Altermagnetism: Emerging Opportunities in a New Magnetic Phase
Workshop, May 9th - 11th 2023
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This workshop focuses on the emerging magnetic material class of altermagnets. This recently discovered magnetic phase is separate from the ferromagnetic and antiferromagnetic phases that we are used to. The new altermagnetic class shows compensated magnetic ordering and alternating spin-polarization in both the direct and momentum space, with a d-wave (or higher even-parity wave) symmetry. Altermagnets span a large range of materials from insulators to superconductors, and exhibit properties characteristic of ferromagnetism, antiferromagnetism, and other unique properties that neither of the two previously known classes have.
The novel properties of altermagnets have links to many fields of research, such as spintronics, ultra-fast photo-magnetism, neuromorphics, multiferroics, magnonics, topological matter, or superconductivity. The workshop brings together junior and senior scientists from diverse research fields to explore this fascinating newly discovered magnetic phase.
This workshop is organized by SPICE as part of the Gutenberg International Conference Center (GICC) at Johannes Gutenberg University Mainz (JGU). The GICC is funded through the German Research Foundation’s (DFG) university allowance in the Excellence Strategy program and aims at fostering JGU as a national and international research hub. By organizing regular conferences and workshops in fields of excellent JGU research, the GICC provides a platform to build interest networks and collaborations – to promote exchange and dialog among academics and research groups from all over the world.
Organizers
Helen Gomonay, JGU
Tomas Jungwirth, Czech Academy of Sciences
Aleksei V. Kimel, Radboud Univ.
Jairo Sinova, JGU
Libor Šmejkal, JGU
Invited Speakers
Sayantika Bhowal, ETH Zurich
Stefan Blügel, Julich Zentrum
Arnab Bose, JGU/Cornell Univ.
Davide Bossini, Univ. of Konstanz
Sang-Wook Cheong, The Rutgers Univ.
Hans-Joachim Elmers, JGU
Edgar Felipe Galindez Ruales, JGU
Nirmal Ghimire, George Mason Univ.
Sebastian Goennenwein, Univ. of Konstanz
Shutaro Karube, Kyoto Univ.
Aleksei V. Kimel, Radboud Univ.
Dominik Kriegner, Czech Academy of Sciences |
Qihang Liu, SUSTech
Andrew P. Mackenzie, MPI Dresden
Igor Mazin, George Mason Univ.
Paul McClarty, MPI Dresden
Johan Mentink, Radboud Univ.
Yuriy Mokrousov, Julich Zentrum
Helena Reichlova, Czech Academy of Sciences
Libor Šmejkal, JGU
Cheng Song, Tsinghua
Peter Wadley, Univ. of Nottingham |
Terahertz Spintronics: toward Terahertz Spin-based Devices
Workshop, October 10th - 12th 2023
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THz spintronics is a novel research field that combines magnetism and spintronic with ultrafast optics. Although ultrafast demagnetization of ferromagnetic materials at picosecond timescale has been first observed already three decades ago, recent years have seen the rapid development of THz spintronic devices stemming from ground breaking studies. Many studies pushed the GHz limits of standard spintronic devices to the THz range by investigating new materials and spin-orbit interactions at ultrafast time scale. Especially, the development of broadband and high power spintronic THz emitters based on simple nanometer thin ferromagnetic / heavy metal bilayers holds the prospect to extend the THz field and widen its applications that has long while been limited to niches for astronomers and spectroscopists.
In the last years, the numerous improvements made in material research (such as on topological insulators and antiferromagnetic materials), interface quality and device engineering have been central to both explore spin-based physics at THz frequencies and investigate to new concepts of spin based THz devices. These cover the full THz block chain (broad and narrowband THz generation and detection, together with control of radiation properties such as polarization and ellipticity) as well as new approaches for THz imaging and encoding THz information. The widespread interest and progress in spin-based THz physics and devices continues to accelerate requiring joint efforts from magnetism, optics and engineering research communities. This workshop will bring together world-leading scientists from these broad range of communities, generating further collaborations and developmentsin this emerging field.
This workshop is organized by SPICE as part of the Gutenberg International Conference Center (GICC) at Johannes Gutenberg University Mainz (JGU). The GICC is funded through the German Research Foundation’s (DFG) university allowance in the Excellence Strategy program and aims at fostering JGU as a national and international research hub. By organizing regular conferences and workshops in fields of excellent JGU research, the GICC provides a platform to build interest networks and collaborations – to promote exchange and dialog among academics and research groups from all over the world.
Organizers
Sukhdeep Dhillon, Ecole Normale Supérieure
Tobias Kampfrath, FU and FHI Berlin
Romain Lebrun, Unité mixte de Physique CNRS/Thales
Invited Speakers
Theodoros Adamantopoulos, FZJ
Joe Barker, Leeds University
Marco Battiato, NTU Singapore
Yannic Behovits, FU Berlin
Stefano Bonetti, Venice University
Elbert Chia, Nanyang Technological University
Shunsuke Fukami, Tohoku University
Jon Gorchon, Lorraine University
Darren Graham, University of Manchester
Henri Jaffres, CNRS/Thales
Benjamin Jungfleisch, University Delaware
Tomas Jungwirth, Czech Academy of Sciences
Alexei Kimel, Radboud University |
Melanie Müller, FHI
Markus Münzenberg, Greifswald University
Peter Oppeneer, Uppsala University
Evangelos Th. Papaioannou, Martin-Luther University/ Aristotle University
Felix Paries, Fraunhofer Institute for Industrial Mathematics ITWM
Enzo Rongione, ICN2
Tom Seifert, FU Berlin
Ranjan Singh, Nanyang Technological University
Dmitry Turchinovich, Bielefeld University
Mathias Vanwolleghem, Lille University
Xiaojun Wu, Beihang University |
Non-equilibrium Quantum Materials Design
Workshop, June 27th - 29th 2023
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Quantum materials driven out of equilibrium by strong electric fields exhibit phenomena that challenge our physical understanding of solids and could be implemented in future device technologies. Examples include photo- and current-induced transitions to metastable hidden phases, the ultrafast optical manipulation of ferroelectricity and magnetism, light-induced superconductivity, and the creation of photon-dressed topological states. While much progress has been made in characterizing these effects, turning them into real-world functionalities requires stabilizing them at high temperature, on long time scales, and with minimal input power. These challenges are inherently of a materials nature. The focus of this workshop is to bring together experts in quantum materials synthesis (single crystals, thin films, vdW heterostructures) with experimentalists and theorists investigating non-equilibrium phenomena to spark a new generation of non-equilibrium quantum materials design – that is, to create quantum materials that are specifically designed for their out-of-equilibrium response to optical and electrical perturbations. The long-term goal is to create a feedback loop between materials synthesis, experimental characterization and theory for non-equilibrium physics, similar to the successful strategies employed in equilibrium quantum materials design.
This workshop is organized by SPICE as part of the Gutenberg International Conference Center (GICC) at Johannes Gutenberg University Mainz (JGU). The GICC is funded through the German Research Foundation’s (DFG) university allowance in the Excellence Strategy program and aims at fostering JGU as a national and international research hub. By organizing regular conferences and workshops in fields of excellent JGU research, the GICC provides a platform to build interest networks and collaborations – to promote exchange and dialog among academics and research groups from all over the world.
Ankit Disa, Cornell University
James McIver, Columbia University/MPSD Hamburg
Invited Speakers
Richard Averitt, UC San Diego
Nicole A. Benedek, Cornell University
Alexey Berdyugin, NUS
Andrea Caviglia, University of Geneva
Jiun-Haw Chu, University of Washington
Martin Claassen, University of Pennsylvania
Martin Eckstein, FAU
Daniele Fausti, FAU
Claudia Felser, MPI CPfS
Wanzheng Hu, Boston University
Harold Y. Hwang, Stanford |
Atac Imamoglu, ETH Zurich
Dieter Jaksch, University of Oxford
Gil-Ho Lee, POSTECH
Marios Michael, MPSD Hamburg
Andrew J. Millis, Columbia University
Carsten Putzke, MPSD Hamburg
Angel Rubio, MPSD Hamburg
Justin Song, Nanyang Technological University
Susanne Stemmer, UC Santa Barbara
Igor Vaskivskyi, Jozef Stefan Institute
Suyang Xu, Harvard
Liuyan Zhao, University of Michigan |
