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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

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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)

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

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