Zobrazeno 1 - 10
of 4 756
pro vyhledávání: '"Ward , David"'
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
Sulfur vacancy defects mediate a wide range of optoelectronic properties in MoS2, with precise control of defect density allowing for tuneable optoelectronic devices. However, accurate measurement of defect density in monolayer and few-layer samples
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
We report on a method for using stereolithographic (SLA) additive manufacturing to rapidly and cheaply prototype components for use in high-vacuum environments. We demonstrate the primary vacuum contaminant from freshly printed SLA plastics is water
Externí odkaz:
http://arxiv.org/abs/2406.08326
Autor:
Aoki, Sinya, Aoki, Yasumichi, Fukaya, Hidenori, Hashimoto, Shoji, Kanamori, Issaku, Kaneko, Takashi, Nakamura, Yoshifumi, Rohrhofer, Christian, Suzuki, Kei, Ward, David
We study the $U(1)_A$ anomaly at high temperatures of $N_f=2+1$ lattice QCD with chiral fermions. Gauge ensembles are generated with M\"obius domain-wall (MDW) fermions, and the measurements are reweighted to those with overlap fermions. We report on
Externí odkaz:
http://arxiv.org/abs/2401.14022
Autor:
Ward, David, Aoki, Sinya, Aoki, Yasumichi, Fukaya, Hidenori, Hashimoto, Shoji, Kanamori, Issaku, Kaneko, Takashi, Goswami, Jishnu, Zhang, Yu
Based on simulations of 2+1 flavor lattice QCD with M\"obius domain wall fermions at high temperatures, we compute a series of spatial correlation functions to study the screening masses in mesonic states. We compare these masses with the symmetry re
Externí odkaz:
http://arxiv.org/abs/2401.07514
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