177 citations · 336 across the 19 of their papers we have counts for
19 papers
Quantifying the local mechanical properties of twisted double bilayer graphene
Alessandra Canetta, Sergio Gonzalez-Munoz, Viet-Hung Nguyen +13
Nanomechanical measurements of minimally twisted van der Waals materials remained elusive despite their fundamental importance for device realisation. Here, we use Ultrasonic Force…
Tuning thermoelectric properties of SbTe-AgSbTe nanocomposite thin film -- synergy of band engineering and heat transport modulation
Abhishek Ghosh, Khushboo Agarwal, Sergio Gonzalez Munoz +9
The present study demonstrates a large enhancement in the Seebeck coefficient and ultralow thermal conductivity (TE) in SbTe-AgSbTe nanocomposite thin film. The additio…
Direct Mapping of Local Seebeck Coefficient in 2D Material Nanostructures via Scanning Thermal Gate Microscopy
Achim Harzheim, Charalambos Evangeli, Oleg V. Kolosov +1
Local variations in the Seebeck coefficient in low-dimensional materials-based nanostructures and devices play a major role in their thermoelectric performance. Unfortunately, curr…
Mapping nanoscale dynamic properties of suspended and supported multi-layer graphene membranes via contact resonance and ultrasonic scanning probe microscopies
Marta Mucientes, Robert McNair, Adrian Peasey +5
Graphene (GR) remarkable mechanical and electrical properties - such as its Young's modulus, low mass per unit area, natural atomic flatness and electrical conductance - would make…
Scale-up of room-temperature constructive quantum interference from single molecules to self-assembled molecular-electronic films
Xintai Wang, Troy L. R. Bennett, Ali Ismael +9
The realization of self-assembled molecular-electronic films, whose room-temperature transport properties are controlled by quantum interference (QI), is an essential step in the s…
Multimode probing of superfluid by tuning forks
A. Guthrie, R. P. Haley, A. Jennings +9
Flexural mode vibrations of miniature piezoelectric tuning forks (TF) are known to be highly sensitive to superfluid excitations and quantum turbulence in and $\mat…
Efficient heating of single-molecule junctions for thermoelectric studies at cryogenic temperatures
Pascal Gehring, Martijn van der Star, Charalambos Evangeli +4
The energy dependent thermoelectric response of a single molecule contains valuable information about its transmission function and its excited states. However, measuring it requir…
Geometrically Enhanced Thermoelectric Effects in Graphene Nanoconstrictions
Achim Harzheim, Jean Spiece, Charalambos Evangeli +8
The influence of nanostructuring and quantum confinement on the thermoelectric properties of materials has been extensively studied. While this has made possible multiple breakthro…
Correlation of structural, nanomechanical and electrostatic properties of single and few-layers MoS2
Benjamin J. Robinson, Cristina E. Giusca, Yurema Teijeiro Gonzalez +3
We have decoupled the intrinsic optical and electrostatic effects arising in monolayer and few-layer molybdenum disulphide from those influenced by the flake-substrate interaction.
Field-Effect Control of Graphene-Fullerene Thermoelectric Nanodevices
Pascal Gehring, Achim Harzheim, Jean Spièce +10
Although it was demonstrated that discrete molecular levels determine the sign and magnitude of the thermoelectric effect in single-molecule junctions, full electrostatic control o…
Nanoscale Mapping of Nanosecond Time-scale Electro-Mechanical Phenomena in Graphene NEMS
Nicholas D. Kay, Peter D. Tovee, Benjamin J. Robinson +2
Atomically thin layers of two-dimensional (2D) materials such as graphene, MoS2 and h-BN have immense potential as sensors and electronic devices thanks to their highly desirable e…
Time dynamics of photothermal vs optoacoustic response in mid IR nanoscale biospectroscopy
Peter D. Tovee, Claire Tinker-Mill, Kevin Kjoller +6
Infrared (IR) spectroscopy, a well established tool for chemical analysis of diverse materials, has significant potential in biomedical applications. While the spatial resolution o…
Shear Forces and Heat Conductance in Nanoscale Junctions
B. J. Robinson, M. E. Pumarol, O. V. Kolosov
Nanoscale solid-solid contacts define a wealth of material behaviours from the electrical and thermal conductivity in modern electronic devices to friction and losses in micro- and…
Optical properties of two-dimensional gallium chalcogenide films
O. Del Pozo-Zamudio, S. Schwarz, M. Sich +12
Gallium chalcogenides are promising building blocks for novel van der Waals heterostructures. We report low-temperature micro-photoluminescence (PL) of GaTe and GaSe films with thi…
Nanomechanical morphology of amorphous, transition, and crystalline domains in phase change memory thin films
James L. Bosse, Ilya Grishin, Bryan D. Huey +1
In the search for phase change materials (PCM) that may rival traditional random access memory, a complete understanding of the amorphous to crystalline phase transition is require…
Nanoscale resolution scanning thermal microscopy with thermally conductive nanowire probes
Maria Timofeeva, Alexey Bolshakov, Peter D. Tovee +3
Scanning thermal microscopy (SThM) - a type of scanning probe microscopy that allows mapping thermal transport and temperatures in nanoscale devices, is becoming a key approach tha…
Ultra High Thermal Resolution Scanning Probe Microscopy via Carbon Nanotube Tipped Thermal Probes
Peter D. Tovee, Manuel E. Pumarol, Mark C. Rosamond +4
We present a new concept of scanning thermal nanoprobe that utilizes the extreme thermal conductance of a carbon nanotube (CNT) to channel heat between the probe and the sample. Th…
Optical investigation of the natural electron doping in thin MoS2 films deposited on dielectric substrates
D. Sercombe, S. Schwarz, O. Del Pozo-Zamudio +6
Two-dimensional (2D) compounds provide unique building blocks for novel layered devices and hybrid photonic structures. However, large surface-to-volume ratio in thin films enhance…
Nanoscale resolution immersion scanning thermal microscopy
Peter D. Tovee, Oleg V. Kolosov
Nanoscale thermal properties are becoming of extreme importance for modern electronic circuits that dissipate increasing power on the length scale of few tens of nanometers, and fo…