Direkt zum Inhalt
  • Paul Scherrer Institut PSI
  • PSI Research, Labs & User Services

Digital User Office

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

Hauptnavigation

  • Research at PSIÖffnen dieses Hauptmenu Punktes
    • Research Initiatives
    • Ethics and Research integrity
    • Scientific Highlights
    • Scientific Events
    • Scientific Career
    • PSI-FELLOW
    • PSI Data Policy
  • Research Divisions and LabsÖffnen dieses Hauptmenu Punktes
    • 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 InstrumentsÖffnen dieses Hauptmenu Punktes
    • Overview
    • Large Research Facilities
    • Facilities
    • PSI Facility Newsletter
  • PSI User ServicesÖffnen dieses Hauptmenu Punktes
    • User Office
    • Methods at the PSI User Facilities
    • Proposals for beam time
    • Proposal Deadlines
    • Data Analysis Service (PSD)
    • EU support programmes
  • New ProjectsÖffnen dieses Hauptmenu Punktes
    • SLS 2.0
    • IMPACT
  • DE
  • EN
  • FR

Digital User Office (mobile)

  • Digital User Office

Sie befinden sich hier:

  1. PSI Home
  2. Labs & User Services
  3. PSD
  4. SLS
  5. SIS
  6. Endstations

Sekundäre Navigation

SIS

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

Info message

Dieser Inhalt ist nicht auf Deutsch verfügbar.

Endstations


ULTRA: Low-temperature high-resolution angle-resolved photoemission spectroscopy

The ULTRA endstation is a new low-temperature high-resolution endstation that replaces the former high-resolution system at SIS. ULTRA is designed for demanding investigations of the electronic band structures of novel complex materials. The endstation is based around a new PSI-designed 6-axis manipulator that can operate from room temperature down to 4 Kelvin (4.4 K in continuous flow mode, 3.8 K in "single shot" mode). Like its so-called "CARVING" predecessors, the new manipulator has high mechanical resolution and repeatability and low thermal drift. ULTRA is furthermore equipped with a Scienta Omicron DA30-L spectrometer offering "DA" deflection-mode scanning, energy resolution down to 1.6 meV, and angular resolution of 0.1°.

Sample conditions

As of ULTRA's launch in the winter of 2020, samples can be cleaved in vacuum on the manipulator at any temperature. Surface deposition of alkali metals is also possible. As ULTRA is a new station, new features/improvements are regularly being incorporated, with plans for simple sputtering/annealing/evaporation capabilities to be added in the coming months.

Sample holders for ULTRA are based on the popular "Omicron" format.

An MCP-LEED system is available on the endstation for characterizing sample surfaces.

For more information please contact the beamline staff.


COPHEE: Spin- and angle-resolved photoemission spectroscopy

The COmplete PHotoEmission Experiment (COPHEE) measures the three-dimensional spin polarization vector of a electronic state in combination with its energy vs. momentum dispersion, thus rendering a spin-resolved and structure determination. The spectrometer is equipped with two orthogonally mounted classical Mott detectors, allowing the simultaneous detection of all three spatial components of the spin expectation value. In the spin-resolved modus the energy and angular resolution are 80 meV and ±0.75° respectively, whereas 25 meV and ±0.3° can be reached without spin resolution.

Samples can be transferred into UHV by a fast load lock and temporarily stored under UHV conditions. The endstation contains all typical surface science techniques with regard to sample preparation and characterization (evaporation, gas dosing, ion sputtering, annealing, LEED). Currently the temperature range during measurements is 15-300 K on the 6-axis "CARVING" manipulator.

For more information on the details of the endstation, analysis methods, or a review of the technique and possible application the following publications are recommended:

  • J. H. Dil, Topical Review in J. Phys. Condens. Matter 21, 403001 (2009).
  • F. Meier, J. H. Dil, and J. Osterwalder New Journal of Physics 11, 125008 (2009)
  • M. Hoesch et al., J. Electron Spectrosc. Relat. Phenom. 124, 263 (2002).
COPHEE endstation
COPHEE endstation

Mit Sidebar

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

Fussbereich

Paul Scherrer Institut

Forschungsstrasse 111
5232 Villigen PSI
Schweiz

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

Der Weg zu uns
Kontakt

Besucherzentrum psi forum
Schülerlabor iLab
Zentrum für Protonentherapie
PSI Bildungszentrum
PSI Guest House (in english)
PSI Gastronomie
psi forum-Shop

 

Service & Support

  • Telefonbuch
  • User Office
  • Accelerator Status
  • Publikationen des PSI
  • Lieferanten
  • E-Rechnung
  • Computing
  • Sicherheit

Karriere

  • Arbeiten am PSI
  • Stellenangebote
  • Aus- und Weiterbildung
  • Career Center
  • Berufsbildung
  • PSI Bildungszentrum

Für die Medien

  • Das PSI in Kürze
  • Zahlen und Fakten
  • Mediacorner
  • Medienmitteilungen
  • Social Media

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

Footer legal

  • Impressum
  • Nutzungsbedingungen
  • Editoren-Login