Aller au contenu principal
  • Paul Scherrer Institut PSI
  • PSI Research, Labs & User Services

Digital User Office

  • Digital User Office
  • DE
  • EN
  • FR
Paul Scherrer Institut (PSI)
Rechercher
Paul Scherrer Institut (PSI)

Hauptnavigation

  • Research at PSIOuvrir ce point de menu principal
    • Research Initiatives
    • Ethics and Research integrity
    • Scientific Highlights
    • Scientific Events
    • Scientific Career
    • PSI-FELLOW
    • PSI Data Policy
  • Research Divisions and LabsOuvrir ce point de menu principal
    • Overview
    • Research with Neutrons and Muons
    • Photon Science
    • Energy and Environment
    • Nuclear Energy and Safety
    • Biology and Chemistry
    • Scientific Computing, Theory and Data
    • Large Research Facilities
  • Facilities and InstrumentsOuvrir ce point de menu principal
    • Overview
    • Large Research Facilities
    • Facilities
    • PSI Facility Newsletter
  • PSI User ServicesOuvrir ce point de menu principal
    • User Office
    • Methods at the PSI User Facilities
    • Proposals for beam time
    • Proposal Deadlines
    • Data Analysis Service (PSD)
    • EU support programmes
  • New ProjectsOuvrir ce point de menu principal
    • SLS 2.0
    • IMPACT
  • DE
  • EN
  • FR

Digital User Office (mobile)

  • Digital User Office

Vous êtes ici:

  1. PSI Home
  2. Labs & User Services
  3. PSD
  4. SLS
  5. XTreme

Navigation secondaire

XTreme

  • Status
  • User Information
    • Operation Schedule
    • Manuals
    • FAQ
  • People
  • Beamline Layout
    • Source
    • Optics
  • Endstations
  • Publications
  • Scientific Highlights and News
  • Contacts

Info message

Ce contenu n'est pas disponible en français.
X-Treme pic.JPG

X-Treme / X07MA: X-ray absorption spectroscopy at high magnetic field and low temperature

The X-Treme beamline, run by the Microscopy and Magnetism Group, produces a high flux of soft x-rays with variable polarization (circular left, circular right and linear polarization in any angle between 0 and 90 degrees) from an Apple-II undulator source.

The end station is equipped with a superconducting 2D vector magnet operating at 7 T single direction or 2 T vectorial field and a 2 K sample insert. The end-station is also equipped with an in-situ sample preparation system and a variable-temperature scanning tunneling microscope. In order to prepare for their experiment, users are asked to look at the end-station webpage, at the user information webpage and at our frequently asked questions section.

The beamline mostly focuses on measurements involving x-ray magnetic circular and linear dichroism at transition metal L2,3-edges (transition 2p -> 3d), lanthanide M4,5 edges (transition 3d -> 4f) and oxygen or nitrogen K-edges (transition 1s -> 2p). Typical systems studied are single atoms on surfaces; molecules or single-molecule magnets in bulk or on surfaces; superlattices and ultra-thin films. Different detection modes are available: total electron yield, total fluorescence yield, transmission and x-ray excited optical luminescence.

The X-Treme beamline and end station were constructed by a consortium including PSI (Microscopy and Magnetism group, SLS) and the group of Prof. Harald Brune, Laboratory of Nanostructures at Surfaces at EPFL. The funding for the beamline construction was provided by PSI and the one for the end station from the EPFL and the Swiss National Science Foundation.

Energy range 400-2000 eV
Flux (700eV) 4 x 10^15 photons / s / 0.1%BW / 0.4 A
typically 10^12 photons / s at sample position (0.1 eV energy resolution, 700 eV photon energy)
Focused spot size exit slit µm x 230 µm (V x H)
Spectral resolution > 5000
Polarization Linear: 0 deg (horizontal) to 90 deg (vertical)
Circular: right / left

Current Highlights and News

2 février 2023
Teaser

Discovery of a large unquenched orbital moment in a 2D van der Waals ferromagnet

3d transition metals often exhibit a quenched orbital moment when in a solid state system. Therefore, the proposition of a large unquenched orbital moment for V in VI3 caused some surprise and discussion in the scientific community. Experimental and theoretical works diverge on the fact of whether the orbital moment is quenched or not. In our work we have been able to give an answer this open issue, proposing also a model for the ground state of VI3.

En savoir plus
15 décembre 2021
amb_cu_teaser

Fingerprint of Copper in Peptides Linked to Alzheimer's Disease

In an interdisciplinary project, researchers from the Laboratory of Nanoscale Biology in BIO  and the Laboratory for Condensed Matter in PSD have revealed the reaction between the nitrogen atoms of the amyloid-beta peptide and copper/zinc ions by using soft X-ray absorption spectroscopy.

En savoir plus
4 novembre 2021
Lithium Fluoride on Ag(100): Dendrites vs. Islands

Vastly Different Morphologies Dependent on the Growth Temperature

Lithium fluoride is an important material which is technologically exploited in spintronics and organic light emitting devices. It turns out that there is a vast difference between the morphologies of ultrathin lithium fluoride grown on the (100) facet of a silver single crystal.  At room temperature dendrites are obtained while at elevated temperature lithium fluoride forms square islands. The system is an interesting model to study the crossover between diffusion limited aggregates and island growth.

En savoir plus

Sidebar

SLS Quicklinks

  • Beamlines Overview
  • Scientific Highlights
  • Experiments at SLS

User Contact Points at PSI

PSI User Office
DUO Login

Call for Proposals

PX Beamlines: Call is open for proposals
More Information

All other Beamlines
08 February 2020: Call is open for proposals
More Information

Upcoming Events

Get a list of upcoming scientific conferences and seminars

PSI User Facilities Newsletter

Current News from PSI photon, neutron and muon user facilities
top

Pied de page

Paul Scherrer Institut

Forschungsstrasse 111
5232 Villigen PSI
Suisse

Téléphone: +41 56 310 21 11
Téléfax: +41 56 310 21 99

Comment nous trouver 
Contact

Centre de visiteurs psi forum
Laboratoire élèves iLab (en allemand)
Centre de protonthérapie
Centre de Formation du PSI
PSI Guest House (en anglais)
PSI Gastronomie (en allemand)
psi forum shop

Service & Support

  • Annuaire
  • User Office
  • Accelerator Status
  • Publications du PSI
  • Fournisseurs
  • E-facture
  • Computing (en anglais)
  • Sicherheit (en allemand)

Carrière

  • Travailler au PSI
  • Offres d'emploi
  • Formation initiale et formation continue
  • Career Center
  • Formation professionnelle (en allemand)
  • Centre de Formation du PSI

Pour les médias

  • Le PSI en bref
  • Chiffres et faits
  • Le coin médias
  • Communiqués de presse
  • Réseaux sociaux

Suivez le PSI: Twitter (in English) LinkedIn Youtube Facebook Instagram Issuu RSS

Footer legal

  • Impressum
  • Conditions d'utilisation
  • Login éditeurs