Title: Spin wave dynamics in ultrathin yttriumiron garnet measured with x-ray microscopy Speaker: Joe Bailey, from the PSI (Switzerland) Time: 10:30-11am Fika / 11-12am Talk Abstract: Magnonics, the study and development of devices utilising collective spin excitations, is a rapidly growing field, covering both fundamental topics (antiferromagnetism, quasiparticle condensates) and technological applications (MRAM, spintronics). Yttrium […]

Details: TBA https://www.kva.se/en/pressrum

Abstract: Weyl points trapped within a C_2T-symmetric plane (C2 = 180 degrees rotation, and T = time reversal) possess non-Abelian topological charges on top of their chirality. E.g. three-level systems realize the quaternion group. This picture requires to go beyond the modeling of a band structure as a Grassmannian (where a single spectral gap is […]

Speaker: Ilaria Maccari (KTH)   Title: Vortex physics in 2D disordered superconductors   Time: Tuesday 29th of October, Fika 10:30-11:00 , Seminar 11:00-12:00,   Place: Nordita South, room 112:028 . Abstract: The  study of quasi-two-dimensional (2D) superconductors can hardly avoid to take into account the presence of vortices. Many real systems, of both conventional and […]

Speaker: Sumanta Bandyopadhyay (NORDITA)   Title: Entangled Pauli Principles: the DNA of Quantum Hall Fluids   Time: Tuesday 5th of November, Fika 10:30-11:00 , Seminar 11:00-12:00,   Place: Nordita South, room 112:028 . Abstract: A formalism is developed for the rigorous study of solvable fractional quantum Hall parent Hamiltonians with Landau level mixing. The idea […]

Speaker: David Cassidy from the University College London. Title: Recent experimental progress in positronium-laser physics Time and place: Thursday November 7 at 15.15 (coffee and tea from 15.00) in the Oskar Klein auditorium FR4. Abstract: The field of experimental positronium physics has advanced significantly in recent years, in many cases by employing new techniques for trapping […]