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2013

Slow noise processes in superconducting resonators
J. Burnett, T. Lindström, M. Oxborrow, Y. Harada, Y. Sekine, P. Meeson and A. Ya. Tzalenchuk
Physical Review B, 87, 140501(R) (2013)
doi: 10.1103/PhysRevB.87.140501 (5 pages)

Epitaxial Graphene Sensors for Detection of Small Magnetic Moments
V. Panchal, D. Cox, R. Yakimova, and O. Kazakova
IEEE T. Magn., 49, 97-100 (2013)

 

2012

Weak localization scattering lengths in epitaxial, and CVD graphene
A. M. R. Baker, J. A. Alexander-Webber, T. Altebaeumer, T. J. B. M. Janssen, A. Tzalenchuk, S. Lara-Avila, S. Kubatkin, R. Yakimova, C. T. Lin, L. J. Li, and R. J. Nicholas
Physical Review B, 86, 235441 (2012) 

Spatially resolved electrical characterization of graphene layers by an evanescent field microwave microscope
Andrew Gregory, Ling Hao, Norbert Klein, John Gallop, Cecilia Mattevi, Olena Shaforost, Kevin Lees and Bob Clarke
In press, Physica E, http://dx.doi.org/10.1016/j.physe.2012.10.006 (2012)

Fabrication and Characterization of Carbon Nanotubes as r.f. Interconnects
L. Hao, D. Cox, K. Lees, J. C. Gallop, P. See, R. Clarke, T. J. B. M. Janssen, R. F. Zhang and F. Wei
Nanotechnology (IEEE-Nano), doi:10.1109/NANO.2012.6322012 (2012)

Surface Potential Variations in Epitaxial Graphene Devices Investigated by Electrostatic Force Spectroscopy
V. Panchal, T. L. Burnett, R. Pearce, K. Cedergren, R. Yakimova, A. Tzalenchuk and O. Kazakova
Nanotechnology (IEEE-Nano), doi:10.1109/NANO.2012.6322049 (2012)

Near-field Microwave Excitation and Detection of NEMS Resonators
L. Hao, J. Gallop and J. Chen
Nanotechnology (IEEE-Nano), doi:10.1109/NANO.2012.6321922 (2012)

Ferromagnetism in nanomesh graphene
G. Q. Ning, C. G. Xu, L. Hao, O. Kazakova, Z. J. Fan, H. Wang, K. X. Wang, J. S. Gao, W. Z. Qian and F. Wei
Carbon, 51, 390-396 (2013)

Stabilization of single-electron pumps by high magnetic fields
J. D. Fletcher, M. Kataoka, S. P. Giblin, Sunghun Park, H.-S. Sim, P. See, D. A. Ritchie, J. P. Griffiths, G. A. C. Jones, H. E. Beere and T. J. B. M. Janssen
Phys. Rev. B, 86, 155311 (2012)

Application of a Josephson quantum voltage source to the measurement of microsecond timescale settling time on the Agilent 3458A 8.5 digit voltmeter
D. Henderson, J. M. Williams and T. Yamada
Meas. Sci. Technol. 23, 124006 (2012)

Identification of epitaxial graphene domains and adsorbed species in ambient conditions using quantified topography measurements
T. L. Burnett, R. Yakimova and O. Kazakova
J. Appl. Phys., 112, 054308 (2012)

A low noise preamplifier with optoelectronic overload protection for radioactivity measurement
J. P. Sephton, J. M. Williams, L. C. Johansson and H. C. Philips
Appl. Radiat. Isot., 70, 2047-2050 (2012)

Towards a quantum representation of the ampere using single electron pumps
S.P. Giblin, M. Kataoka, J.D. Fletcher, P. See, T.J.B.M. Janssen, J.P. Griffiths, G.A.C. Jones, I. Farrer and D.A. Ritchie
Nature Communications 3, 930 (2012)

A monolithic array of three-dimensional ion traps fabricated with conventional semiconductor technology
Guido Wilpers, Patrick See, Patrick Gill and Alastair G. Sinclair
Nature Nanotechnology (2012)

Room-temperature solid-state maser
Mark Oxborrow, Jonathan D. Breeze and Neil M. Alford
Nature 488, 353-356 (2012)

Microwave surface impedance measurements on reduced graphene oxide
L. Hao, C. Mattevi, J. Gallop, S. Goniszewski, Y. Xiao, L. Cohen, and N. Klein
Nanotechnology, 23, 285706 (2012)

Precision comparison of the quantum Hall effect in graphene and gallium arsenide
T. J. B. M. Janssen, J. M. Williams, N. E. Fletcher, R. Goebel, A. Tzalenchuk, R. Yakimova, S. Lara-Avila, S. Kubatkin, and V. I. Fal'ko
Metrologia, 49, 294-306 (2012)

Modelling and optimization of submicron Hall sensors for the detection of superparamagnetic beads
A. Manzin, V. Nabaei, and O. Kazakova
J. Appl. Phys., 111, 07E513 (2012)

Small epitaxial graphene devices for magnetosensing applications
V. Panchal, K. Cedergren, R. Yakimova, A. Tzalenchuk, S. Kubatkin, and O. Kazakova
J. Appl. Phys., 111 (2012)

Synthesis of linear ZnO structures by a thermal decomposition method and their characterisation
K. K. Devarepally, D. C. Cox, A. T. Fry, V. Stolojan, R. J. Curry, and M. Munz
J. Mater. Sci., 47, 1893-1901 (2012)

Microwave excitation and readout of nano- and micron scale cantilevers
L. Hao, S. Goniszewski, J. Chen, and J. Gallop
Appl. Surf. Sci., 258, 2192-2195 (2012)

 

2011

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Synthesis and Magnetic Characterization of Coaxial Ge(1-x)Mn(x)/a-Si Heterostructures
S. Barth, O. Kazakova, S. Estrade, R. G. Hobbs, F. Peiro, M. A. Morris, and J. D. Holmes
Cryst. Growth Des., 11, 5253-5259 (2011)

Cryogenic current comparators and their application to electrical metrology
J. M. Williams
IET SCIENCE MEASUREMENT & TECHNOLOGY, 5, 211-224 (2011)

Disordered Fermi Liquid in Epitaxial Graphene from Quantum Transport Measurements
S. Lara-Avila, A. Tzalenchuk, S. Kubatkin, R. Yakimova, T. J. B. M. Janssen, K. Cedergren, T. Bergsten, and V. Fal'ko
Phys. Rev. Lett., 107, 166602 (2011)

Low optical power reference detector implemented in the validation of two independent techniques for calibrating photon-counting detectors.
J. Y. Cheung, C. J. Chunnilall, G. Porrovecchio, M. Smid, and E. Theocharous
Opt. Express, 19, 20347-20363 (2011)

Pound-locking for characterization of superconducting microresonators
T. Lindstroem, J. Burnett, M. Oxborrow, and A. Y. Tzalenchuk
Rev. Sci. Instrum., 82, 104706 (2011)

On-demand single-electron transfer between distant quantum dots
R. P. G. McNeil, M. Kataoka, C. J. B. Ford, C. H. W. Barnes, D. Anderson, G. A. C. Jones, I. Farrer, and D. A. Ritchie
Nature, 477, 439-442 (2011)

Graphene, universality of the quantum Hall effect and redefinition of the SI system
T. J. B. M. Janssen, N. E. Fletcher, R. Goebel, J. M. Williams, A. Tzalenchuk, R. Yakimova, S. Kubatkin, S. Lara-Avila, and V. I. Falko
NEW JOURNAL OF PHYSICS, 13, 093026 (2011)

Detection and susceptibility measurements of a single Dynal bead
L. Di Michele, C. Shelly, P. de Marco, P. See, D. Cox, and O. Kazakova
J. Appl. Phys., 110, 063916 (2011)

Better than Bragg: Optimizing the quality factor of resonators with aperiodic dielectric reflectors
J. Breeze, M. Oxborrow, and N. M. Alford
Appl. Phys. Lett., 99, 113515 (2011)

Quantum-referenced voltage waveform synthesiser
J. M. Williams, D. Henderson, J. Pickering, R. Behr, F. Mueller, and P. Scheibenreiter
IET SCIENCE MEASUREMENT & TECHNOLOGY, 5, 163-174 (2011)

Unprecedented Long-Term Frequency Stability With a Microwave Resonator Oscillator
S. Grop, W. Schaefer, P.-Y. Bourgeois, Y. Kersale, M. Oxborrow, E. Rubiola, and V. Giordano
IEEE T. Ultrason. Ferr., 58, 1694-1697 (2011)

Engineering and metrology of epitaxial graphene
A. Tzalenchuk, S. Lara-Avila, K. Cedergren, M. Syvajarvi, R. Yakimova, O. Kazakova, T. J. B. M. Janssen, K. Moth-Poulsen, T. Bjornholm, S. Kopylov, V. Fal'ko, and S. Kubatkin
Solid State Commun., 151, 1094-1099 (2011)

Johnson-Nyquist Noise of the Quantized Hall Resistance
J. Schurr, H. Moser, K. Pierz, G. Ramm, and B. P. Kibble
IEEE T. Instrum. Meas., 60, 2280-2285 (2011)

Anomalously strong pinning of the filling factor nu=2 in epitaxial graphene
T. J. B. M. Janssen, A. Tzalenchuk, R. Yakimova, S. Kubatkin, S. Lara-Avila, S. Kopylov, and V. I. Fal'ko
PHYSICAL REVIEW B, 83, 233402 (2011)

Noise Performance of Niobium Nano-SQUIDs in Applied Magnetic Fields
E. J. Romans, S. Rozhko, L. Young, A. Blois, L. Hao, D. Cox, and J. C. Gallop
IEEE T. Appl. Supercon., 21, 404-407 (2011)

Readout System for NanoSQUID Sensors Using a SQUID Amplifier
F. Ruede, S. Bechstein, L. Hao, C. Assmann, T. Schurig, J. Gallop, O. Kazakova, J. Beyer, and D. Drung
IEEE T. Appl. Supercon., 21, 408-411 (2011)

Mapping of Local Electrical Properties in Epitaxial Graphene Using Electrostatic Force Microscopy
T. Burnett, R. Yakimova, and O. Kazakova
Nano Lett., 11, 2324-2328 (2011)

Single- and few-electron dynamic quantum dots in a perpendicular magnetic field
S. J. Wright, A. L. Thorn, M. D. Blumenthal, S. P. Giblin, M. Pepper, T. J. B. M. Janssen, M. Kataoka, J. D. Fletcher, G. A. C. Jones, C. A. Nicoll, G. Gumbs, and D. A. Ritchie
J. Appl. Phys., 109, 102422 (2011)

A metrology perspective on the dark injection transient current method for charge mobility determination in organic semiconductors
T. Esward, S. Knox, H. Jones, P. Brewer, C. Murphy, L. Wright, and J. Williams
J. Appl. Phys., 109, 093707 (2011)

Room-temperature ferromagnetism in Mn-implanted amorphous Ge
L. Ottaviano, A. Continenza, G. Profeta, G. Impellizzeri, A. Irrera, R. Gunnella, and O. Kazakova
PHYSICAL REVIEW B, 83, 134426 (2011)

Tunable Nonadiabatic Excitation in a Single-Electron Quantum Dot
M. Kataoka, J. D. Fletcher, P. See, S. P. Giblin, T. J. B. M. Janssen, J. P. Griffiths, G. A. C. Jones, I. Farrer, and D. A. Ritchie
Phys. Rev. Lett., 106, 126801 (2011)

Mapping the placement of oligonucleotide molecules using scanning probe microscopy
R. D. Boyd, L. Winkless, A. Cuenat, and O. Kazakova
COLLOIDS AND SURFACES B-BIOINTERFACES, 83, 10-15 (2011)

Detection of single magnetic nanobead with a nano-superconducting quantum interference device
L. Hao, C. Assmann, J. C. Gallop, D. Cox, F. Ruede, O. Kazakova, P. Josephs-Franks, D. Drung, and T. Schurig
Appl. Phys. Lett., 98, 092504 (2011)

Non-Volatile Photochemical Gating of an Epitaxial Graphene/Polymer Heterostructure
S. Lara-Avila, K. Moth-Poulsen, R. Yakimova, T. Bjornholm, V. Fal'ko, A. Tzalenchuk, and S. Kubatkin
ADVANCED MATERIALS, 23, 878+ (2011)

Design Concept for a Novel Squid-based Microdosemeter 
S. Galer, L. Hao, J. Gallop, H. Palmans, K. Kirkby, and A. Nisbet
RADIATION PROTECTION DOSIMETRY, 143, 427-431 (2011)

Materials for superconducting nanowires for quantum phase-slip devices
J. C. Fenton, C. H. Webster and P. A. Warburton
Condensed Matter and Materials Physics Conference (cmmp10), 286, AWE; EPSRC; IOP Publishing (2011)

Quantum Detection Applications of NanoSQUIDs fabricated by Focussed Ion Beam
L. Hao 286, 012013 (2011)

Single-photon technologies
A. L. Migdall, I. P. Degiovanni, J. Y. Cheung, S. V. Polyakov, and J. Fan
J. Mod. Opt., 58, 169-173 (2011)

Outgassing of water vapour, and its significance in experiments to determine the Boltzmann constant
M. de Podesta, G. Sutton, R. Underwood, S. Bell, M. Stevens, T. Byrne, and P. Josephs-Franks
METROLOGIA, 48, L1-L6 (2011)

High-aspect ratio needle probes for combined scanning electrochemical microscopy-Atomic force microscopy
A. J. Wain, D. Cox, S. Zhou, and A. Turnbull
Electrochem. Commun., 13, 78-81 (2011)

 

2010

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Magnetic nanoparticle detection using nano-SQUID sensors
L. Hao, D. Cox, P. See, J. Gallop and O. Kazakova
Journal of Physics D-applied Physics, 43, 474004 (2010)

Characterization of the Linearity of Response and Spatial Uniformity of Response of Two InGaAsP/InP Geiger-Mode Avalanche Photodiodes
E. Theocharous, M. A. Itzler, J. Cheung and C. J. Chunnilall
Ieee Journal of Quantum Electronics, 46, 1561-1567 (2010)

Single particle detection: Phase control in submicron Hall sensors
L. Di Michele, C. Shelly, J. Gallop and O. Kazakova
Journal of Applied Physics, 108, 103918 (2010)

Nonlinear spin-wave phenomena in the [Mn(R/S)-pn(2)](2)[Mn(R/S)-pn(2)H2O][Cr(CN)(6)] molecular ferrimagnet
R. B. Morgunov, F. B. Mushenok and O. Kazakova
Physical Review B, 82, 134439 (2010)

Splitting and lasing of whispering gallery modes in quantum dot micropillars
B. D. Jones, M. Oxborrow, V. N. Astratov, M. Hopkinson, A. Tahraoui, M. S. Skolnick and A. M. Fox
Optics Express, 18, 22578-22592 (2010)

Charge transfer between epitaxial graphene and silicon carbide
S. Kopylov, A. Tzalenchuk, S. Kubatkin and V. I. Fal'ko
Applied Physics Letters, 97, 112109 (2010)

Wide spectral range confocal microscope based on endlessly single-mode fiber
R. Hubbard, Y. B. Ovchinnikov, J. Hayes, D. J. Richardson, Y. J. Fu, S. D. Lin, P. See and A. G. Sinclair
Optics Express, 18, 18811-18819 (2010)

An accurate high-speed single-electron quantum dot pump
S. P. Giblin, S. J. Wright, J. D. Fletcher, M. Kataoka, M. Pepper, T. J. B. M. Janssen, D. A. Ritchie, C. A. Nicoll, D. Anderson and G. A. C. Jones
New Journal of Physics, 12, 073013 (2010)

The quantum metrology triangle and the redefinition of the SI ampere and kilogram; analysis of a reduced set of observational equations
M. J. T. Milton, J. M. Williams and A. B. Forbes
Metrologia, 47, 279-286 (2010)

An automated cryogenic current comparator resistance ratio bridge for routine resistance measurements
J. M. Williams, T. J. B. M. Janssen, G. Rietveld and E. Houtzager
Metrologia, 47, 167-174 (2010)

An etalon-based method for frequency calibration of terahertz time-domain spectrometers (THz TDS)
M. Naftaly, R. A. Dudley and J. R. Fletcher
Optics Communications, 283, 1849-1853 (2010)

Ultrasmall particle detection using a submicron Hall sensor
O. Kazakova, V. Panchal, J. Gallop, P. See, D. C. Cox, M. Spasova and L. F. Cohen
Journal of Applied Physics, 107, 09E708 (2010)

Sensing individual terahertz photons
H. Hashiba, V. Antonov, L. Kulik, A. Tzalenchuk and S. Komiyama
Nanotechnology, 21, 165203 (2010)

Measurement of photon indistinguishability to a quantifiable uncertainty using a Hong-Ou-Mandel interferometer
P. J. Thomas, J. Y. Cheung, C. J. Chunnilall and M. H. Dunn
Applied Optics, 49, 2173-2182 (2010)

Observation of Periodic Orbits on Curved Two-Dimensional Geometries
M. Avlund, C. Ellegaard, M. Oxborrow, T. Guhr and N. Sondergaard
Physical Review Letters, 104, 164101 (2010)

Effect of nanostructuring of the Ge1-x Mn (x) single-crystal alloy on the percolation and cluster ferromagnetism
R. B. Morgunov, A. I. Dmitriev and O. L. Kazakova
Physics of the Solid State, 52, 748-751 (2010)

Towards a quantum resistance standard based on epitaxial graphene
A. Tzalenchuk, S. Lara-Avila, A. Kalaboukhov, S. Paolillo, M. Syvajarvi, R. Yakimova, O. Kazakova, T. J. B. M. Janssen, V. Fal'ko and S. Kubatkin
Nature Nanotechnology, 5, 186-189 (2010)

Effect of annealing on the microwave magnetoresistance of thin Ge0.96Mn0.04 films
A. I. Dmitriev, R. B. Morgunov and O. L. Kazakova
Semiconductors, 44, 303-308 (2010)

Unusual magnetism in templated NiS nanoparticles
L. Barry, J. D. Holmes, D. J. Otway, M. P. Copley, O. Kazakova and M. A. Morris
Journal of Physics-condensed Matter, 22, 076001 (2010)

ELISA: A cryocooled 10 GHz oscillator with 10(-15) frequency stability
S. Grop, P. Y. Bourgeois, N. Bazin, Y. Kersale, E. Rubiola, C. Langham, M. Oxborrow, D. Clapton, S. Walker, J. De Vicente and V. Giordano
Review of Scientific Instruments, 81, 025102 (2010)

Optical-radio-frequency resonances free from power broadening
W. Chalupczak, P. Josephs-Franks, S. Pustelny and W. Gawlik
Physical Review A, 81, 013422 (2010)