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Transverse electric field modulated tunneling magnetoresistance in a DNA molecular device
Da-Wei Kang1, Zhen Qu, Hong Jiang
1School of Physics, Shandong University, Jinan, 250100, China.
Physical Chemistry Chemical Physics : PCCP
|January 13, 2010
Abstract:
Quantum spin-dependent transport in a ferromagnetic(FM)/DNA/ferromagnetic(FM) device is theoretically investigated based on the lattice Green function method and the Landauer-Büttiker theory. The effect of a transverse electric field on magnetoresistance (MR) of the device is investigated. It is predicted that either the direction or strength of the transverse electric field can change the MR of the device. We suggest a possible application of modulating MR of the FM/DNA/FM device by a transverse electric field.
