nanotechnology-smart-materials-2018-tracks

E u r o S c i C o n C o n f e r e n c e o n

Nanotechnology &

Smart Materials

Nano Research & Applications

ISSN 2471-9838

O c t o b e r 0 4 - 0 6 , 2 0 1 8

Am s t e r d a m , N e t h e r l a n d s

Nanotechnology & Smart Materials 2018

Page 51

quasi-solid state atomic-scale quantum conductance switch is demonstrated

which allows to open and close an electrical circuit by the controlled and

reproducible reconfiguration of individual silver atoms within an atomic-scale

junction. The only movable parts of the switch are the contacting atoms. The

device which is fabricated by electrochemical deposition of silver atoms within

a gel electrolyte is entirely controlled by an external voltage applied to an

independent third gate electrode. Controlled switching was performed between

a quantized, electrically conducting “on-state” exhibiting a conductance of G0 =

/h (≈ 1/12.9kΩ) or pre-selectable multiples of this value and an insulating “off-

state”. The device, which reproducibly operates at room temperature, represents

an atomic transistor or relay, opening intriguing perspectives for the emerging

fields of quantum electronics and logics on the atomic scale.

Image

F Xie, A Peukert, Th Bender, Ch Obermair, F Wertz, Ph Schmieder and Th Schimmel

(2018) Quasi-Solid-State Single-AtomTransistor, Advanced Materials, in press.

Biography

Prof. Dr. Thomas Schimmel holds a doctorate in physics from

the University of Bayreuth. So far he had professorships at

universities in Munich and Linz. Since 1996 he teaches at the

Institute of Applied Physics of Karlsruhe University, Karlsruhe

Institute of Technology (KIT), and participates in numerous

research projects. He is the initiator and spokesman of the

research network "Functional Nanostructures" in Baden-

WÃ¼rttemberg. Professor Schimmel is head of the working

group for nanostructuring and scanning probe technology.

The quasi-solid state single-atom

transistor: perspectives for quantum

electronics at room temperature

Thomas Schimmel

Karlsruhe Institute of Technology (KIT), Germany

Thomas Schimmel, Nano Res Appl Volume:4

DOI: 10.21767/2471-9838-C6-024