Focus Lectures

Here you can find information about the dates and program of the actual Focused Lectures. Details and supporting material of the past Lectures can be found in the archive section.

YR Focus Lecture - Program 2021

Several talks have been recorded and can be directly watched in the browser after logging in to the internal area (use the button "Internal" in the menu on the left). The recorded files can be found below the announcements of the talk, respectively. They are only for personal uses and must not be forwarded without permission from the coordinators.

Many thanks to German Hammerl for providing this opportunity and the technical support!

Focus Lecture - Frustrated Magetism

Focus Lecture given by Christian Balz from the ISIS Neutron and Muon Source. The talk introduces us to the concept of frustration in magnets. Different types of frustration are discussed, including geometric and exchange frustration, presented alongside case study examples.

8 September 2021, 10:00-11:30 AM

Focus Lecture - Exploring Time-Disorder in Crystals

Focus Lecture given by David Cortie from the Australian Nuclear Science and Technology Organisation. The talk introduces the concept of time-disorder in crystals using ab initio molecular dynamics.

18 August 2021, 10:00-11:30 AM

Focus Lecture - 13 Billion Years of Cosmic History

Focus Lecture given by Sabine Bellstedt from the University of Western Australia. The talk gives insights into the spectroscopic study of galaxy images to better help us to understand the history of our universe.

14 July 2021, 10:00-11:30 AM

Focus Lecture - Topology and Magnetic Semimetals

Focus Lecture presented by Andrew Boothroyd from the University of Oxford. The talk gives insights into the basic concepts of topology and presents some latest developments in designing materials that host Weyl fermions.

16 June 2021, 10:00-11:30 AM

Focus Lecture - High Pressure Physics

Focus Lecture given by Helen Maynard-Casely from the Australian Nuclear Science and Technology Organization. The presentation covers a wide variety of different topics, including how pressure is created in the lab, and the implications of pressure in our planetary system.

19 May 2021, 10:00-11:30 AM

Focus Lecture - Order, Disorder, Flexibility, Function

Focus Lecture given by Andrew Goodwin from the University of Oxford. The lecture presents how complex behavior can occur in systems as soon as disorder is introduced. Disorder can be the key to understanding many material properties and may provide the key to precisely tune materials to adjust their functionality. Moreover, Andrew will show how to apply these concepts in relevant material systems.

14 April 2021, 10:00-11:30 AM

Focus Lecture - Introduction to Neutron Scattering

Focus Lecture presented by Andrew Wildes from the Institut Laue-Langevin (ILL). Andrew introduces us to the measurement techniques of neutron scattering that are used across an abundance of different research fields.

19 March 2021, 10:00-11:30 AM

Focus Lecture on Many-Body Entanglement

We are happy to announce the next Focus Lecture held by Prof. Frank Pollmann (TU München). He will introduce the fascinating field of quantum entanglement to the Young Researchers. This concept was first discussed already 100 years ago by illustrious scientists like Schrödinger and Einstein.

Zoom Link
https://uni-augsburg.zoom.us/j/97196467819?pwd=NjhkZ21taURuRUQybkx1djVXMVlZUT09

Meeting-ID: 971 9646 7819
Kenncode: 5C#ye5

Many-Body Entanglement - Abstract

The notion of quantum entanglement goes back to the early years of quantum mechanics and was subject of several papers by Schrödinger. At the same time Einstein, Podolski, and Rosen discussed their famous "Gedankenexperiment" that attempted to show that quantum mechanical theory was incomplete. Quantum entanglement is a physical phenomenon that occurs when particles interact in a way such that the quantum state of each particle cannot be described independently of the state of the others--including when the particles are separated by a large distance. For a long time, it was a topic discussed mostly in quantum optics and for systems with few degrees of freedom. In the last decades, however, it has seen a revival with input from very different areas, including the theory of black holes, quantum information and communication, the numerical investigation of quantum-many body systems, as well as the characterization of topological quantum states and quantum phase transitions. In this lecture, I will introduce some basics of many-body entanglement and focus on a few selected applications.

29 March 2019

Focused Lecture on New Magnetic Materials

Another "Focused Lecture" of the Integrated Graduate School of the TRR 80 took place on Friday, 29th March 2019 at the Universität Augsburg. Oleg Janson (IFW, Dresden) and Alexander Tsirlin (Augsburg University) gave lectures on new magnetic materials (theory and experiments).

The lectures took place at Augsburg University in the seminar room S-403 and were transmitted to the TUM in Garching.

Abstract:

Magnetic phenomena are one of the key facets of correlated physics. In this Focus Lecture, we shall explain how magnetic behavior of real materials can be probed experimentally and understood on the microscopic level. The lecture will consist of three parts. In the first part, we shall present the most common techniques of magnetic characterization and showcase their typical pitfalls that occur in real experiments. In the second part, computational approaches to the ab initio modeling of magnetic interactions in real materials will be presented. The third part will provide the link between the previous two by showing how to go from the interaction parameters to the experimental magnetic response and vice versa, and which useful insights can be obtained in this way.

Supporting material of these talks is available here (for TRR80 members only; please login):

27 Oct 2017

Focused Lecture on Quantum Phase Transitions

Another "Focused Lecture" of the Integrated Graduate School of the TRR 80 took place on Friday, 27th October 2017 at the Technische Universität München. Stefan Kirchner (Zhejiang University, Hangzhou, China) and Michael Knap (TUM)  gave lectures on Quantum Phase Transitions.

The lectures took place at TUM in the E21 seminar room and were transmitted to Augsburg University. The transmission was provided via Adobe Connect, so that everyone could watch the talks on his individual PC or mobile device. All you needed was a web browser with the Adobe Flash and Adobe Connect add-in installed (Firefox, Chrome, Safari, InternetExplorer) or the free Adobe Connect app on your mobile device.

Web-link to the conference call: https://webconf.vc.dfn.de/trr80fl/

Choose a user name and enter the password: TRR80

14 Dec 2016

Focused Lecture on High Pressures

Another "Focused Lecture" of the Integrated Graduate School of the TRR 80 took place on Wednesday, 14 December 2016 at the Technische Universität München. Elena Hassinger (TUM/CPFS) and James Schilling (Washington University in St. Louis) gave lectures on high pressure experiments

The lectures took place at TUM in the E21 seminar room and were transmitted to Augsburg University (room S-403).

29 January 2016

Focused Lecture on Spin Currents

A Focused Lecture on "Spin Currents" took place on Friday, January 29th at TUM, Garching.

Speakers:

Sebastian Gönnenwein (WMI)

Yuriy Mokrousov (Jülich)

The Lectures were be transmitted to Augsburg via video conference (room S-403).

27 March 2015

Focused Lecture on Spinwaves

Another "Focused Lecture" of the Integrated Graduate School of the TRR 80 took place on Friday, 27 March 2015 at the Technische Universität München. Astrid Schneidewind (MLZ Garching) and Sandor Toth (PSI Villingen) gave two lectures on spinwaves.

The lectures took place at TUM in the seminar room of the entrance building of MLZ (Glaspalast) and were transmitted to Augsburg University (room S-403). The workshop took place in the seminar room of E21 (PH2224).

23 January 2015

Focused Lecture on Quantum Phase Transitions

Another "Focused Lecture" of the Integrated Graduate School of the TRR 80 took place on Friday, 23 January 2015 at the Augsburg University. The speakers were Matthias Vojta (TU Dresden) and Philipp Gegenwart (Augsburg University).

The lectures took place at Augsburg University (room S-403) and were transmitted via Video-Conference to Garching (seminar room of E21, room 2224).

Schedule

Supporting material of these talks is available here (visible only for logged-in TRR 80 members):

7 November 2014

Another "Focused Lecture" of the Integrated Graduate School of the TRR80 took place on Friday, 7th November 2014 at the TUM in Garching, starting at 13:30. Dr. Manuel Bibes from Unité Mixte de Physique CNRS/Thales, Paris, France, gave two lectures about Oxide Spintronics.

It took place in Garching ("Glaspalast": seminar room of the entrance building of FRM II) and was transmitted via Video-Conference to Augsburg University (room 403).

Abstract:

Spintronics is a branch of electronics in which transport phenomena are dependent on the electron spin. Future spintronics devices will be built from elemental blocks allowing the electrical injection, propagation, manipulation and detection of spin- based information. Owing to their remarkable multi-functional and strongly correlated character, oxide materials already provide building blocks for charge-based devices such as ferroelectric field effect transistors (FETs), as well as for spin-based two-terminal devices such as magnetic tunnel junctions.

In this lecture, I will first present results obtained on such oxide based tunnel junctions using half-metallic electrodes of e.g. manganese perovskites. I will discuss the spin-filtering effect by which highly spin-polarized currents can be generated through tunneling across a thin ferromagnetic or ferrimagnetic insulator (EuO, BiMnO3, spinel ferrites), useable to obtain tunnel magnetoresistance. Then, I will review how oxide heterostructures can be designed to control magnetic and spin properties by an electric field, with a view towards spintronics architectures fully controlled by electrical means. Finally, I will discuss perspectives for spin injection and spin transport into non-magnetic oxide channels such as the LaAlO3-SrTiO3 interface system.