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Walther-Meißner-Institut (WMI), Bayerische Akademie der Wissenschaften
Chair for Technical Physics (E23), Technische Universität München

Seminar on
Spin currents and Skyrmionics
SS 2020


BADW

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Time:

Thursday, 14:00 - 15:30 h
Time/Place subject to change due to
spread of coronavirus - read more...

 

The preliminary disucssion and assigment will
be held in form of a ZOOM meeting.
Please contact the organisers
(Huebl, Althammer and Weiler) directly to
obtain the link to the meeting)


Place:
Library Room 142
Walther-Meißner-Institute
Walther-Meißner-Str. 8
Research Campus Garching

Date Speaker Title
23.04.2020
and
30.04.2020
Dr. Matthias Althammer, Dr. Mathias Weiler, Dr. Stephan Geprägs, Dr. H. Huebl
Walther-Meißner-Institut (E23)
Bayerische Akademie der Wissenschaften (BAdW) and Technische Universität München (TUM)
Preliminary discussion and assignment of topics: Walther-Meissner-Institute, Room 143
07.05.2020
Tobias Hochreiter
TUM
Magnetostatic twists in room-temperature skyrmions explored by nitrogen-vacancy center spin texture reconstruction
Advisor: Matthias Althammer
14.05.2020
Titel, Name
Affiliation
Title of Talk
28.05.2020
Emir Karadza
WMI
tbd
18.06.2020
Tobias Wimmer
WMI
tbd
25.06.2020
Carolina Lüthi
WMI
Hybrid magnetization dynamics
02.07.2020
Titel, Name
Affiliation
Title of Talk
09.07.2020
Luis Flacke
WMI
tbd
23.07.20020
Luis Flacke
WMI
Multilayer systems
30.07.2020
Christian Mang
WMI, TUM
Spinstromexperimente mit vertikalen Heterostrukturen
06.08.2020
Andreas Haslberger
WMI, TUM
Spin-Hall Magnetwiderstand


This seminar deals with spin-related phenomena in solid state physics.

The focus of the seminar will be on
- Skyrmions
- Pure spin currents

All topics have substantial overlap with magnetism-related research activities at the WMI and the TUM physics department. Seminar talks can be given either in English or in German.

The seminar is particularly relevant for the special courses on "Magnetism" and "Spintronics". It is suitable for bachelor and master students in the 6. semester and higher.

Topics for seminar talks in SS 2020:

Skyrmionics

  1. Magnetostatic twists in room-temperature skyrmions explored by nitrogen-vacancy center spin texture reconstruction (Dovzhen et al., Nature Communications 9, 2712 (2018) https://doi.org/10.1038/s41467-018-05158-9 )
  2. Fast current-driven domain walls and small skyrmions in a compensated ferrimagnet (Caretta et al., Nature Nanotechnology (2018) https://doi.org/10.1038/s41565-018-0255-3 )
  3. Current-induced dynamics of skyrmion strings (T. Yokouchi, Science Advances 10, eaat1115 (2018), https://doi.org/10.1126/sciadv.aat1115)
  4. Transformation between meron and skyrmion topological spin textures in a chiral magnet (Yu et al., Nature 564, 95 (2018))
  5. Current-Induced Modulation of the Interfacial Dzyaloshinskii-Moriya Interaction (Kato et al., Phys. Rev. Lett. 122, 257205 (2019))

All-electrical magnon transport:

  1. Propagation Length of Antiferromagnetic Magnons Governed by Domain Configurations (Ross et al., Nano Lett 20, 306 (2020))
  2. Impact of electromagnetic fields and heat on spin transport signals in YIG (Y3Fe5O12) (Cramer et al., Phys. Rev. B 100 094439 (2019))
  3. Interface-driven chiral magnetism and current-driven domain walls in insulating magnetic garnets (Avci et al., Nature Nanotechnology 14, 561 (2019))
  4. Probing the Source of the Interfacial Dzyaloshinskii-Moriya Interaction Responsible for the Topological Hall Effect in Metal/Tm3Fe5O12 Systems (Lee et al., Phys. Rev. Lett. 124, 107201 (2020))
  5. Current-driven magnetic domain-wall logic (Luo et al. Nature 579, 214 (2020))

Complex magnon dynamics:

  1. Magnon-magnon interactions in a room-temperature magnonic Bose-Einstein condensate (Dzyapko et al., Physical Review B 96, 064438, (2017), https://doi.org/10.1103/PhysRevB.96.064438 )
  2. Bistability of Cavity Magnon Polaritons (Wang et al., Phys. Rev. Lett. 120, 057202 (2018))
  3. Microwave control of thermal-magnon spin transport (J. Liu, Phys. Rev. B 99, 054420 (2019), https://doi.org/10.1103/PhysRevB.99.054420)
  4. Chiral Spin-Wave Velocities Induced by All-Garnet Interfacial Dzyaloshinskii-Moriya Interaction in Ultrathin Yttrium Iron Garnet Films (Wang et al., Physical Review Letters 124, 027203 (2020))

 

Contact: Matthias Althammer (Tel.: 089 289 14311, matthias.althammer@wmi.badw.de), Hans Huebl (Tel.: 089 289 1420, hans.huebl@wmi.badw.de), Mathias Weiler (Tel.: 089 289 14226, mathias.weiler@wmi.badw.de)




For general information on the teaching program of TUM see TUMonline.