Opendata, web and dolomites


Ultrafast spin transport and magnetic order controlled by terahertz electromagnetic pulses

Total Cost €


EC-Contrib. €






Project "TERAMAG" data sheet

The following table provides information about the project.


Organization address
city: BERLIN
postcode: 14195

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 1˙984˙375 €
 EC max contribution 1˙984˙375 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-CoG
 Funding Scheme ERC-COG
 Starting year 2016
 Duration (year-month-day) from 2016-07-01   to  2021-06-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    FREIE UNIVERSITAET BERLIN DE (BERLIN) coordinator 1˙719˙313.00


 Project objective

In order to fully exploit the electron spin as a signal carrier in future information processing, spins need to be transported and flipped as fast as possible. Spintronics research aims at implementing these operations by electric fields in circuitry, but has so far been limited to frequencies below ~10 GHz. The much faster complementary femtomagnetism approach employs femtosecond laser pulses (carrier frequency ~400 THz), but is not compatible with microelectronics technology.

In the TERAMAG project, I will apply intense terahertz (THz) electromagnetic pulses to solids to realize 1) ultrafast transport of spins and magnons, and 2) ultrafast control over magnetic order. Our strategy relies on extending concepts from the fields of spintronics (electronics) and femtomagnetism (optics) to the elusive THz frequency gap (0.3 to 30 THz), thereby combining the benefits of both worlds.

To realize spin operations and open up new pathways to their implementation, it is essential to understand the underlying microscopic processes. THz radiation is an ideal tool for this task as it directly and uniquely interacts with many fundamental modes and couplings of solids at their natural frequencies. For example, by using ultrashort THz pulses, we will obtain unprecedented insights into the energetic structure of spin-orbit coupling of equilibrium and nonequilibrium conduction electrons (e.g. in metals and two-dimensional semiconductors) and into the unexplored but highly relevant interaction of optical phonons with spins, including magnons. Novel measurement schemes (e.g. of the spin Hall effect from ~0.3 to 30 THz) and applications (such as spintronic THz emitters and detectors) will emerge.


year authors and title journal last update
List of publications.
2018 Tom S. Seifert, Samridh Jaiswal, Joseph Barker, Sebastian T. Weber, Ilya Razdolski, Joel Cramer, Oliver Gueckstock, Sebastian F. Maehrlein, Lukas Nadvornik, Shun Watanabe, Chiara Ciccarelli, Alexey Melnikov, Gerhard Jakob, Markus Münzenberg, Sebastian T. B. Goennenwein, Georg Woltersdorf, Baerbel Rethfeld, Piet W. Brouwer, Martin Wolf, Mathias Kläui, Tobias Kampfrath
Femtosecond formation dynamics of the spin Seebeck effect revealed by terahertz spectroscopy
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-05135-2
Nature Communications 9/1 2019-06-18
2018 Kamil Olejník, Tom Seifert, Zdeněk Kašpar, Vít Novák, Peter Wadley, Richard P. Campion, Manuel Baumgartner, Pietro Gambardella, Petr Němec, Joerg Wunderlich, Jairo Sinova, Petr Kužel, Melanie Müller, Tobias Kampfrath, Tomas Jungwirth
Terahertz electrical writing speed in an antiferromagnetic memory
published pages: eaar3566, ISSN: 2375-2548, DOI: 10.1126/sciadv.aar3566
Science Advances 4/3 2019-06-18
2018 T S Seifert, N M Tran, O Gueckstock, S M Rouzegar, L Nadvornik, S Jaiswal, G Jakob, V V Temnov, M Münzenberg, M Wolf, M Kläui, T Kampfrath
Terahertz spectroscopy for all-optical spintronic characterization of the spin-Hall-effect metals Pt, W and Cu 80 Ir 20
published pages: 364003, ISSN: 0022-3727, DOI: 10.1088/1361-6463/aad536
Journal of Physics D: Applied Physics 51/36 2019-06-18
2018 Zhe Wang, S. Kovalev, N. Awari, Min Chen, S. Germanskiy, B. Green, J.-C. Deinert, T. Kampfrath, J. Milano, M. Gensch
Magnetic field dependence of antiferromagnetic resonance in NiO
published pages: 252404, ISSN: 0003-6951, DOI: 10.1063/1.5031213
Applied Physics Letters 112/25 2019-06-18
2018 P. Němec, M. Fiebig, T. Kampfrath, A. V. Kimel
Antiferromagnetic opto-spintronics
published pages: 229-241, ISSN: 1745-2473, DOI: 10.1038/s41567-018-0051-x
Nature Physics 14/3 2019-06-18
2016 Lukas Braun, Gregor Mussler, Andrzej Hruban, Marcin Konczykowski, Thomas Schumann, Martin Wolf, Markus Münzenberg, Luca Perfetti, Tobias Kampfrath
Ultrafast photocurrents at the surface of the three-dimensional topological insulator Bi2Se3
published pages: 13259, ISSN: 2041-1723, DOI: 10.1038/ncomms13259
Nature Communications 7 2019-06-18
2017 T. Seifert, U. Martens, S. Günther, M. A. W. Schoen, F. Radu, X. Z. Chen, I. Lucas, R. Ramos, M. H. Aguirre, P. A. Algarabel, A. Anadón, H. S. Körner, J. Walowski, C. Back, M. R. Ibarra, L. Morellón, E. Saitoh, M. Wolf, C. Song, K. Uchida, M. Münzenberg, I. Radu, T. Kampfrath
Terahertz Spin Currents and Inverse Spin Hall Effect in Thin-Film Heterostructures Containing Complex Magnetic Compounds
published pages: 1740010, ISSN: 2010-3247, DOI: 10.1142/s2010324717400100
SPIN 7 2019-06-18
2017 Mohsen Sajadi, Martin Wolf, Tobias Kampfrath
Transient birefringence of liquids induced by terahertz electric-field torque on permanent molecular dipoles
published pages: 14963, ISSN: 2041-1723, DOI: 10.1038/ncomms14963
Nature Communications 8 2019-06-18
2016 T. Seifert, S. Jaiswal, U. Martens, J. Hannegan, L. Braun, P. Maldonado, F. Freimuth, A. Kronenberg, J. Henrizi, I. Radu, E. Beaurepaire, Y. Mokrousov, P. M. Oppeneer, M. Jourdan, G. Jakob, D. Turchinovich, L. M. Hayden, M. Wolf, M. Münzenberg, M. Kläui, T. Kampfrath
Efficient metallic spintronic emitters of ultrabroadband terahertz radiation
published pages: 483-488, ISSN: 1749-4885, DOI: 10.1038/nphoton.2016.91
Nature Photonics 10/7 2019-06-18
2018 Tobias Kampfrath, Martin Wolf, Mohsen Sajadi
The sign of the polarizability anisotropy of polar molecules is obtained from the terahertz Kerr effect
published pages: 319-323, ISSN: 0009-2614, DOI: 10.1016/j.cplett.2017.12.061
Chemical Physics Letters 692 2019-06-18
2016 S. Baierl, J. H. Mentink, M. Hohenleutner, L. Braun, T.-M. Do, C. Lange, A. Sell, M. Fiebig, G. Woltersdorf, T. Kampfrath, R. Huber
Terahertz-Driven Nonlinear Spin Response of Antiferromagnetic Nickel Oxide
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.117.197201
Physical Review Letters 117/19 2019-06-18
2018 Tobias Kampfrath, R. Kramer Campen, Martin Wolf, Mohsen Sajadi
The Nature of the Dielectric Response of Methanol Revealed by the Terahertz Kerr Effect
published pages: 1279-1283, ISSN: 1948-7185, DOI: 10.1021/acs.jpclett.7b03281
The Journal of Physical Chemistry Letters 9/6 2019-06-18
2017 S. Kovalev, B. Green, T. Golz, S. Maehrlein, N. Stojanovic, A. S. Fisher, T. Kampfrath, M. Gensch
Probing ultra-fast processes with high dynamic range at 4th-generation light sources: Arrival time and intensity binning at unprecedented repetition rates
published pages: 24301, ISSN: 2329-7778, DOI: 10.1063/1.4978042
Structural Dynamics 4/2 2019-06-18
2018 Sebastian F. Maehrlein, Ilie Radu, Pablo Maldonado, Alexander Paarmann, Michael Gensch, Alexandra M. Kalashnikova, Roman V. Pisarev, Martin Wolf, Peter M. Oppeneer, Joseph Barker, Tobias Kampfrath
Dissecting spin-phonon equilibration in ferrimagnetic insulators by ultrafast lattice excitation
published pages: eaar5164, ISSN: 2375-2548, DOI: 10.1126/sciadv.aar5164
Science Advances 4/7 2019-06-18
2017 Sebastian Maehrlein, Alexander Paarmann, Martin Wolf, Tobias Kampfrath
Terahertz Sum-Frequency Excitation of a Raman-Active Phonon
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.119.127402
Physical Review Letters 119/12 2019-06-18
2018 Dominik M. Juraschek, Sebastian F. Maehrlein
Sum-frequency ionic Raman scattering
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.97.174302
Physical Review B 97/17 2019-06-18
2019 R. I. Herapath, S. M. Hornett, T. S. Seifert, G. Jakob, M. Kläui, J. Bertolotti, T. Kampfrath, E. Hendry
Impact of pump wavelength on terahertz emission of a cavity-enhanced spintronic trilayer
published pages: 41107, ISSN: 0003-6951, DOI: 10.1063/1.5048297
Applied Physics Letters 114/4 2019-04-20

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