Labs and instruments

X-ray Absorption Spectroscopy PIRX

The PIRX (Premiere InstRument for Xas) beamline (former PEEM/XAS) is dedicated to spectroscopy in the absorption of soft X-rays and is equipped with a universal station for X-ray absorption spectroscopy (XAS). The beamline is designed to study chemical and electronic and magnetic properties by means of XAS and XMCD (X-ray magnetic circular dichroism), respectively. It is suitable for probing element specific properties of surfaces, interfaces, thin films and nanomaterials.

Contact: Marcin Zając
Tel: +48 12 664 4159 (office) | +48 12 664 4192 (beamline)

Technical specifications

The end station is served by beamline, which can deliver linearly (horizontal) and elliptically polarized light in the photon energy range 100–2000 eV.

Beam size at sample (horizontal x vertical): 250 µm x 40 µm. Energy resolution (ΔE/E) not worse than 2.5 x 10^-4.

Detection modes:
– total electron yield (TEY)
– partial fluorescent yield (PFY) using SDD Amptek detector
– transmission using AXUV photodiode

Sample environment

The end station is a UHV system equipped with two-chambers (one for spectroscopy and other for preparation). For sample a standard flag-style (Omicron plate) sample holder is used. The available detection mode are described at the beamline website. The 4-axes cryogenic manipulator allows for measurements in broad temperature range (20-670 K) and external magnetic field of maximum 1.4 kOe in direction parallel to the beam. Available facilities of preparation chamber are several evaporation sources, a quadrupole mass spectrometer, manipulator with sample preparation temperature from 100 K to 2000 K, LEED and Auger spectrometer, a precision leak valves, ion sputtering source and a sample storage.

Detailed information can be found on the beamline’s main homepage.