Zobrazeno 1 - 10
of 552
pro vyhledávání: '"Ramasse, Quentin M."'
Autor:
Kepaptsoglou, Demie, Castellanos-Reyes, José Ángel, Kerrigan, Adam, Nascimento, Júlio Alves Do, Zeiger, Paul M., Hajraoui, Khalil El, Idrobo, Juan Carlos, Mendis, Budhika G., Bergman, Anders, Lazarov, Vlado K., Rusz, Ján, Ramasse, Quentin M.
The miniaturisation of transistors is approaching its limits due to challenges in heat management and information transfer speed. To overcome these obstacles, emerging technologies such as spintronics are being developed, which leverage the electron'
Externí odkaz:
http://arxiv.org/abs/2410.02908
Autor:
Nascimento, Julio A. do, Hasnip, Phil J., Cavill, S. A., Cossu, Fabrizio, Kepaptsoglou, Demie, Ramasse, Quentin M., Kerrigan, Adam, Lazarov, Vlado K.
We explore the inelastic spectra of electrons impinging in a magnetic system. The methodology here presented is intended to highlight the charge-dependent interaction of the electron beam in a STEM-EELS experiment, and the local vector potential gene
Externí odkaz:
http://arxiv.org/abs/2401.12302
Autor:
Nascimento, Julio A. do, Kerrigan, Adam, Cavill, S. A., Hasnip, Phil J., Kepaptsoglou, Demie, Ramasse, Quentin M., Lazarov, Vlado K.
We present a methodology based on the calculation of the inelastic scattering from magnons via the spin scattering function in confined geometries such as thin films using a second quantization formalism, for both ferromagnetic and antiferromagnetic
Externí odkaz:
http://arxiv.org/abs/2312.07715
Autor:
Conroy, Michele, Småbråten, Didrik René, Ophus, Colin, Shapovalov, Konstantin, Ramasse, Quentin M., Hunnestad, Kasper Aas, Selbach, Sverre M., Aschauer, Ulrich, Moore, Kalani, Gregg, J. Marty, Bangert, Ursel, Stengel, Massimiliano, Gruverman, Alexei, Meier, Dennis
Ferroelectric domain walls are a rich source of emergent electronic properties and unusual polar order. Recent studies showed that the configuration of ferroelectric walls can go well beyond the conventional Ising-type structure. N\'eel-, Bloch-, and
Externí odkaz:
http://arxiv.org/abs/2309.02068
Autor:
Castellanos-Reyes, José Ángel, Zeiger, Paul, Bergman, Anders, Kepaptsoglou, Demie, Ramasse, Quentin M., Idrobo, Juan Carlos, Rusz, Ján
Publikováno v:
Phys. Rev. B 108, 134435 (2023)
Magnon diffuse scattering (MDS) signals could be studied with high spatial resolution in scanning transmission electron microscopy (STEM), thanks to recent technological progress in electron energy loss spectroscopy. However, detecting MDS signals in
Externí odkaz:
http://arxiv.org/abs/2302.11462
Publikováno v:
In Geochimica et Cosmochimica Acta 1 August 2024 378:153-167
Autor:
Lyon, Keenan, Bergman, Anders, Zeiger, Paul, Kepaptsoglou, Demie, Ramasse, Quentin M., Idrobo, Juan Carlos, Rusz, Ján
We present a theory and a simulation of thermal diffuse scattering due to the excitation of magnons in scanning transmission electron microscopy. The calculations indicate that magnons can present atomic contrast when detected by electron energy-loss
Externí odkaz:
http://arxiv.org/abs/2105.04467
Publikováno v:
In Journal of Magnesium and Alloys March 2024 12(3):980-996
Autor:
Zamani, Reza R., Hage, Fredrik S., Eljarrat, Alberto, Namazi, Luna, Ramasse, Quentin M., Dick, Kimberly A.
The electronic band structure of complex nanostructured semiconductors has a considerable effect on the final electronic and optical properties of the material and, ultimately, on the functionality of the devices incorporating them. Valence electron
Externí odkaz:
http://arxiv.org/abs/2103.04632
Autor:
Steinvall, Simon Escobar, Ghisalberti, Lea, Zamani, Reza R., Tappy, Nicolas, Hage, Fredrik S., Stutz, Elias, Zamani, Mahdi, Paul, Rajrupa, Leran, Jean-Baptiste, Ramasse, Quentin M., Carter, W. Craig, Morral, Anna Fontcuberta i
Zinc phosphide, Zn3P2, nanowires constitute prospective building blocks for next generation solar cells due to the combination of suitable optoelectronic properties and an abundance of the constituting elements in the Earths crust. The generation of
Externí odkaz:
http://arxiv.org/abs/2009.01533