News

23.10.2018 – Ultrafast Spintronics

Ultrafast Spintronics: from Fundamentals to Technology

The 21st century digital economy and technology is presently facing fundamental scaling limits (heating and the superparamagnetic limit) as well as societal challenges: the move to mobile devices and the increasing demand of cloud storage leads to an enormous increase in energy consumption of our ICT infrastructure. These developments require new strategies and paradigm shifts, such as spin-based technologies and the introduction of photonic processors. Currently, photons are used for information transport, electrons for processing and spins for storage. Future developments will require integration of these separate technologies. Spintronic or spin-based memory such as Spin-torque transfer magnetic Random Access Memory (STT-RAM) is one concept that may revolutionize memory technology. The ability to control spins and macroscopic magnetic ordering by means of femtosecond laser pulses provides an alternative and energy efficient approach to magnetic recording. But this will only provide a novel and energy efficient alternative to current data storage if spintronics can be integrated with photonics. Such integration may also allow faster spin logic. Antiferromagnetic materials may provide another alternative for fast spintronics, but there are still many challenges. In this workshop we want to discuss recent developments in this exciting field as well as the challenges that lay ahead.

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08.10.2018 – Spintronics meets Neuromorphics

Spintronics meets Neuromorphics

An entire suite of novel Neuromorphic computational paradigms, taking inspiration from the functional properties of the brain, has emerged over the past two decades to address the need to efficiently process and analyze the exponential amount of data produced in our Information Age. Research on neural networks, reservoir computers and Boltzmann machines, has demonstrated that it is possible to perform complex computational tasks such as image and pattern recognition at a level comparable to that of a human. All proof-of-concepts have however relied mostly on digital implementations of their respective computational scheme. Whereas this has justified the importance of such techniques, their implementation into scalable and energy efficient analog electronic devices is still much of an open problem. The workshop “Spintronics meets Neuromorphics” aims to show how the challenges posed by neuromorphic computing paradigms can be addressed effectively with spintronics. The low-current tunability, thermal susceptibility and rich dynamics of magnetic thin-film heterostructures offer an ideal toolbox for implementing novel neuromorphic devices. Furthermore, progress in their material science guarantees that promising proof-of-concepts will have a high chance of proving scalable enough to afford industrial production.

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03.09.2018 – Joint European Magnetic Symposia

Joint European Magnetic Symposia 2018

JEMS covers a wide breadth of cutting-edge topics in magnetism and magnetic materials research, ranging from the fundamental to the applied. The topics cut across the entire field of magnetism, such as biomangetism applications, chiral magnetism and skyrmions, multiferroics, strongly correlated systems, topological magnetic materials, ultrafast optical spintronics, and magnonics.

The conference incorporates plenary and semi-plenary talks from internationally renowned speakers, representing the latest advances in magnetism. Attendees are also able to contribute to specific symposia through talks and poster sessions focused on their research topics.

Mainz and the Rheinpfalz region are important centers of magnetism research in Germany. The Kaiserslautern-Mainz collaborative center SPIN+X and the Spin Phenomena Interdisciplinary Center (SPICE) lead many of these efforts.

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10.07.2018 – Young Research Leaders Group Workshop

YRLG: Collective phenomena in driven quantum systems

The workshop explored situations in which non-equilibrium setups can provide information about many-body systems that cannot be accessed in conventional (linear-response based) probes. Systems of particular interest are materials with strongly competing or frustrated (by disorder, relativistic corrections or geometrical constrains) interactions, or those under extreme quantum conditions (traditionally, very low temperatures and/or very high magnetic fields). These circumstances favor the formation of phases characterized by some sort of topological order, revealing highly entangled ground states and exotic, but experimentally elusive, excitations. Topology provides also the unifying framework to describe the emergence of quantum coherence at the macroscopic scale. These current efforts in solid state goes hand by hand with the design and large-scale control of new types of synthetic quantum matter in driven optical and atomic systems.

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15.05.2018 – Spin Cavitronics

Spin Cavitronics

Cavity (quantum) electrodynamics, originally invented in order to enhance matter-light interaction in atomic physics, has developed into an ubiquitous technique to study condensed matter systems, such as semiconductor quantum dots, diamond NV centers, donor spins in silicon, Josephson-junction qubits, nanomechanical systems, etc. Recently, ferromagnets in cavities have been shown to hybridize with microwaves and (more weakly) with light photons. We observe now the emergence of the interdisciplinary field “Spin Cavitronics” that brings together the optical and microwave cavity communities with researchers from magnetism and spintronics, also involving superconductivity, plasmonics, phononics, mechanics, and AMO groups. The present workshop is intended to facilitate interaction between the leaders of these fields and lure prospective newbies.

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08.05.2018 – Quantum Thermodynamics and Transport

Quantum Thermodynamics and Transport

The purpose of this conference was to bring together researchers from the communities of condensed matter, statistical physics, quantum optics and atomic physics with the aim of discussing quantum effects on transport and thermodynamics. The following topics were covered: quantum heat and work, time-dependent drivings, thermoelectrics, quantum fluctuations, coherence and entanglement. The meeting contributed to the understanding of fundamental properties of quantum matter out of equilibrium as well as to the development of novel nanodevices.

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20.12.2017 – Job offer: PhD Position in Spintronics in the Institute of Physics at the Johannes Gutenberg-Universität Mainz

 

PhD Position in Spintronics

Johannes Gutenberg-Universität Mainz, Germany

 

We are pleased to announce the opening of two PhD positions in theoretical condensed matter in the Institute of Physics at the Johannes Gutenberg-Universität Mainz to work with the spintronics theory groups INSPIRE (Jairo Sinova) and TWIST (Karin Everschor- Sitte) on topics such as antiferromagnetic spintronics, skyrmions, and topological matter. The physics institute and the Spin Phenomena Interdisciplinary Center (SPICE) provides a stimulating environment due to an active workshop program and a broad range of research activities.

The prospective group member must hold a MSc or equivalent diploma. A background in theoretical techniques in condensed matter physics is required. Candidates interested and/or experienced in spintronics, magnetization dynamics, the physics of antiferromagnetics or skyrmions, and micromagnetic modelling are highly suited for this opportunity. Programming experience is desired.

Further information can be found on the websites: https://www.inspire.uni-mainz.de or http://www.twist.uni-mainz.de/

Johannes Gutenberg-Universität Mainz is an equal opportunity, affirmative actions employer in compliance with German disability laws. Women and persons with disabilities are encouraged to apply.

Review of applications begins immediately and will continue until the position is filled. Interested applicants should send a curriculum vitae, a list of publications, and at least two letters of recommendation to sinova-group@uni-mainz.de. When sending applications please use the subject line “Spintronics PhD position application”.

 


 

Prof. Jairo Sinova
Head of the group INSPIRE
Director of SPICE

Dr. Karin Everschor-Sitte
Head of Emmy Noether Research Group TWIST
Scientific Coordinator of SPICE

Johannes Gutenberg-Universität Mainz FB 08 – Institut für Physik Staudingerweg 7
55128 Mainz
Germany

25.09.2017 – Exotic New States in Superconducting Devices

Exotic New States in Superconducting Devices: The Age of the Interface

Superconducting material such as a ferromagnet, a topological insulator or a semiconductor, a range of electronic states can be induced which are radically different from either constituent material. To be able to probe these states requires a broad range of expertise, spanning basic materials science to fundamental physics modeling of interfaces and transport behaviour. At this meeting we have the opportunity to bring together scientists working on distinct and overlapping areas, such as superconductivity, magnetism, topological materials, quantum computing, and spin-electronics. This science community will have an opportunity to appreciate how these different transport phenomena are linked conceptually and thereby stimulate further understanding particularly with respect to realising useful devices with unique properties for spin-electronics and quantum computing.

25.10.2017 – Antiferromagnetic Spintronics

Antiferromagnetic Spintronics

Antiferromagnetic materials could represent the future of spintronics thanks to the numerous features they combine: they are robust against perturbation due to magnetic fields, produce no stray fields, display ultrafast dynamics and generate large magnetotransport effects. Research efforts invested in unraveling spin-dependent transport properties of antiferromagnets were presented and discussed in this workshop.

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31.07.2017 – Young Research Leaders Group Workshop

Insulator spintronics – strong-coupling, coherence and entanglement

Magnetic insulators are extremely versatile materials. They’re used for fundamental research into magnetism and in real world devices. They have become a vital tool across many research disciplines to the extent that they are now micro-scale laboratories in their own right. The lack of charge currents in these materials allows for a very controlled environment where pure spin currents can flow and single magnons can be excited. However, nature is not so kind and the majority of magnetic insulators are a complex class of materials with many complications which must be understood.

This SPICE Young Research Leaders Workshop aims to bring together young scientific leaders who are interested in how magnetic insulators can be used to push the frontier of our understanding of basic science as well as technological frontiers such as spintronics and quantum computing. Specifically, this workshop will bring together researchers from the fields of insulator spintronics, magnon-polaritons and quantum magnetism to exchange ideas and discuss new ways in which magnetic insulators can be applied to fundamental research and applications.