Projects

Running projects

Antiferromagnetic spintronics (ASPIN)

PI: Tomáš Jungwirth

Grant agency/scheme: European Commission FET Open RIA

From 2017-10-1 to 2021-09-30

Total funding: EUR 3 682 973,75

Project number: 766566

Project web page

Project EU link

Abstract:

The aim of the project is to open and explore a new research avenue, with emerging and future information technologies at its horizon, where antiferromagnets take the center stage. Antiferromagnets and ferromagnets represent two fundamental forms of magnetism with antiferromagnets being the more abundant of the two. However, it has been notoriously difficult to manipulate and detect antiferromagnets by any practical means due to their compensated magnetic moment. This has left antiferromagnets over their hundred-year history virtually unexploited and only poorly explored, in striking contrast to the thousands of years of fascination and utility of ferromagnets. The project builds on our very recent discovery of a new relativistic spin-torque phenomenon that allow us to efficiently control antiferromagnetic moments in spintronic devices and by this to unlock a multitude of known and newly identified unique features of this “dormant-giant” class of materials. We propose to explore three intertwined research areas in order to scientifically establish: (i) The concept of antiferromagnetic memory-logic suitable for the development of future “Beyond Moore” information technologies. (ii) The concept of antiferromagnetic memory-logic components responding to pulses of lengths downscaled by twelve orders of magnitude from seconds to picoseconds. (iii) The concept in which antiferromagnets provide a unifying platform for realizing synergies among three prominent fields of contemporary condensed matter physics, namely spintronics, Dirac quasiparticles, and topological phases. Our very recent achievements, including the demonstration of a USB proof-of-concept antiferromagnetic memory, make Europe a birthplace of the emerging field of antiferromagnetic spintronics. To contribute in a decisive way that the future science and technology impact of the field remains in Europe, we bring together a critical mass of seven academic and a SME partner covering all the necessary skills.

Max Planck partner group

PI: Jakub Železný

Grant agency/scheme: Max Planck Society

From 2017-10-01 to 2019-09-30

Total funding: EUR 60 000 

Abstract:

The proposed project will focus on theoretical study of spintronics phenomena in antiferromagnets and other materials with complex magnetic orders. The main goal is obtaining a fundamental understanding of transport properties of these materials and finding efficient methods for electrical manipulation and detection of complex magnetic orders. We will also explore the role that topology plays in spintronics of complex magnetic structures. The work will be done in close collaboration with experimentalists.

LNSM - Laboratory of spintronics

PI: Vít Novák

Grant agency/scheme: Ministry of education, youth and sports

From: 2017-04-01 to: 2021-03-31

Total funding:  CZK 43 460 546 

Project number: CZ.02.1.01/0.0/0.0/16_013/0001405, OP Výzkum, vývoj, vzdělávání

Project web page

Abstract:

The aim of the project is to develop the emerging field of antiferromagnetic (AFM) spintronics as a new field of electronics based on spin in AFM materials. Project aims at establishing a material base of this field and at developing its theory. Experimental objective is to identify and demonstrate new principles for effective detection and manipulation of AFM spins and their use e.g. as nonvolatile ultrafast memory, robust against ionizing radiation and magnetic fields, capable of high integration.

Terahertz and neuromorphic memories based on antiferromagnets (TERANEU)

PI: Tomáš Jungwirth

Grant agency/scheme: Czech Science Foundation (GAČR)/EXPRO projects

From:  2019-01-01 to 2023-12-31

Total funding:  EUR 1 938 000

Project number: 19-28375X

Abstract:

Spintronic memories combine non-volatility with speed and are expected to complement conventional microelectronics as universal energy-efficient memories beyond the International Technology Roadmap of Semiconductors. The aim of the TERANEU project is to scientifically underpin future development of spintronic computer memories with speeds extended from the gigahertz to the terahertz range and the operation extended from the digital to the neuromorphic mode. The enabling materials are antiferromagnets and the research plan spans from fundamental exploration of topological phenomena and dynamics in these complex magnets, to imaging of magnetic textures, and designing artificial neural networks for realistic internet of things applications. The project builds on our recent discovery of electrical switching of an antiferromagnet by a relativistic spintronic effect, demonstration of a proof-of-concept antiferromagnetic memory with analogue characteristics compatible with common microelectronics, and initial experimental verification of writing by picosecond electrical-current pulses.

Ab-initio spintronics in unconventional magnetic materials

Spin-charge conversion and spin caloritronics at hybrid organic-inorganic interfaces (SC2)

PI: Joerg Wunderlich

Grant agency/scheme: European Research Council Synergy Grant

From:  2014-08-1 to: 2020-07-31

Total funding: EUR  1 034 995

Project number: 610115

Project web page

Abstract:

Organic semiconductors are enabling flexible, large-area optoelectronic devices, such as organic light-emitting diodes, transistors, and solar cells. Due to their exceptionally long spin lifetimes, these carbon-based materials could also have an important impact on spintronics, where carrier spins, rather than charges, play a key role in transmitting, processing and storing information. However, to exploit this potential, a method for direct conversion of spin information into an electric signal is indispensable. Spin-charge conversion in inorganic semiconductors and metals has mainly relied on the spin-orbit interaction, a fundamental relativistic effect which couples the motion of electrons to their spins. The spin-orbit interaction causes a flow of spins, a spin current, to induce an electric field perpendicular to both the spin polarization and the flow direction of the spin current. This is called the inverse spin Hall effect (ISHE). We have very recently been able to observe for the first time the inverse spin-Hall effect in an organic conductor. This breakthrough raises important questions for our
understanding of spin-charge conversion in materials with intrinsically weak spin-orbit coupling. It also expands dramatically the range of materials and structures available to address some currently not well understood scientific questions in spintronics and opens opportunities for realising novel spintronic devices for spin-based information processing and spin caloritronic energy harvesting that make use of unique properties of hybrid, organic-inorganic structures. The main objective of the proposed research is to take spintronics to a level that inorganic spintronics cannot reach on its own. The project is based on new theoretical and experimental methodologies arising at the interface between two currently disjoint scientific communities, organic semiconductors and inorganic spintronics, and aims to exploit synergies between chemistry, physics
and theory.

 

Ab-initio spintronics in unconventional magnetic materials 

PI:  Jakub Železný 

Grant agency/scheme: Czech Science Foundation (GAČR)/Junior projects

From:  2019-01-01 to 2021-12-31

Total funding: CZK 5 469 000

Project number: 19-18623Y

Abstract:

 

Among magnetically ordered materials, ferromagnets are the best known and the most explored, however, many other types of magnetic order exist. Their usefulness have been often underestimated in the past, but they have been attracting attention recently, mostly in connection with spintronics: the field which studies how the spin of the electron (in addition to its charge) can be utilized in novel micro- and opto-electronic devices. Unconventional magnetic orders such as antiferromagnets or non-collinear magnetic orders can bring various advantages or new functionalities for such devices. For example, antiferromagnets have naturally fast magnetic dynamics which could be utilized for very fast computer memories. In this project we will explore the various unconventional magnetic orders using ab-initio (i.e. first principles) theoretical calculations. The main goal is to understand the interplay between electrical currents and the unconventional magnetic orders and to identify materials and functionalities which could be utilized in novel microelectronic devices.

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