4–15 Sept 2017
Europe/Zurich timezone
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Lectures description

PSI Masterschool 2017
Introduction photons, neutrons and muons for materials characterization


Below you will find the description of the lectures on the mornings of the first week.

All lectures will take place in room OSGA/UG05.

Click here to download the text below in pdf format.


Monday, Sept. 4th

8:30 - 9:15 - Frithjof Nolting
Overview of the three large scale facilities. Introduction to the facilities. Science examples of application. Presentation of the program of the two weeks.
9:30 - 10:15 - Laura Heyderman
Interaction of photons with matter. Electromagnetic Spectrum. Cross sections. Resonant events.
10:45 - 11:30 - Laura Heyderman
Introduction to the synchrotron and free electron laser operation. Radiation properties and production. Energy spectrum and polarization. Types of sources.
11:45 - 12:30 - Laura Heyderman
Synchrotron beamlines: optics, monochromators, detectors.

Tuesday, Sept. 5th

8:30 - 9:15 - Michel Kenzelmann
Introduction neutron properties, neutron sources, neutron detection, neutron optics.
9:30 - 10:15 - Michel Kenzelmann
Neutron scattering length, cross sections, form factors, scattering correlations functions, simple neutron scattering instruments.
10:45 - 11:30 - Laura Heyderman
Crystal symmetry, reciprocal lattice, Bragg’s law, structure factors.
11:45 - 12:30 - Michel Kenzelmann
Diffraction instruments, powder and single crystal (for both neutrons and X-rays), vortex lattice and skyrmions as an example.

Wednesday, Sept. 6th

8:30 - 9:15 - Frithjof Nolting
Introduction to electronic and magnetic correlation.
9:30 - 10:15 - Frithjof Nolting
Polarization dependent x-ray absorption.
10:45 - 11:30 - Frithjof Nolting
X-ray microscopy.
11:45 - 12:30 - Michel Kenzelmann
Magnetic structures, cross-sections, types of instruments, short introduction into polarized neutron diffraction.

Thursday, Sept. 7th

8:30 - 9:15 - Michel Kenzelmann
Neutron spectroscopy, cross-sections and correlation functions phonons, triple-axis neutron instruments.
9:30 - 10:15 - Michel Kenzelmann
Inelastic magnetic neutron scattering, magnons, quantum excitations.
10:45 - 11:30 - Frithjof Nolting
Photoemission.
11:45 - 12:30 - Frithjof Nolting
Time-resolved X-ray experiments - X-ray pump and probe.

Friday, Sept. 8th

8:30 - 9:15 - Alex Amato
What is a muon; What are its relevant properties for solid state/material physicist; How does one produce muons (differences between cosmic and “lab” muons); What kind of muon beams are available (high-energy muons, surface muons and low-energy muons) and their range in matter.
9:30 - 10:15 - Alex Amato
What are the basics of the muSR technique;  Description of the Zero-Field, Transverse Field and Longitudinal-Field techniques and what kind of information one can extract from them; Difference between LEM and bulk muSR; Short description of the hardware.
10:45 - 11:30 - Alex Amato
Application of muSR to study magnetism; Determination of the order parameter and volume fractions; Local field at muon site; Knight shift studies; Examples from LEM and bulk muSR.
11:45 - 12:30 - Alex Amato
Application of muSR to study superconducting state; Determination of the absolute value of the penetration depth (and hence superfluid density) from vortex state and/or Meissner state; Determination of the superconducting gap topology; Examples; Interplay magnetism/SC.