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DTSTART;TZID=Europe/Berlin:20251118T160000
DTEND;TZID=Europe/Berlin:20251118T170000
DTSTAMP:20260531T013750
CREATED:20251114T110811Z
LAST-MODIFIED:20251114T112843Z
UID:6157-1763481600-1763485200@www.trr360.de
SUMMARY:TRR 360 Sonderseminar: Computational design of quantum materials using density functional theory and beyond Manish Verma
DESCRIPTION:Computational design of quantum materials using density functional theory and beyond \n\n\n\n \n\n\n\nDr. Manish Verma \n\n\n\n \n\n\n\n\n\n\n\nInstitute for Theoretical Physics and AstrophysicsComputational Quantum MaterialsJulius-Maximilians-Universität Würzburg \n\n\n\n\n\n\n\n \n\n\n\nComputational design of quantum materials using density functional theory (DFT) and many-body techniques-both perturbative and non-perturbative\, has become a powerful tool for exploring key physical phenomena such as strong correlations\, metal-to-insulator transitions (MIT)\, magnetism\, and thermoelectricity etc. In this direction\, designing novel electronic properties in artificial transition metal oxide (TMO) heterostructures\, distinct from their bulk counterparts\, has emerged as a new paradigm enabled by modern layer-by-layer growth techniques and the unique nature of d-electrons. I will start my talk by discussing the mechanisms driving the MIT and magnetism in ultrashort-period superlattices (SL)\, namely (SrVO3)1/(SrTiO3)1(001) [1\, 2] and (LaNiO3)1/(LaAlO3)1(001) [3]\, where confinement and epitaxial strain play fundamental roles. Subsequently\, I will present the MIT in Ca-doped LaMnO3\, which arises from the interplay between strain and chemical doping [4]. TMO-based SL are also known to exhibit high thermoelectric response\, in addition to their environmental friendliness and stability. In this context\, I will discuss the doping-induced robust p-type thermoelectric response in ultrashort-period (SrMnO3)1/(SrTiO3)1(001) SL\, obtained by employing Boltzmann transport theory within constant-relaxation time approach. Next\, I will then present my results on strategies for reducing lattice thermal conductivity in artificial oxide superlattices\, obtained using many-body perturbation theory calculations of phonon-phonon interactions. Transition-metal oxides are further known to display strong correlation effects due to their d-electrons. In this regard\, LiV2O4 stands out as an enigmatic heavy fermion compound lacking localized f-orbital states. I will present DFT combined with dynamical mean-field theory (DFT+DMFT) results that elucidate the origin of heavy-fermion behavior\, supported by angle-resolved photoemission spectroscopy (ARPES) measurements [5]. \n\n\n\n\n\n\n\n[1] M. Verma\, B. Geisler\, and R. Pentcheva\, Phys. Rev. B 100\, 165126 (2019).[2] M. Verma and R. Pentcheva\, Phys. Rev. Research 4\, 033013 (2022).[3] M. Verma and R. Pentcheva\, Phys. Rev. Research 6 (1)\, 013189 (2024).[4] S. S. Hong et al.\, Science 368\, 71 (2020).[5] D. Oh et al.\, Proceedings of the National Academy of Sciences 122 (45)\, e2518213122 (2025). \n\n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-sonderseminar-computational-design-of-quantum-materials-using-density-functional-theory-and-beyond-manish-verma/
LOCATION:University of Augsburg\, Room S-288
CATEGORIES:Sonderseminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20251119T140000
DTEND;TZID=Europe/Berlin:20251119T150000
DTSTAMP:20260531T013750
CREATED:20251013T101037Z
LAST-MODIFIED:20251119T112925Z
UID:5985-1763560800-1763564400@www.trr360.de
SUMMARY:TRR 360 Seminar:A New Perspective on Correlated Metals: from Concealed Mott Quantum Criticality to Disorder in Heavy Fermi Liquids Louk Rademaker
DESCRIPTION:A New Perspective on Correlated Metals: from Concealed Mott Quantum Criticality to Disorder in Heavy Fermi Liquids\n \nProf. Dr. Louk Rademaker \nUniversité de Genève\, Switzerland \n\n\n\n\n\n\nThe band-structure picture of metals is very successful in many materials where the electron correlations are weak. On the other extreme\, when correlations are very strong\, one expects interaction-induced insulators – due to Mott localization or symmetry breaking. However\, the intermediate regime where correlations are strong but the material remains gapless\, harbors many open questions in our understanding of quantum materials. \n\n\n\nIn this talk\, I will give an overview of three aspects of correlated metals. I will discuss the relation between quantum criticality at the Kondo breakdown and in doped charge-transfer insulators like the cuprates. These metal-to-metal transitions can be viewed as exhibiting concealed Mott criticality. \n\n\n\nNear a Mott critical point\, large effective mass enhancements are observed. The famous Landau relation between mass enhancement and specific heat requires a new sum rule for the temperature-dependence of the electron self-energy. \n\n\n\nIn such heavy Fermi liquids\, the interplay between correlations and disorder cannot be ignored. Inspired by new experiments on organic compounds\, we show that contrary to textbooks\, the residual resistivity is affected by the mass enhancement. \n\n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-seminartba-louk-rademaker/
LOCATION:Technical University Munich + Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20251126T140000
DTEND;TZID=Europe/Berlin:20251126T150000
DTSTAMP:20260531T013750
CREATED:20251013T101348Z
LAST-MODIFIED:20251125T131546Z
UID:5988-1764165600-1764169200@www.trr360.de
SUMMARY:TRR 360 Seminar:Experimental prospects on measurement-altered criticality Sara Murciano
DESCRIPTION:Experimental prospects on measurement-altered criticality \nProf. Dr. Sara Murciano \nUniversité Paris Saclay\, France \n\n\n\n\n\n\nQuantum critical systems constitute appealing platforms for the exploration of novel measurement-induced phenomena due to their innate sensitivity to perturbations. I will devise a practical scheme for realizing measurement-altered criticality in a chain of Rydberg atoms tuned to Ising and tricritical Ising phase transitions. Projectively measuring a periodic subset of atoms alters quantum critical correlations in distinct ways that one can control via the choice of measured sites and the measurement outcomes. While this protocol relies on post-selection\, the measurement outcomes yielding the most dramatic consequences occur with surprisingly large probabilities. \n\n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-seminartba-sara-murciano/
LOCATION:Technical University Munich + Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20251217T160000
DTEND;TZID=Europe/Berlin:20251217T170000
DTSTAMP:20260531T013750
CREATED:20251213T231328Z
LAST-MODIFIED:20251213T231604Z
UID:6231-1765987200-1765990800@www.trr360.de
SUMMARY:TRR 360 Seminar:Multiferroic conversionTsuyoshi Kimura
DESCRIPTION:Multiferroic conversion\n \nProf. Dr. Tsuyoshi Kimura \nDepartment of Applied Physics\, University of Tokyo\, Japan \n\n\n\n\n\n\nSymmetry breaking ascribed to the evolution of an order parameter is one of the most important concepts in materials physics. Representative examples are symmetry breakings in ferroic materials\, such as the symmetry breaking of time reversal in ferro-magnets and that of space inversion in ferroelectrics. Recent research developments of multiferroic materials have triggered extensive studies on unconventional ferroic materials such as ferro-toroidic\, ferro-axial\, and ferro-chiral materials. \n\n\n\nIn this presentation\, we propose the concept of “multiferroic conversion”\, which refers to the transformations of ferroic states by combining different ferroic orders. Such conversion occurs\, for example\, by a deformation of a structural unit in a ferroic material [1] and by the application of external stimuli such as an electric field to a ferroic material [2-5]. We demonstrate several types of multiferroic conversion by observing unconventional optical phenomena\, including electric-field-included Faraday effect (from ferro-magnetic-monopolar to ferro-magnetic state) [2]\, electrogyration (ferro-axial to ferro-chiral) [3]\, magneto-chiral dichroism (ferro-axial to ferro-magnetic-toroidal) [4]\, and electric-field-induced nonreciprocal directional dichroism (altermagnetic to ferro-magnetic-toroidal) [5]. The concept of multiferroic conversion will lead to the unconventional functionalities of various ferroic materials. \n\n\n\n \n\n\n\n[1] T. Nagai et al.\, J. Am. Chem. Soc. 146\, 23348 (2024).[2] T. Hayashida et al.\, Phys. Rev. Research 4\, 043063 (2022).[3] T. Hayashida et al.\, Nat. Commun. 11\, 4582 (2020).[4] T. Hayashida et al.\, Proc. Natl. Acad. Sci. 120\, e2303251120 (2023).[5] T. Hayashida et al.\, Adv. Mater. 37\, 241876 (2025). \n\n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-seminarmultiferroic-conversiontsuyoshi-kimura/
LOCATION:University of Augsburg\, Room 242-R
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260428T160000
DTEND;TZID=Europe/Berlin:20260428T170000
DTSTAMP:20260531T013750
CREATED:20260323T110840Z
LAST-MODIFIED:20260422T115941Z
UID:6549-1777392000-1777395600@www.trr360.de
SUMMARY:TRR 360 Seminar:From solitons to correlations: Non-equilibrium spin dynamics across multiple scales Lukas Körber
DESCRIPTION:From solitons to correlations: Non-equilibrium spin dynamics across multiple scales\n \nDr. Lukas Körber \nUltrafast Spectroscopy of Correlated Materials\, Radboud University\, Nijmegen\, Netherlands \n\n\n\n\n\n\nAlthough magnetism fundamentally arises from complex quantum many-body interactions\, it is often possible to describe phenomena in ordered materials using classical emergent frameworks at various length and energy scales. This perspective facilitates the analysis of a wide range of static and dynamic nonlinear phenomena\, including topological solitons\, spin textures\, parametric resonance\, ultrafast switching\, auto-oscillations\, and chaos. Typically\, each emergent level is achieved by coarse-graining microscopic details\, which provides predictive power and introduces new conceptual tools\, such as torques\, conserved topological charges\, and solitons. However\, when magnetic systems are driven far from equilibrium\, this established hierarchy of emergent descriptions can break down\, resulting in fundamentally new multiscale effects that challenge existing conceptual frameworks. \n\n\n\n \n\n\n\nIn this talk\, I will present three complementary mechanisms that exemplify this breakdown from distinct perspectives. First\, driving a topological soliton with high-frequency microwave radiation can push the magnetic system into a far-from-equilibrium state where slow soliton dynamics and fast magnon dynamics become strongly coupled\, resulting in self-induced Floquet modes [1]. Second\, strong laser excitation of chiral magnets can induce significant thermal fluctuations\, resulting in the ultrafast nucleation of solitons known as skyrmions. While the skyrmion number is typically considered conserved at the emergent level\, in the ultrafast regime\, their collective dynamics can be described by independent thermally activated nucleation and annihilation events [2]. Lastly\, at even shorter spatiotemporal scales\, perturbing antiferromagnets can drive them into strongly excited states where classical nonlinear magnetism fails\, and quantum correlations become significant. Although numerical quantum many-body techniques can capture certain nonlinear spin dynamics\, these methods are computationally intensive and often obscure the connection between nonlinear dynamics and their geometric origin in the angular-momentum algebra of spins. To address this challenge\, we propose a semiclassical spin-correlation theory that evolves spin correlations on lattice bonds rather than on individual spins [3]. This approach incorporates nonlinear dynamics beyond classical models while preserving the geometric structure associated with the intrinsic nonlinearity of spins.[1] Heins\, Körber et al.\, Science 391\, 6781pp. 190-194 (2026)\, DOI: 10.1126/science.adq9891[2] Lieferink\, Körber et al.\, PRL 136\, 146705 (2026)\, DOI: 10.1103/brnt-2m9l[3] Körber et al. (2025)\, arXiv:2512.11466 \n\n\n\n \n\n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-seminartbdlukas-korber/
LOCATION:University of Augsburg\, Room S-288 + Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260511T140000
DTEND;TZID=Europe/Berlin:20260511T150000
DTSTAMP:20260531T013750
CREATED:20260505T133032Z
LAST-MODIFIED:20260505T133244Z
UID:6702-1778508000-1778511600@www.trr360.de
SUMMARY:TRR 360 Sonderseminar: Texture-dependent all-optical magnetization switching in thin ferromagnetic films Dinar Khusyainov
DESCRIPTION:Texture-dependent all-optical magnetization switching in thin ferromagnetic films \n\n\n\n \n\n\n\nDinar Khusyainov \n\n\n\n \n\n\n\n\n\n\n\nRadboud University Nijmegen\, Netherland \n\n\n\n\n\n\n\n \n\n\n\nUnderstanding spin dynamics at ever shorter time and length scales is one of the major challenges in fundamental and applied magnetism. This pursuit has led\, in particular\, to the discoveries of Giant Magnetoresistance (GMR) and all-optical switching (AOS) of magnetization\, while also motivating the development of large-scale facilities such as X-ray free-electron lasers.In this talk\, I will present a conceptually novel approach for exploring all-optical switching at the nanoscale by combining tabletop Magnetic Force Microscopy (MFM) with picosecond laser excitation. The potential of this approach is demonstrated through its application to helicity-dependent all-optical switching (HD-AOS) in ferromagnetic Pt/Co/Pt films [1]. I will show how the nanotexture of laser-induced domains modifies the energy landscape\, thereby enhancing the interaction between circularly polarized light and spins. As an outlook\, I will present recent results from Lorentz transmission electron microscopy studies of laser-induced domains in thin ferromagnetic films\, highlighting their topology. \n\n\n\n[1] D. Khusyainov et al.\, Nat. Mater. (2026). \n\n\n\n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-sonderseminar-texture-dependent-all-optical-magnetization-switching-in-thin-ferromagnetic-films-dinar-khusyainov/
LOCATION:University of Augsburg\, Room 242-R
CATEGORIES:Sonderseminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260520T141500
DTEND;TZID=Europe/Berlin:20260520T151500
DTSTAMP:20260531T013750
CREATED:20260517T180517Z
LAST-MODIFIED:20260517T180519Z
UID:6732-1779286500-1779290100@www.trr360.de
SUMMARY:TRR 360 Seminar:Topology in multi-level systems and braiding of band singularities F. Nur Ünal
DESCRIPTION:Topology in multi-level systems and braiding of band singularities \nDr. F. Nur Ünal \nTCM Group\, Cavendish Laboratory\, University of Cambridge\, United Kingdom \n\n\n\n\n\n\nRecent years have witnessed the discovery of novel multi-gap topologies that go beyond all previously-known classifications\, arising from intricate non-Abelian braiding procedures. I will talk about non-Abelian charges that can be associated with band singularities in certain multi-level systems and discuss their braiding procedures. I will introduce new non-Abelian topological phases\, some of which come with no static counterparts\, highlighting new topological invariants required to characterise these phases. The underlying non-Abelian charges can be however quite elusive\, and consequently direct measurement of these charges and topological invariants has been challenging. To this end\, I will identify observable signatures within reach of state-of-the-art experiments and present concrete protocols with first experimental verifications. Finally\, I will go beyond these non-Abelian topological considerations and introduce visually powerful geometric descriptions that arise for multi-level systems (qudits) with more general applications. \n\n\n\narXiv:2511.03894 \n\n\n\narXiv:2603.04489 \n\n\n\nNat. Comm. 15\, 1144 (2024) \n\n\n\nPhys. Rev. Lett. 133\, 093404 (2024) \n\n\n\nPhys. Rev. Research 4\, 023120 (2022) \n\n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-seminartopology-in-multi-level-systems-and-braiding-of-band-singularities-f-nur-unal/
LOCATION:Technical University Munich + Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260610T141500
DTEND;TZID=Europe/Berlin:20260610T151500
DTSTAMP:20260531T013750
CREATED:20260517T181122Z
LAST-MODIFIED:20260517T181124Z
UID:6738-1781100900-1781104500@www.trr360.de
SUMMARY:TRR 360 Seminar:tba Frank Schindler
DESCRIPTION:tba \nDr. Frank Schindler \nImperial College London\, United Kingdom \n\n\n\n\n\n\n \n\n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-seminartba-frank-schindler/
LOCATION:Technical University Munich + Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260617T141500
DTEND;TZID=Europe/Berlin:20260617T151500
DTSTAMP:20260531T013750
CREATED:20260517T181410Z
LAST-MODIFIED:20260517T181543Z
UID:6743-1781705700-1781709300@www.trr360.de
SUMMARY:TRR 360 Seminar:tba Achim Rosch
DESCRIPTION:tba \nProf. Dr. Achim Rosch \nInstitute for Theoretical Physics\, University of Cologne \n\n\n\n\n\n\n \n\n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-seminartba-achim-rosch/
LOCATION:Technical University Munich + Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260624T141500
DTEND;TZID=Europe/Berlin:20260624T151500
DTSTAMP:20260531T013750
CREATED:20260517T181806Z
LAST-MODIFIED:20260517T181808Z
UID:6748-1782310500-1782314100@www.trr360.de
SUMMARY:TRR 360 Seminar:tba Ady Stern
DESCRIPTION:tba \nProf. Dr. Ady Stern \nCondensed Matter Physics\, Weizmann Institute\, Rehovot\, Israel \n\n\n\n\n\n\n \n\n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-seminartba-ady-stern/
LOCATION:Technical University Munich + Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260630T160000
DTEND;TZID=Europe/Berlin:20260630T170000
DTSTAMP:20260531T013750
CREATED:20260512T123927Z
LAST-MODIFIED:20260526T100336Z
UID:6721-1782835200-1782838800@www.trr360.de
SUMMARY:TRR 360 Seminar:Chiral phononics: A new approach to angular momentum in solidsDominik M. Juraschek
DESCRIPTION:Chiral phononics: A new approach to angular momentum in solids\n \nProf. Dr. Dominik M. Juraschek \nEindhoven University of Technology\, Netherlands \n\n\n\n\n\n\n \n\n\n\n \n\n\n\nChiral phononics is an emerging field that utilizes the angular momentum of circularly polarized lattice vibrations to manipulate the properties of materials. Intriguing discoveries of novel phenomena have included phononic analogues of spintronic and orbitronic effects\, as well as the generation of atomistic tesla-scale magnetic fields that promise unprecedented control of magnetic order. In this talk\, I will introduce general directions in the field and then present our recent predictions of novel physical mechanisms. Specifically\, I will present a theory for the phonon angular momentum Hall effect that induces a transverse angular-momentum current and accumulation\, resembling a phononic analogue of the spin and orbital Hall effects for electrons. I will further show how chiral-phonon scattering leads to a rotational analogue of the Umklapp process in solids\, demonstrating the conservation of crystal angular momentum. \n\n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-seminartbddominik-m-juraschek/
LOCATION:University of Augsburg\, Room S-288 + Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260708T141500
DTEND;TZID=Europe/Berlin:20260708T151500
DTSTAMP:20260531T013750
CREATED:20260517T182333Z
LAST-MODIFIED:20260517T182335Z
UID:6753-1783520100-1783523700@www.trr360.de
SUMMARY:TRR 360 Seminar:tba Tom Devereaux
DESCRIPTION:tba \nProf. Dr. Tom P. Devereaux \nStanford University\, Stanford\, USA \n\n\n\n\n\n\n \n\n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-seminartba-tom-devereaux/
LOCATION:Technical University Munich + Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260714T160000
DTEND;TZID=Europe/Berlin:20260714T170000
DTSTAMP:20260531T013750
CREATED:20260323T111434Z
LAST-MODIFIED:20260323T161034Z
UID:6553-1784044800-1784048400@www.trr360.de
SUMMARY:TRR 360 Seminar:tbdMathias Kläui
DESCRIPTION:tbd\n \nProf. Dr. Mathias Kläui \nInstitute of Physics\, University of Mainz \n\n\n\n\n\n\n \n\n\n\n \n\n\n\ntbd \n\n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-seminartbdmathias-klaui/
LOCATION:University of Augsburg\, Room S-288 + Zoom
CATEGORIES:Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260721T160000
DTEND;TZID=Europe/Berlin:20260721T170000
DTSTAMP:20260531T013750
CREATED:20260512T124315Z
LAST-MODIFIED:20260526T100714Z
UID:6726-1784649600-1784653200@www.trr360.de
SUMMARY:TRR 360 Seminar:Emergent phenomena in nanosculpted quantum material devicesMaximilian Birch
DESCRIPTION:Emergent phenomena in nanosculpted quantum material devices\n \nDr. Maximilian Birch \nRIKEN Center for Emergent Matter Science\, Japan \n\n\n\n\n\n\n \n\n\n\n \n\n\n\nFocused ion beam (FIB) techniques enable precisely tailored nanoscale devices to be fabricated directly from high-quality single crystals\, providing a powerful platform for exploring emergent transport phenomena and unconventional experimental geometries. In this talk\, I will discuss the development and application of FIB-based device fabrication approaches used to investigate a range of quantum materials and functionalities\, including skyrmion dynamics\, p-wave magnetism\, and time-reversal symmetry breaking antiferromagnets. I will then present our recent development of three-dimensional nanosculpted FIB devices\, focusing on helical structures fabricated from the high-mobility Weyl ferromagnet Co₃Sn₂S₂. By introducing inversion symmetry breaking on the length scale of the electron mean free path\, these structures exhibit large nonreciprocal transport effects\, resulting in a switchable zero-field diode response. More broadly\, these results demonstrate how nanoscale geometric design can be used to access emergent electronic functionality in quantum materials. \n\n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-seminartbdmaximilian-birch/
LOCATION:University of Augsburg\, Room S-288 + Zoom
CATEGORIES:Seminar
END:VEVENT
END:VCALENDAR