Zobrazeno 1 - 10
of 435
pro vyhledávání: '"Jardine, Andrew"'
Autor:
Zhao, Chenyang, Lambrick, Sam M, von Jeinsen, Nick A, Yuan, Yanke, Zhang, Xiaolong, Radić, Aleksandar, Ward, David J, Ellis, John, Jardine, Andrew P
Scanning helium microscopy (SHeM) is an emerging technique that uses a beam of neutral atoms to image and analyse surfaces. The low energies ($\sim$64 meV) and completely non-destructive nature of the probe particles provide exceptional sensitivity f
Externí odkaz:
http://arxiv.org/abs/2410.13955
Autor:
von Jeinsen, Nick, Radic, Aleksandar, Wang, Ke, Zhao, Chenyang, Perez, Vivian, Zhu, Yiru, Chhowalla, Manish, Jardine, Andrew, Ward, David, Lambrick, Sam
We present helium atom micro-diffraction as an ideal technique for characterization of 2D materials due to its ultimate surface sensitivity combined with sub-micron spatial resolution. Thermal energy neutral helium scatters from the valence electron
Externí odkaz:
http://arxiv.org/abs/2409.20461
Autor:
Radic, Aleksandar, von Jeinsen, Nick, Wang, Ke, Zhu, Yiru, Sami, Ismail, Perez, Vivian, Ward, David, Jardine, Andrew, Chhowalla, Manish, Lambrick, Sam
2D materials continue to be pivotal in the advancement of modern devices. Their optoelectronic, mechanical and thermal properties can be finely modulated using a variety of methods, including strain, passivation, doping and defect density. Vacancy-ty
Externí odkaz:
http://arxiv.org/abs/2409.18637
Free-jet atomic, cluster and molecular sources are typically used to produce beams of low-energy, neutral particles and find application in a wide array of technologies, from neutral atom microscopes to instruments for surface processing. However, un
Externí odkaz:
http://arxiv.org/abs/2409.12628
Autor:
Radic, Aleksandar, Lambrick, Sam M., von Jeinsen, Nick A., Jardine, Andrew P., Ward, David J.
Three-dimensional mapping of surface structures is important in a wide range of biological, technological, healthcare and research applications, including taxonomy, microfluidics and fabrication. Neutral helium atom beams have been established as a s
Externí odkaz:
http://arxiv.org/abs/2312.11114
Autor:
Ruckhofer, Adrian, Sacchi, Marco, Payne, Anthony, Jardine, Andrew P., Ernst, Wolfgang E., Avidor, Nadav, Tamtögl, Anton
Large-area single-crystal monolayers of two-dimensional (2D) materials such as graphene and hexagonal boron nitride (h-BN) can be grown by chemical vapour deposition (CVD). However, the high temperatures and fast timescales at which the conversion fr
Externí odkaz:
http://arxiv.org/abs/2201.06440
Autor:
Ward, David J., Raghavan, Arjun, Tamtögl, Anton, Jardine, Andrew P., Bahn, Emanuel, Ellis, John, Miret-Artés, Salvador, Allison, William
In studies of dynamical systems, helium atoms scatter coherently from an ensemble of adsorbates as they diffuse on the surface. The results give information on the co-operative behaviour of interacting adsorbates and thus include the effects of both
Externí odkaz:
http://arxiv.org/abs/2010.02134
Autor:
Tamtögl, Anton, Bahn, Emanuel, Sacchi, Marco, Zhu, Jianding, Ward, David J., Jardine, Andrew P., Jenkins, Steven J., Fouquet, Peter, Ellis, John, Allison, William
Publikováno v:
Nature communications, 12, 3120 (2021)
The interfacial behaviour of water remains a central question to fields as diverse as protein folding, friction and ice formation[1,2]. While the structural and dynamical properties of water at interfaces differ strongly from those in the bulk, major
Externí odkaz:
http://arxiv.org/abs/1810.00650
Autor:
Tamtögl, Anton, Davey, Benjamin, Ward, David J., Jardine, Andrew P., Ellis, John, Allison, William
Publikováno v:
Rev. Sci. Instrum. 89, 023902 (2018)
Spin-echo instruments are typically used to measure diffusive processes and the dynamics and motion in samples on ps and ns timescales. A key aspect of the spin-echo technique is to determine the polarisation of a particle beam. We present two method
Externí odkaz:
http://arxiv.org/abs/1801.08168