Direkt zum Inhalt
  • DE
  • EN
  • FR
Paul Scherrer Institut (PSI) Paul Scherrer Institut (PSI)
Suche
Paul Scherrer Institut (PSI) Paul Scherrer Institut (PSI)

Hauptnavigation

  • Labs & User ServicesÖffnen dieses Hauptmenu Punktes
    • Overview
    • Research at PSI
    • Research Divisions and Labs
    • Facilities and Instruments
    • Research Initiatives
    • PSI User Labs
    • Scientific Highlights
    • Scientific Events
    • Scientific Career
    • Useroffice
  • BesucherÖffnen dieses Hauptmenu Punktes
    • Übersicht
    • Kontakt
    • Der Weg zu uns
    • Veranstaltungen am PSI
    • Besucherzentrum psi forum
    • Schülerlabor iLab
    • Zentrum für Protonentherapie
  • IndustrieÖffnen dieses Hauptmenu Punktes
    • Übersicht
    • Technologietransfer
    • Spin-off-Firmen
    • PARK innovAARE
  • Unsere ForschungÖffnen dieses Hauptmenu Punktes
    • Aktuelles aus unserer Forschung
    • Materie und Material
    • Mensch und Gesundheit
    • Energie und Umwelt
    • Grossforschungsanlagen
    • Allgemeine Broschüren
    • Filme
    • Für die Medien
  • Karriere & WeiterbildungÖffnen dieses Hauptmenu Punktes
    • Stellenangebote
    • Personalpolitik
    • Arbeiten am PSI
    • Chancengleichheit, Diversität & Inklusion
    • Aus- und Weiterbildung
    • Berufsbildung / Lehrstellen
    • PSI Bildungszentrum
    • Förderprogramm "PSI Career Return Program"
    • PSI-FELLOW/COFUND
  • Über das PSIÖffnen dieses Hauptmenu Punktes
    • Das PSI in Kürze
    • Strategie
    • Leitbilder
    • Zahlen und Fakten
    • Organisation
    • Lieferanten
    • Kunden E-Billing
    • IT und Computing
    • Sicherheit am PSI

Sie befinden sich hier:

  1. PSI Home
  2. Labs & User Services
  3. PSD
  4. LMN
  5. Research Groups
  6. Quantum Technologies
  7. Current projects
  8. YIG: nonlinear magnonics

Sekundäre Navigation

Laboratory for Micro and Nanotechnology

  • About LMN
    • Organisational Structure
  • Open Positions
  • People
  • Research Groups Ausgeklappter Submenü Punkt
    • Nanotechnology
    • X-ray Optics and Applications
      • X-ray Optics for Imaging and Spectroscopy
        • Fresnel Zone Plate for X-ray Microscopy
        • Blazed X-ray Optics
        • Zernike X-ray Phase Contrast Microscopy
        • Fresnel Zone Plates for RIXS
        • Refractive Lenses by 2 Photon 3D Lithography
      • Wavefront Metrology and Manipulation
        • Vortex Fresnel Zone Plates
        • Grating-based Wavefront Metrology
      • X-ray Optics for XFELs
        • Diamond Fresnel Zone Plates
        • Beam Splitter Gratings for Spectral Monitoring
        • A Delay Line for Ultrafast Pump-Probe Experiments
        • X-ray Streaking for Ultrafast Processes
    • Polymer Nanotechnology
      • Nanoimprint Lithography
      • Three Dimensional Structures
    • Molecular Nanoscience
      • On-surface Chemistry
      • Spins in Molecular Monolayers
      • SiC: Surfaces and Interfaces
      • Our Research Team
    • Advanced Lithography and Metrology
      • EUV Interference Lithography
      • EUV Lensless Imaging
      • ALM Nanoscience
    • Quantum Technologies Ausgeklappter Submenü Punkt
      • News and highlights
      • People
      • Open positions
      • Current projects Ausgeklappter Submenü Punkt
        • 2D semiconductor devices
        • CDW-based memory devices
        • Imaging quantum many-body states
        • Nonlinear magnonics
        • Rare-earth quantum magnets
        • Strained Germanium laser
      • Techniques
        • Cristallina-Q
        • IR beamline
        • Nano-fabrication
      • Publications
      • QTC@PSI
  • Facilities and Equipment
    • Cleanroom Labs
    • Surface Science Lab
    • Scanning Electron Microscopy
    • Scanning Probe Microscopy
    • PEARL Beamline
    • XIL Facility at the SLS
    • Nanoimprint Facilities
    • Electron Beam Lithography
  • LMN News
  • LMN Highlights
    • Archive
  • Publications
    • Publications 2011 - 2016

Info message

Dieser Inhalt ist nicht auf Deutsch verfügbar.

Nonlinear magnonics

Magnonics, the study and development of devices utilising collective spin excitations, is a rapidly growing field, covering both fundamental topics (antiferromagnetism[1], quasiparticle condensates[2]) and technological applications (MRAM[3], spintronics[4]). We use a host of optical, electrical and x-ray based techniques to study the nonlinear and quantum regimes of magnonics, with the goal of utilising such processes in future magnonic technologies.

spinwaves

Phase resolved measurement of spin waves in YIG.  Scanning x-ray microscope images are acquired synchronously with a CW RF excitation. The signal (3.5 GHz) is applied to the sample via a transmission line, exciting spin wave modes according to the external field and resulting dispersion. a) shows a transmission snapshot, the dark region is the RF line, the light grey region is the YIG, with the subtle changes in contrast being dynamic magnetic contrast. b)-f) show the amplitude and phase of the dynamics at the excitation frequency extracted via an FFT and mapped onto the brightness and hue channel in a hue saturation brightness (HSB) colour space.

The study of magnons, the quasiparticle description of collective spin excitations, and magnonics, the development of devices utilizing magnons to perform information processing tasks, are rapidly growing fields covering many important fundamental and technological topics1. A frequently proffered advantage of magnonics over conventional electronics is the lack of ohmic losses in the flow of magnons. This advantage is mute however in the presence of other significant dissipative losses such as Gilbert damping. Yttrium iron garnet (YIG), a ferrimagnetic insulating oxide, has long been appreciated in the context of high-Q microwave filters that make use of its sharp ferromagnetic resonance. However, the long magnon lifetime, with damping values up to three orders of magnitude lower than conventional metallic magnetic materials, along with advances in thin film growth and processing capabilities has seen a resurgence of interest in YIG from the magnonics community2.  

A phenomena closely linked to the extremely long lifetimes of magnons in YIG is their reported Bose-Einstein condensation (BEC) at room temperature3. A finding that has raised many questions about the nature of a quasiparticle BEC in quasi-equilibrium, its relation to traditional BECs familiar from cold atom physics, and other types of macroscopic coherent phenomena. From an applications perspective the incorporation of condensate related phenomena to the magnonics toolbox would open the door to supercurrents of magnons4 and quantum information processing5.  

The goal of this project is to use new x-ray techniques to study such exotic magnonic phenomena with a goal of developing devices. 

 

Project members

Joe Bailey
Dr. Joe Martin Bailey

Post-Doc

+41 56 310 25 60
joe.bailey@psi.ch
Gabiel Aeppli
Prof. Dr. Gabriel Aeppli

Head of Photon Science Division (PSD)
 

+41 56 310 42 32
gabriel.aeppli@psi.ch

1.    Chumak, A. V., Vasyuchka, V. I., Serga, A. A. & Hillebrands, B. Magnon spintronics. Nat. Phys. 11, 453–461 (2015).

2.    Nakata, K., Simon, P. & Loss, D. Spin currents and magnon dynamics in insulating magnets. J Phys D Appl Phys 50, 114004–20 (2017).

3.    Demokritov, S. O. et al. Bose-Einstein condensation of quasi-equilibrium magnons at room temperature under pumping. Nature 443, 430–433 (2006).

4.    Bozhko, D. A. et al. Supercurrent in a room-temperature Bose–Einstein magnon condensate. Nat. Phys. 12, 1057–1062 (2016).

5.    Tabuchi, Y. et al. Coherent coupling between a ferromagnetic magnon and a superconducting qubit. Science 349, 405–408 (2015).

 

Mit Sidebar

Contact

Dr. Simon Gerber

Laboratory for Micro-
and Nanotechnology
Paul Scherrer Institut
5232 Villigen PSI
Switzerland

Telephone:
+41 56 310 
Telefax:
+41 56 210 2646
E-mail:
simon.gerber@psi.ch
top

Fussbereich

Paul Scherrer Institut

Forschungsstrasse 111
5232 Villigen PSI
Schweiz
Der Weg zu uns 

Impressum
Nutzungsbedingungen

Login

Telefon: +41 56 310 21 11
Telefax: +41 56 310 21 99
Kontaktformular

Besucherzentrum psi forum
Schülerlabor iLab
Zentrum für Protonentherapie

Folgen Sie uns: Twitter (deutsch) LinkedIn Youtube Issuu RSS

Quicklinks

  • Telefonbuch/​Personensuche
  • Digital User Office
  • Technologietransfer
  • Publikationen des PSI
  • Computing
  • Sicherheit
  • Stellenangebote
  • Berufsbildung
  • Lieferanten
  • Kunden E-Billing
  • PSI Guest House
  • PSI Gastronomie

Für die Medien

  • Medienkontakt
  • Medienmitteilungen
  • Social Media Newsroom
  • Zahlen und Fakten
  • Das PSI in Kürze
  • Filme und Videos
  • DE
  • EN
  • FR