Molecular quantum conductors: charge and spin transport manipulations by interface effects and reduced dimensionality

Seminar
Colloquium
QUEST Center event
No
Speaker
Oren Tal, Department of Chemical Physics, Weizmann Institute of Science
Date
29/05/2017 - 13:30Add to Calendar 2017-05-29 13:30:00 2017-05-29 13:30:00 Molecular quantum conductors: charge and spin transport manipulations by interface effects and reduced dimensionality The inherent electronic mismatch between molecules and metals is a general limitation for efficient electron transport in molecule-based electronics, including organic light emitting diodes, nanoscale organic spin-valves, and single-molecule transistors. In this talk, I will review our recent progress in revealing an upper limit for conductance across metal-single molecule interfaces [1], as well as extreme spin filtering and unusual magneto-transport effects in metal-oxide junctions [2] and half-metallic molecular junctions. These findings can be used to derive general principles for efficient charge and spin transport manipulations at the atomic scale [1-4]. References: [1] T. Yelin, R. Korytár, N. Sukenik, R. Vardimon, B. Kumar, C. Nuckolls, F. Evers & O. Tal, Nature Materials, 15, 444 (2016).       [2] R. Vardimon, M. Klionsky & O Tal, Nano Letters, 15, 3894 (2015). [3] D. Rakhmilevitch, R. Korytár, A. Bagrets, F. Evers & O. Tal, Physical Review Letters 113, 236603 (2014). [4] D. Rakhmilevitch, S. Sarkar, O. Bitton, L. Kronik & O. Tal, Nano Letters 16, 1741 (2016).   Building 202 (Physics) room 301 Department of Physics physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
Building 202 (Physics) room 301
Abstract

The inherent electronic mismatch between molecules and metals is a general limitation for efficient electron transport in molecule-based electronics, including organic light emitting diodes, nanoscale organic spin-valves, and single-molecule transistors.

In this talk, I will review our recent progress in revealing an upper limit for conductance across metal-single molecule interfaces [1], as well as extreme spin filtering and unusual magneto-transport effects in metal-oxide junctions [2] and half-metallic molecular junctions. These findings can be used to derive general principles for efficient charge and spin transport manipulations at the atomic scale [1-4].

References:

[1] T. Yelin, R. Korytár, N. Sukenik, R. Vardimon, B. Kumar, C. Nuckolls, F. Evers & O. Tal, Nature Materials, 15, 444 (2016).      

[2] R. Vardimon, M. Klionsky & O Tal, Nano Letters, 15, 3894 (2015).

[3] D. Rakhmilevitch, R. Korytár, A. Bagrets, F. Evers & O. Tal, Physical Review Letters 113, 236603 (2014).

[4] D. Rakhmilevitch, S. Sarkar, O. Bitton, L. Kronik & O. Tal, Nano Letters 16, 1741 (2016).

 

Last Updated Date : 21/05/2017