Yesterday, after three months of planning and construction, Jairo Sinova and Mathias Kläui opened the new Communication Zone. The shared communication space will be open for all members of the INSPIRE-Group, SPICE, the Kläui-Lab and their guests. The ComZone allows both groups to meet, discuss and work together on projects in a nice and modern working environment.
At the inauguration both group leaders were looking forward to even more interchange between the groups: "Whether you're just having a discussion over a cup of coffee, or a large scientific meeting, the new ComZone will be the perfect place for you. We like to thank the institute of physics for making this possible, as well as everybody who was involved in this project."
On July 4th and 5th the INSPIRE group had an internal group workshop in the picturesque village of Sörgenloch close to Mainz. In the nice atmosphere of Schloss Sörgenloch the INSPIRE group focused on team building processes and internal working strategies. The group also used the occasion to welcome Ulrike Ritzmann, as well as Bertrand Dupé and Marie Böttcher, who will join the group in October 2016. After a very successful first day, the group enjoyed the food and a variety of local wines served on the Schloss Sörgenloch terrace in the evening. On the second day of the workshop the group worked on presentation techniques and communication skills under the guidance of two coaches from an improvisational theater. We thank the participants for two beautiful and very successful days in Sörgenloch.
With the impending end of traditional Si based electronics due to Moore's law limitations, the need for novel approaches to next generation device design is not only apparent, but has become a popular interdisciplinary research topic. From research in fabrication engineering and device architectural design to devices based on intrinsically different physics, there is ample room for research from physics, chemistry, and engineering perspectives. From June 13th to 17th, the SPICE Young Research Leaders Workshop was held to approach the problem from a primarily materials perspective aiming to use external stimuli such as classical gating, ionic liquid gating, optical excitation, magnetic field control, strain, etc. to cause large physical property changes in Dirac and Weyl materials due to their unique, sensitive and modifyable Fermi surfaces. Together with co-organizer Jairo Sinova, the organizers Mazhar Ali and Binghai Yan brought together 22 young experts in theoretical and experimental physics, solid state chemistry, and electrical engineering in a multi-disciplinary collaborative effort to quickly bring the exciting new physics of Dirac and Weyl materials to practical application. Through the foundations laid in this workshop, we hope to spark a new field of electronics, discover new materials, new properties, new physics, and possibly create devices based on changing between fundamental states of matter.
This week, SPICE hosted a Workshop boosting the new field of Quantum Acoustics‐ a phonon analogue of quantum optics on chip – where single phonons in the form of high‐frequency surface acoustic waves (SAWs) propagate in acoustic waveguides coupling remote qubits. The team of organisers consisted of Göran Johansson (Chalmers, Sweden), Christopher Bäuerle (CNRS, France), Paulo Santos (PDI, Germany) and Floris Zwanenburg (Twente, Netherlands). They brought together three scientific communities which have not interacted substantially before, i.e. Surface Acoustic Waves, Solid State Spin Qubits and Superconducting Qubits. In the beautiful location of Schloss Waldthausen, fifty-two international scientists used talks, discussions and a poster session to explore contact points and potential synergies for these three fields. We thank the organizers and all participants for a successful workshop.
On March 6th, the first day of this year's DPG spring meeting in Regensburg, Christian Back from the University of Regensburg, Stefania Pizzini from the Institut Néel, CNRS and Yuriy Mokrousov from Forschungszentrum Jülich, gave an introductory session on "Spin Hall Effect and Spin-Orbit Torques." In their respective talks, Christian Back introduced the basic concepts of spin currents and spin Hall effect, Stefania Pizzini gave an experimental introduction to spin-orbit torques and Yuriy Mokrousov explained the basics of berry phase physics and spin Hall conductivity on the example of the curvature of a potato chip. Read the full German article.
The organising team, Karin Everschor-Sitte and Matthias Sitte thank all speakers and participants for a very successful session.
This year, the Universidad del Norte in Barranquilla celebrated its 50th anniversary. As part of the festivities, the 19th Catédra Europa took place from March 14th - 18th. The large scale event provides a platform for scientific and cultural encounters between Colombian and European Academia. Jairo Sinova was invited to introduce his visions for new interdisciplinary approaches to scientific work, which he likes to compare to a scientific tango. Accordingly, his lecture was entitled "El tango de la fisica".
The INSPIRE group took part in the open doors day of Johannes Gutenberg Universität Mainz by inviting secondary school students to dip a toe in the water of theoretical Spintronics. Karin Everschor and Jacob Gayles gave our guests a presentation entitled "The future technology of Spintronics – the diverse quantum world of condensed matter" introducing spintronics as a scientific discipline and giving the students a lively insight into the life and work of researchers in this field. After the theoretical part, Andreas Kehlberger from the Kläui Lab took the potential junior researchers on a tour of the laboratories of the experimentalists. We were very happy about the interest shown by the students and are looking forward to host the next collaborative open doors day of the Kläui Lab and INSPIRE/SPICE.
On December 14th, the SPICE team and INSPIRE group had their Christmas party at the cosy tavern "Beichtstuhl" in the Mainz old town. In a cheerful atmosphere, the group members and their plus ones enjoyed the traditional food and wine of the region, looking back at an eventful year 2015 for both the INSPIRE group and the SPICE Center.
On the December 03rd and 4th, the SPICE team and Inspire group had an internal group seminar in the picturesque city of Bamberg in Franconia. Under the title “New Directions in the Spin Phenomena," the participants explored innovative approaches to interdisciplinary in Spintronics Research. After a nice train journey through the Bavarian landscape, SPICE-Director Jairo Sinova opened the seminar in the beautiful Barock Hotel close to the Bamberg cathedral. In the afternoon, the group had a guided tour through the old part of town followed by a visit of the famous Bamberg Christmas Market. After some Glühwein the group enjoyed traditional Bavarian food in the nice atmosphere of a quaint old town restaurant. Friday started with two workshops – one for the administrative staff led by SPICE project manager Valerie Rung and one for the scientific staff managed by our visiting postdoc Kei Yamamoto. We thank the participants for two beautiful and successful days in Bamberg.
On October 23rd and 24th, SPICE hosted the 29th REIMEI and ERATO-SQR workshop. The organisers Junichi Ieda and Jairo Sinova brought together leading theorists and experimentalists to work on effects of the spin-orbit interaction and the coupling of the spin and lattice degrees of freedom in magnetic nanostructures.
Being an efficient spin current detector and generating so-called spin-orbit torques on proximity magnets, the spin Hall effect has moved into the mainstream of magnetism. The electrical and thermal actuation of the magnetization of insulators with extremely high quality factors of the magnetization dynamics has focused attention on the bosonic degrees of freedom in spintronics and the importance of the spin-lattice and spin-rotation couplings.
The scope of the workshop covered the topics:
The magnon-phonon interaction in a magnetic insulator (YIG) to better understand acoustically induced spin pumping and the spin Seebeck effect.
Materials with large spin-orbit interaction examined by combining density functional theory in the local density approximation with the quantum Monte Carlo technique.
The effects of spin-orbit interaction on the magnetization dynamics of ferro-, feri-, and antiferro-magnets and their heterostructures.