Browsing by Author "Ritchie, David"
Now showing items 114 of 14

Determining energy relaxation length scales in twodimensional electron gases
Billiald, Jordan; Backes, Dirk; Farrer, Ian; Ritchie, David; Narayan, Vijay; König, Jürgen (AIP, 2015)We present measurements of the energy relaxation length scale l in twodimensional electron gases (2DEGs). A temperature gradient is established in the 2DEG by means of a heating current, and then the elevated electron ... 
Development of SiOxNy waveguides for integrated quantum photonics
Floether, Frederik (20151110)The development of integrated quantum photonics is integral to many areas of quantum information science, in particular linear optical quantum computing. In this context, a diversity of physical systems is being explored ... 
Interplay of spinorbit coupling and superconducting correlations in germanium telluride thin films
Narayan, Vijay; Nguyen, ThuyAnh; Mansell, Rhodri; Ritchie, David; Mussler, Gregor (Wiley, 20160118)There is much current interest in combining superconductivity and spinorbit coupling in order to induce the topological superconducting phase and associated Majoranalike quasiparticles which hold great promise towards ... 
Laterally confined THz sources and graphene based THz optics
Badhwar, Shruti (20141007)The region between the infrared and microwave region in the electromagnetic spectrum, the Terahertz (THz) gap, provides an exciting opportunity for future wireless communications as this band has been under utilised. This ... 
Magnetotransport in low dimensional semiconductor structures
Kim, GilHo (19980616)This dissertation describes lowtemperature electronic transport measurements on semiconductor structures of restricted dimensionality. The experiments fall into two sets. The first concerns anisotropic magnetotransport ... 
‘Metal’like transport in highresistance, high aspect ratio twodimensional electron gases
Backes, Dirk; Hall, Richard; Pepper, Michael; Beere, Harvey; Ritchie, David; Narayan, Vijay (IOP Publishing, 20151209)We investigate the striking absence of strong localisation observed in mesoscopic twodimensional electron gases (2DEGs) [1, 2] even when their resistivity ρ >> h/e² . In particular, we try to understand whether this ... 
Observation of geometrydependent conductivity in twodimensional electron systems
Backes, Dirk; Hall, Richard; Pepper, Michael; Beere, Harvey; Ritchie, David; Narayan, Vijay (APS, 20151214)We report electrical conductivity σ measurements on a range of twodimensional electron gases (2DEGs) of varying linear extent. Intriguingly, at low temperatures (T) and low carrier density (n_s) we find the behaviour to ... 
Optoelectronic and photonic control of single quantum dots
Dewhurst, Samuel James (20101012)The area of quantum information promises to deliver a range of new technologies in the fields of quantum computing and quantum communication. Devices based on semiconductor quantum dots hold great potential for the practical ... 
Research data supporring "`Metal'like transport in highresistance, high aspect ratio twodimensional electron gases"
Backes, Dirk; Hall, Richard; Pepper, Michael; Beere, Harvey; Ritchie, David; Narayan, Vijay (University of Cambridge, 20151116) 
Research data supporting "Determining energy relaxation length scales in twodimensional electron gases"
Billiald, Jordan; Backes, Dirk; König, Jürgen; Farrer, Ian; Ritchie, David; Narayan, Vijay (University of Cambridge, 20150701) 
Research data supporting "Observation of geometry dependence of conductivity in twodimensional electron 2 systems"
Backes, Dirk; Hall, Richard; Pepper, Michael; Beere, Harvey; Ritchie, David; Narayan, Vijay (University of Cambridge, 20151124) 
Research data supporting "Topological states and phase transitions in Sb2Te3GeTe multilayers"
Nguyen, ThuyAnh; Backes, Dirk; Singh, Angadjit; Mansell, Rhodri; Barnes, Crispin; Ritchie, David; Mussler, GregorLanius, MartinGrützmacher, DetlevNarayan, Vijay et al. 
Solidstate photonic interfaces using semiconductor quantum dots
Boyer de la Giroday, Antoine (20120207)New technologies based on the properties of quantum mechanics promise to revolutionise the way information is processed by outperforming what is possible using classical devices. Examples include massively parallel ... 
Supporting data  Interplay of spin–orbit coupling and superconducting correlations in germanium telluride thin film
Narayan, Vijay; Nguyen, ThuyAnh; Mansell, Rhodri; Ritchie, David; Mussler, Gregor (University of Cambridge, 20160111)