Properties and Technological Applications of Superconducting Nanowire Devices

Marchenkov, Alexei

Title:

Properties and Technological Applications of Superconducting Nanowire Devices

dc.contributor.author	Marchenkov, Alexei
dc.contributor.corporatename	Georgia Institute of Technology. School of Physics
dc.date.accessioned	2007-10-26T18:01:58Z
dc.date.available	2007-10-26T18:01:58Z
dc.date.issued	2007-10-09
dc.description	Alexei Marchenkov from the School of Physics presented a lecture at the Nano@Tech Meeting on October 9, 2007 at 12 noon in room 102 of the MiRC building	en_US
dc.description	Runtime: 62:06 minutes
dc.description.abstract	The generation of high-frequency current oscillations when a constant voltage is applied across an insulating tunnel gap separating two superconductors was one of the fundamental theoretical predictions made by Brian Josephson, which earned him a share of the 1973 Nobel Prize in physics. This discovery provided the foundation for the most sensitive detectors of electromagnetic radiation and magnetic fields, as well as superconducting quantum computing bits. These technologies have numerous practical applications in various fields, including geology, biomedical diagnostics, and nanoscale characterization. In a synergetic study, which involved both measurements and first-principles simulations, we discovered that the Josephson current oscillations can excite atomic-scale mechanical resonances in metallic nanowires [1,2]. These resonances were observed in the technologically rich, but relatively unexplored, terahertz portion of the electromagnetic spectrum ("terahertz gap"). I will outline how chemically functionalized superconducting nanowires can be used in innovative sensing technologies that hold enormous potential in the chemical and biological material identification and characterization fields. [1] A. Marchenkov, Z. Dai, B. Donehoo, R. N. Barnett, and U. Landman, Nature Nanotechnology 2, 481 (2007). [2] A. Marchenkov, Z. Dai, C. Zhang, R. N. Barnett, and U. Landman, Phys.Rev.Lett. 98 (2007) 046802.	en_US
dc.format.extent	62:06 minutes
dc.identifier.uri	http://hdl.handle.net/1853/16995
dc.language.iso	en_US	en_US
dc.publisher	Georgia Institute of Technology	en_US
dc.relation.ispartofseries	Nano@Tech Lecture Series
dc.subject	Nanotechnology	en_US
dc.subject	Josephson current oscillations
dc.subject	Molecular nanowires
dc.subject	Superconducting nanowires
dc.subject	Quantum effects in electronic transport
dc.title	Properties and Technological Applications of Superconducting Nanowire Devices	en_US
dc.type	Moving Image
dc.type.genre	Lecture
dspace.entity.type	Publication
local.contributor.corporatename	Institute for Electronics and Nanotechnology (IEN)
local.relation.ispartofseries	Nano@Tech Lecture Series
relation.isOrgUnitOfPublication	5d316582-08fe-42e1-82e3-9f3b79dd6dae
relation.isSeriesOfPublication	accfbba8-246e-4389-8087-f838de8956cf