Spin polarization dependence of the coulomb drag at large r(s).
We find that the temperature dependence of the drag resistivity between two dilute two-dimensional hole systems exhibits an unusual dependence upon spin polarization. Our main observation is that near the apparent metal-insulator transition, the temperature dependence of the drag, given by Talpha, weakens significantly with the application of a parallel magnetic field (B(||)), with alpha saturating at half its zero field value for B(||)>B(*), where B(*) is the polarization field.
Pillarisetty
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Department of Electrical Engineering, Princeton University, Princeton, NJ 08544, USA.
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Hwayong
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Tutuc
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Poortere
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Tsui
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Shayegan
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