Zobrazeno 1 - 10
of 10 140
pro vyhledávání: '"Kochan A"'
Autor:
Nelson, A. O., Vincent, C., Anand, H., Lovell, J., Parisi, J. F., Wilson, H. S., Imada, K., Wehner, W. P., Kochan, M., Blackmore, S., McArdle, G., Guizzo, S., Rondini, L., Freiberger, S., Paz-Soldan, C.
A plasma scenario with negative triangularity (NT) shaping is achieved on MAST-U for the first time. While edge localized modes (ELMs) are eventually suppressed as the triangularity is decreased below $\delta$ < -0.06, an extended period of H-mode op
Externí odkaz:
http://arxiv.org/abs/2408.00180
Publikováno v:
Phys. Rev. B 110, 134511 (2024)
The superconducting diode effect (SDE) is a magneto-electric phenomenon where an external magnetic field imparts a non-zero center-of-mass momentum to Cooper pairs, either facilitating or hindering the flow of supercurrent depending on its direction.
Externí odkaz:
http://arxiv.org/abs/2406.08669
Publikováno v:
Phys. Rev. B 110, 075203 (2024)
The spread of valence band Wannier functions in semiconductors and insulators is a characteristic property that gives a rough estimation of how insulating is the material. We elaborate that the gauge-invariant part of the spread can be extracted expe
Externí odkaz:
http://arxiv.org/abs/2405.06146
Autor:
Kochan, Didem, Yang, Xiu
Gaussian process (GP) regression is a non-parametric, Bayesian framework to approximate complex models. Standard GP regression can lead to an unbounded model in which some points can take infeasible values. We introduce a new GP method that enforces
Externí odkaz:
http://arxiv.org/abs/2404.02873
Autor:
Kang, Wun-Hao, Barth, Michael, Garcia-Ruiz, Aitor, Mreńca-Kolasińska, Alina, Liu, Ming-Hao, Kochan, Denis
Graphene-based van der Waals heterostructures take advantage of tailoring spin-orbit coupling (SOC) in the graphene layer by proximity effect. At long-wavelength -- saddled by the electronic states near the Dirac points -- the proximitized features c
Externí odkaz:
http://arxiv.org/abs/2402.13424
Autor:
Reinhardt, Simon, Ascherl, Tim, Costa, Andreas, Berger, Johanna, Gronin, Sergei, Gardner, Geoffrey C., Lindemann, Tyler, Manfra, Michael J., Fabian, Jaroslav, Kochan, Denis, Strunk, Christoph, Paradiso, Nicola
Publikováno v:
Nature Communications, 15, 4413 (2024)
In Josephson diodes the asymmetry between positive and negative current branch of the current-phase relation leads to a polarity-dependent critical current and Josephson inductance. The supercurrent nonreciprocity can be described as a consequence of
Externí odkaz:
http://arxiv.org/abs/2308.01061
Ex-so-tic van der Waals heterostructures take advantage of the electrically tunable layer polarization to swap proximity exchange and spin-orbit coupling in the electronically active region. Perhaps the simplest example is Bernal bilayer graphene (BB
Externí odkaz:
http://arxiv.org/abs/2307.16025
Studies of the formation of Landau levels based on the Schr\"odinger equation for electrons constrained to curved surfaces have a long history. These include as prime examples surfaces with constant positive and negative curvature, the sphere [Phys.
Externí odkaz:
http://arxiv.org/abs/2307.09221
Autor:
Alqarni, Abdullah, Wen, Wei, Lam, Ben C. P., Kochan, Nicole, Brodaty, Henry, Sachdev, Perminder S., Jiang, Jiyang
Objectives: To examine sex differences in the associations between vascular risk factors and 6-year changes in the volume of white matter hyperintensities (WMH), and between changes in WMH volumes and changes in cognitive performance, in a cohort of
Externí odkaz:
http://arxiv.org/abs/2307.08828
The impact of proximity-induced spin-orbit and exchange coupling on the correlated phase diagram of rhombohedral trilayer graphene (RTG) is investigated theoretically. By employing \emph{ab initio}-fitted effective models of RTG encapsulated by trans
Externí odkaz:
http://arxiv.org/abs/2305.14277