Zobrazeno 1 - 10
of 1 796
pro vyhledávání: '"Maxson P"'
Autor:
Pennington, C., Gaowei, M., Echeverria, E. M., Evans-Lutterodt, K., Galdi, A., Juffmann, T., Karkare, S., Maxson, J., van der Molen, S. J., Saha, P., Smedley, J., Stam, W. G., Tromp, R. M.
Alkali antimonides are well established as high efficiency, low intrinsic emittance photocathodes for accelerators and photon detectors. However, conventionally grown alkali antimonide films are polycrystalline with surface disorder and roughness tha
Externí odkaz:
http://arxiv.org/abs/2407.12224
Autor:
Kachwala, Alimohammed, Rizi, Mansoure Moeini, Pierce, Christopher M, Filippetto, Daniele, Maxson, Jared, Karkare, Siddharth
In this paper we demonstrate the use of plasmonic focusing in conjunction with non-linear photoemisison to develop geometrically flat nanoscale electron sources with less than 40 pm-rad root mean squared (rms) normalized transverse emittance. Circula
Externí odkaz:
http://arxiv.org/abs/2406.08678
Autor:
Levenson, S. J., Andorf, M. B., Dickensheets, B. D., Bazarov, I. V., Galdi, A., Encomendero, J., Protasenko, V. V., Jena, D., Xing, H. G., Maxson, J. M.
Spin-polarized photoemission from wurtzite and zinc-blende gallium nitride (GaN) photocathodes has been observed and measured for the first time. The p-doped GaN photocathodes were epitaxially grown and activated to negative electron affinity (NEA) w
Externí odkaz:
http://arxiv.org/abs/2405.04481
Autor:
Li, W. H., Bartnik, A. C., Fukasawa, A., Kaemingk, M., Lawler, G., Majernik, N., Rosenzweig, J. B., Maxson, J. M.
Achieving maximum electron beam brightness in photoinjectors requires detailed control of the 3D bunch shape and precise tuning of the beam focusing. Even in state-of-the-art designs, slice emittance growth due to nonlinear space charge forces and pa
Externí odkaz:
http://arxiv.org/abs/2404.06312
Autor:
Loh, William, Reens, David, Kharas, Dave, Sumant, Alkesh, Belanger, Connor, Maxson, Ryan T., Medeiros, Alexander, Setzer, William, Gray, Dodd, DeBry, Kyle, Bruzewicz, Colin D., Plant, Jason, Liddell, John, West, Gavin N., Doshi, Sagar, Roychowdhury, Matthew, Kim, May, Braje, Danielle, Juodawlkis, Paul W., Chiaverini, John, McConnell, Robert
Optical atomic clocks have demonstrated revolutionary advances in precision timekeeping, but their applicability to the real world is critically dependent on whether such clocks can operate outside a laboratory setting. The challenge to clock portabi
Externí odkaz:
http://arxiv.org/abs/2403.12794
Autor:
Maxson, Tristan, Szilvasi, Tibor
Machine learning interatomic potentials (MLIPs) are an emerging modeling technique that promises to provide electronic structure theory accuracy for a fraction of its cost, however, the transferability of MLIPs is a largely unknown factor. Recently,
Externí odkaz:
http://arxiv.org/abs/2402.16204
Recent developments in machine learning interatomic potentials (MLIPs) have empowered even non-experts in machine learning to train MLIPs for accelerating materials simulations. However, the current literature lacks clear standards for documenting th
Externí odkaz:
http://arxiv.org/abs/2401.02284
Autor:
Yang, X., Wang, L., Maxson, J., Bartnik, A., Kaemingk, M., Wan, W., Cultrera, L., Wu, L., Smaluk, V., Shaftan, T., McSweeney, S., Jing, C., Kostin, R., Zhu, Y.
Driven by life-science applications, mega-electron-volt Scanning Transmission Electron Microscope (MeV-STEM) has been proposed to image thick biological samples. The high penetration of inelastic scattering signals of MeV electrons could make the MeV
Externí odkaz:
http://arxiv.org/abs/2311.04006
Autor:
Mortensen, Jens Jørgen, Larsen, Ask Hjorth, Kuisma, Mikael, Ivanov, Aleksei V., Taghizadeh, Alireza, Peterson, Andrew, Haldar, Anubhab, Dohn, Asmus Ougaard, Schäfer, Christian, Jónsson, Elvar Örn, Hermes, Eric D., Nilsson, Fredrik Andreas, Kastlunger, Georg, Levi, Gianluca, Jónsson, Hannes, Häkkinen, Hannu, Fojt, Jakub, Kangsabanik, Jiban, Sødequist, Joachim, Lehtomäki, Jouko, Heske, Julian, Enkovaara, Jussi, Winther, Kirsten Trøstrup, Dulak, Marcin, Melander, Marko M., Ovesen, Martin, Louhivuori, Martti, Walter, Michael, Gjerding, Morten, Lopez-Acevedo, Olga, Erhart, Paul, Warmbier, Robert, Würdemann, Rolf, Kaappa, Sami, Latini, Simone, Boland, Tara Maria, Bligaard, Thomas, Skovhus, Thorbjørn, Susi, Toma, Maxson, Tristan, Rossi, Tuomas, Chen, Xi, Schmerwitz, Yorick Leonard A., Schiøtz, Jakob, Olsen, Thomas, Jacobsen, Karsten Wedel, Thygesen, Kristian Sommer
Publikováno v:
Journal of Chemical Physics 160, 092503 (2024)
We review the GPAW open-source Python package for electronic structure calculations. GPAW is based on the projector-augmented wave method and can solve the self-consistent density functional theory (DFT) equations using three different wave-function
Externí odkaz:
http://arxiv.org/abs/2310.14776
Autor:
Parzyck, C. T., Pennington, C. A., DeBenedetti, W. J. I., Balajka, J., Echeverria, E., Paik, H., Moreschini, L., Faeth, B. D., Hu, C., Nangoi, J. K., Anil, V., Arias, T. A., Hines, M. A., Schlom, D. G., Galdi, A., Shen, K. M., Maxson, J. M.
Publikováno v:
APL Mater. 11, 101125 (2023)
Alkali antimonide semiconductor photocathodes provide a promising platform for the generation of high brightness electron beams, which are necessary for the development of cutting-edge probes including x-ray free electron lasers and ultrafast electro
Externí odkaz:
http://arxiv.org/abs/2305.19553