolic negative magnetoresistance in p-Ge/Ge1-xSix heterostructures

2002-03-21

arxiv.org/abs/cond-mat/0203435v1

Semiconductors 33, No 9 (September 1999) 978-980

Physics

Condensed Matter

Disordered Systems and Neural Networks

3 pages, 4 figures

Scientific paper

Quantum corrections to the conductivity due to the weak localization (WL) and the disorder-modified electron-electron interaction (EEI) are investigated for the high-mobility multilayer p-Ge/Ge1-xSix heterostructures at T = (0.1 - 20.0)K in magnetic field B up to 1.5T. Negative magnetoresistance with logarithmic dependence on T and linear in B^2 is observed for B >= 0.1T. Such a behavior is attributed to the interplay of the classical cyclotron motion and the EEI effect. The Hartree part of the interaction constant is estimated (F_/sigma = 0.44) and the WL and EEI contributions to the total quantum correction /Delta /sigma at B = 0 are separated (/Delta /sigma_{WL} ~ 0.3/Delta /sigma; /Delta /sigma_{EEI} ~ 0.7/Delta /sigma).

Affiliated with

Also associated with

No associations

Rating

Parabolic negative magnetoresistance in p-Ge/Ge1-xSix heterostructures does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Parabolic negative magnetoresistance in p-Ge/Ge1-xSix heterostructures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Parabolic negative magnetoresistance in p-Ge/Ge1-xSix heterostructures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-664918