International Summer School
Materials 4.0: Deep Mechanics

August 19-23, 2019
Applications open soon! #materials40

Skip to content.


search  |  internal  |  deutsch
Personal tools
TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology

» presentations   » 2012.03.29

Electron transport through helical, biimidazole-based structures (TT 44.5)

T. Brumme, R. Gutierrez, G. Cuniberti

DPG Frühjahrstagung der Sektion Kondensierte Materie (SKM)
DPG Spring Meeting of the Condensed Matter Section (SKM)

2012.03.29; (BH 334) Berlin, Germany

Molecular electronics and spintronics provide a promising strategy to overcome limitations of semiconductor-based technologies by implementing electronic functionalities at the molecular scale. However, in order to create single molecule spintronics devices one needs to understand the spin-dependent transport through the molecular system, its dependence on different molecular properties and possible mechanisms to change the magnetization of the molecule. Molecular systems with screw symmetry like DNA are especially interesting for spintronics applications since the transport through these systems can be spin selective [1]. We investigate the eletronic structure of a molecular helix formed by silver atoms and biimidazole units ([Ag(NO3)(H2biim)]n, [2, 3]). First-principles calculations reveal that several molecular orbitals possess screw symmetry and are completely delocalized along the helix. Based on this results we explore the possibility of spin-selective electron transport through this molecular helix.

[1] B. Göhler et al., Science 331, 894 (2011)
[2] C.A. Hester et al., Polyhedron 16, 2893 (1997)
[3] M. Sowwan et al., Journal of Nanomaterials 2010 (2010).

abstract (pdf)

conference announcement (html)

people| research | teaching | links | internal | home

last modified: 2019.03.20 Mi
author: webadmin

Prof. Dr. Gianaurelio Cuniberti
Ms Sylvi Katzarow
phone: +49 (0)351 463-31420
fax: +49 (0)351 463-31422
postal address:
Institute for Materials Science
TU Dresden
01062 Dresden, Germany
visitors and courier address:
HAL building
TU Dresden
Hallwachsstr. 3
01069 Dresden, Germany
Max Bergmann Center
TU Dresden
Budapester Str. 27
01069 Dresden, Germany