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Start Over Author "Ni, C." Journal applied physics letters
11 results on '"Ni, C."'

10. Enhanced differential conductance through light induced current switching in Mn12 acetate molecular junctions.

Author

Ni, C., Shah, S., Hendrickson, D., and Bandaru, P. R.

Subjects
*MANGANESE compounds, *ACETATES, *THERMAL conductivity, *MOLECULAR electronics, *LIGHTING
Abstract

The authors have observed through electrical transport measurements enhanced differential conductance (G=dI/dV), up to 2e2/h (∼77 μA/V), through the Mn12O12(O2CCH3)16(H2O)4·2CH3COOH·4H2O: “Mn12–Ac” molecule. At room temperature, under optical illumination, electrical switching, accompanied by a 60-fold increase of G through Mn12–Ac, was seen. The temperature dependence of G was used to determine the activation energy for molecular conduction to be ∼0.4 eV. Their results provide evidence for the possible use of Mn12–Ac as a conducting wire, in addition to its proposed utility for information storage, for implementing multifunctional molecular electronics. [ABSTRACT FROM AUTHOR]

Published
2006
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11. Spin-polarized transport in hybrid (Zn,Cr)Te/Al2O3/Co magnetic tunnel junctions.

Author

Wang, W. G., Ni, C., Moriyama, T., Wan, J., Nowak, E., and Xiao, John Q.

Subjects
*MAGNETORESISTANCE, *MAGNETIC semiconductors, *ELECTRODES, *LOW temperatures, *POLARIZATION (Electricity)
Abstract

Tunnel magnetoresistance (TMR) of 21% is observed at low temperature in hybrid magnetic tunnel junctions (MTJs) composed of a magnetic semiconductor (Zn,Cr)Te and Co electrodes separated by an alumina barrier. The TMR is observed up to 250 K, which is a considerable improvement over previous work on MTJs with semiconductor electrodes. The temperature and bias dependence of the TMR are consistent with a transport model involving spin-polarized tunneling and spin-independent hopping through impurity states. [ABSTRACT FROM AUTHOR]

Published
2006
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