Registered participants of this class will be able to gain credits for the module "PHY_731s: Advanced Topics of Solid State Physics".

To gain these credits, students will need to (i) submit solutions for all homework questions on time, (ii) prepare and present one seminar, and (iii) pass a 30-minute oral exam at the end of the semester.

Moodle link

This class will be conducted online via Zoom. Lectures will be given live every Wednesday between 16:15 and 17:45. The seminar talks will be arranged for the second half of the semester and the topics will be discussed on the first lecture on 3 November 2020. Recitations will take place every Friday between 09:15 and 10:00.

Lectures will be recorded and will be made available to all registered participants for the duration of the semester. You are free to choose to attend the lecture live or to watch the videos later. If you participate in the live stream you will be able to ask questions via audio or via the chat. Please note that your audio will be recorded if you choose to ask your questions via voice. Chat messages will not be recorded. Because of the possibility of being part of the recording, we ask all live participants to sign the declaration of consent that you can find in the documents section. You will need to send the signed form to felix.buettner.1@uni-potsdam.de before the first live lecture that you participate in. We can only admit those who have signed the form. Note that your signature will be valid for the entire semester, unless you decide to revoke it.

In the declaration of consent, you will find a text field ”Bitte  Kontaktdaten  des  Instituts/des  Lehrstuhls/der  Einrichtung,  welche  das  Online‐Meeting durchführt und aufzeichnet, eintragen”. There, please enter the following:

Institut für Physik und Astronomie

Kontakt: Prof. Matias Bargheer, bargheer@uni-potsdam.de

and

Helmholtz-Zentrum Berlin

Kontakt: Dr. Felix Büttner, felix.buettner@helmholtz-berlin.de

Seminars and recitations will not be recorded.

Below is the information on the access the live lecture until Christmas. We will provide details on the 2021 slots in due time.

Every week on Wed, until Dec 16, 2020, 6 occurrence(s)

Nov 11, 2020 04:15 PM
Nov 18, 2020 04:15 PM
Nov 25, 2020 04:15 PM
Dec 2, 2020 04:15 PM
Dec 9, 2020 04:15 PM
Dec 16, 2020 04:15 PM
Please download and import the following iCalendar (.ics) files to your calendar system.
Weekly: https://uni-potsdam.zoom.us/meeting/u5wkdeGpqjgpG9271TVFK3J6bBjwibAKtAw9/ics?icsToken=98tyKu-gpzkiG9CWsxiOR_M-HYjoWevwiHZejfoPy07RNQZ4MSmgNMBIJbt9MfPE

Join Zoom Meeting
https://uni-potsdam.zoom.us/j/68928143319

Meeting ID: 689 2814 3319
Passcode: 65110320
One tap mobile
+493056795800,,68928143319#,,,,,,0#,,65110320# Germany
+496950502596,,68928143319#,,,,,,0#,,65110320# Germany

Dial by your location
+49 30 5679 5800 Germany
+49 695 050 2596 Germany
+49 69 7104 9922 Germany
Meeting ID: 689 2814 3319
Passcode: 65110320
Find your local number: https://uni-potsdam.zoom.us/u/cex5H6Lkei

Join by SIP
68928143319@zoomcrc.com

Join by H.323
213.19.144.110 (Amsterdam Netherlands)
213.244.140.110 (Germany)
Meeting ID: 689 2814 3319
Passcode: 65110320

Here is the information on how to access the recitation:

Every week on Fri, until Dec 18, 2020, 6 occurrence(s)
Nov 13, 2020 09:15 PM
Nov 20, 2020 09:15 PM
Nov 27, 2020 09:15 PM
Dec 4, 2020 09:15 PM
Dec 11, 2020 09:15 PM
Dec 18, 2020 09:15 PM
Please download and import the following iCalendar (.ics) files to your calendar system.
Weekly: https://uni-potsdam.zoom.us/meeting/u5wvceqvqD0rE90JqKPOkhCMR1wtpfp4OM6C/ics?icsToken=98tyKu-grD0pHdKTsRCOR_M-AI_ob-3wpiFcj_oNtg7OMw9YaiDbBLNVJqJ5AIz_

Join Zoom Meeting
https://uni-potsdam.zoom.us/j/68263766199

Meeting ID: 682 6376 6199
Passcode: 69315768
One tap mobile
+493056795800,,68263766199#,,,,,,0#,,69315768# Germany
+496950502596,,68263766199#,,,,,,0#,,69315768# Germany

Dial by your location
+49 30 5679 5800 Germany
+49 695 050 2596 Germany
+49 69 7104 9922 Germany
Meeting ID: 682 6376 6199
Passcode: 69315768
Find your local number: https://uni-potsdam.zoom.us/u/cc69NVd4nt

Join by SIP
68263766199@zoomcrc.com

Join by H.323
213.19.144.110 (Amsterdam Netherlands)
213.244.140.110 (Germany)
Meeting ID: 682 6376 6199
Passcode: 69315768

Emergent phenomena of interacting spins and charges I: Textures in real space and reciprocal space

Syllabus

Lecture and seminar content:

1. Introduction; Preview of fundamental competing interactions; Overview contemporary research topics
   • Recitation: Refresher course: quantum mechanics (by instructor)
2. Exchange interactions in atoms and molecules
   • Seminar: The Ising model: Phase transitions and the role of dimensionality (rather mathematical)
3. Heisenberg and Hubbard exchange models
   • Seminar: RKKY exchange and synthetic antiferromagnets (mostly applied)
4. Ferromagnetic exchange in solids
   • Seminar: X-ray absorption in magnetic materials (mostly quantum mechanics)
5. Spin-orbit interactions and the emergence of domain walls
   • Seminar: Stoner-Wohlfarth model, magnetic hysteresis, and magnetic hard drives (mostly applied)
6. Stray field interactions and the emergence of stripe domains
   • Seminar: Ferromagnetic imaging techniques (applied)
7. Topological spin textures
   • Seminar: The stability of magnetic bubble domains (rather mathematical)
8. Band structure measurements of solids - Uncovering materials with photoelectron spectroscopy
   
   • Spin-resolution in photoelectron spectroscopy
9. Graphene as a unique two-dimensional solid - Dirac fermions and their amazing properties
   
   • Realization of the Klein paradox in graphene
10. Interaction of graphene - How stacking and twisting can change everything
    
    • Twisted bilayer graphene – the first superconductor from carbon
11. The quantum spin Hall effect – a new member in the family
    • Topological effects becoming a new metrological standard
12. Topological insulators - Spin textures in reciprocal space
    • Spin texture of the Rashba effect
13. Functionalization of topological insulators – magnetism and superconductivity
    • The quest for Majorana quasiparticles