Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Alexey Ponomaryov"'
Autor:
Thomas W. J. Metzger, Kirill A. Grishunin, Chris Reinhoffer, Roman M. Dubrovin, Atiqa Arshad, Igor Ilyakov, Thales V. A. G. de Oliveira, Alexey Ponomaryov, Jan-Christoph Deinert, Sergey Kovalev, Roman V. Pisarev, Mikhail I. Katsnelson, Boris A. Ivanov, Paul H. M. van Loosdrecht, Alexey V. Kimel, Evgeny A. Mashkovich
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-7 (2024)
Abstract Understanding spin-lattice interactions in antiferromagnets is a critical element of the fields of antiferromagnetic spintronics and magnonics. Recently, coherent nonlinear phonon dynamics mediated by a magnon state were discovered in an ant
Externí odkaz:
https://doaj.org/article/a0e409469c954d7fa52b3ee15f5452aa
Autor:
Igor Ilyakov, Arne Brataas, Thales V. A. G. de Oliveira, Alexey Ponomaryov, Jan-Christoph Deinert, Olav Hellwig, Jürgen Faßbender, Jürgen Lindner, Ruslan Salikhov, Sergey Kovalev
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract Efficient generation and control of spin currents launched by terahertz (THz) radiation with subsequent ultrafast spin-to-charge conversion is the current challenge for the next generation of high-speed communication and data processing unit
Externí odkaz:
https://doaj.org/article/54c58cd666714896b62bb8b3aee5c93e
Autor:
Atiqa Arshad, Hatice Nur Koyun, Ruslan Salikhov, Michael Gensch, Igor Ilyakov, Alexey Ponomaryov, Gulloo Lal Prajapati, Thales V. A. G. de Oliveira, Kalliopi Mavridou, Jürgen Lindner, Jan-Christoph Deinert, Cumhur Gökhan Ünlü, Sergey Kovalev
Publikováno v:
Advanced Photonics Research, Vol 4, Iss 7, Pp n/a-n/a (2023)
The third harmonic generation (THG) of graphite layers on paper substrate upon excitation with intense (up to 100 kV cm−1) narrowband terahertz (THz) pulses is studied. Highest THG efficiencies are comparable with those of chemical vapor deposition
Externí odkaz:
https://doaj.org/article/2e16917cb4a843838f29877a738305ce
Autor:
Fanqi Meng, Frederik Walla, Sergey Kovalev, Jan-Christoph Deinert, Igor Ilyakov, Min Chen, Alexey Ponomaryov, Sergey G. Pavlov, Heinz-Wilhelm Hübers, Nikolay V. Abrosimov, Christoph Jungemann, Hartmut G. Roskos, Mark D. Thomson
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043141 (2023)
We investigate ultrafast harmonic generation (HG) in Si:B, driven by intense pump pulses with fields reaching ∼100kVcm^{−1} and a carrier frequency of 300 GHz, at 4 K and 300 K, both experimentally and theoretically. We report several findings co
Externí odkaz:
https://doaj.org/article/97e7faecbcdf42079d00a04964207721
Autor:
Ruslan Salikhov, Igor Ilyakov, Lukas Körber, Attila Kákay, Rodolfo A. Gallardo, Alexey Ponomaryov, Jan-Christoph Deinert, Thales V. A. G. de Oliveira, Kilian Lenz, Jürgen Fassbender, Stefano Bonetti, Olav Hellwig, Jürgen Lindner, Sergey Kovalev
Publikováno v:
Nature Physics 13(2023), 529-535
Spin-based technologies can operate at terahertz frequencies but require manipulation techniques that work at ultrafast timescales to become practical. For instance, devices based on spin waves, also known as magnons, require efficient generation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d56a46cd425ee65b96aae0f2f9318e96
https://www.hzdr.de/publications/Publ-35382-1
https://www.hzdr.de/publications/Publ-35382-1
Autor:
Igor Ilyakov, Alexey Ponomaryov, David Saleta Reig, Conor Murphy, Jake Dudley Mehew, Thales V.A.G. de Oliveira, Gulloo Lal Prajapati, Atiqa Arshad, Jan-Christoph Deinert, Monica Felicia Craciun, Saverio Russo, Sergey Kovalev, Klaas-Jan Tielrooij
Publikováno v:
Nano Letters 23(2023)9, 3872-3878
Several technologies, including photodetection, imaging, and data communication, could greatly benefit from the availability of fast and controllable conversion of terahertz (THz) light to visible light. Here, we demonstrate that the exceptional prop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d6fc2f68839cb9656feaf0d86cf6195
https://doi.org/10.1021/acs.nanolett.3c00507
https://doi.org/10.1021/acs.nanolett.3c00507
Autor:
Ruslan Salikhov, Igor Ilyakov, Lukas Körber, Attila Kakay, Rodolfo Gallardo, Alexey Ponomaryov, Jan-Christoph Deinert, Thales Oliveira, Kilian Lenz, Jürgen Fassbender, Stefano Bonetti, Olav Hellwig, Jürgen Lindner, Sergey Kovalev
Nonvolatile and energy-efficient spin-based technologies call for new prospects for realization of logic devices able to operate at terahertz (THz) frequencies. For instance, magnonic elements require an efficient generation of high-energy exchange s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::578f29cb4e8b25d15576c62c02528f47
https://doi.org/10.21203/rs.3.rs-1669114/v1
https://doi.org/10.21203/rs.3.rs-1669114/v1
Autor:
Sergei Zvyagin, Shelby E. Stavretis, Joshua Telser, J. Krzystek, Ching-Chin Chen, Peter P.-Y. Chen, J. Wosnitza, Pagnareach Tin, Mykhaylo Ozerov, Zi-Ling Xue, Alexey Ponomaryov
Publikováno v:
Applied Magnetic Resonance. 51:1411-1432
High-Frequency and -Field EPR (HFEPR) studies of Fe(TPP)X (X = F, Cl, Br; I, TPP2−= meso-tetraphenylporphyrinate dianion) and far-IR magnetic spectroscopic (FIRMS) studies of Fe(TPP)Br and Fe(TPP)I have been conducted to probe magnetic intra- and i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d34112de9fa326672f6861ff589091d
https://doi.org/10.1007/s00723-020-01236-8
https://doi.org/10.1007/s00723-020-01236-8
Autor:
J. Wosnitza, Alexey Ponomaryov, N. Khan, Sergei Zvyagin, Alexander A. Tsirlin, M. E. Zhitomirsky, L. Bhaskaran
Publikováno v:
Physical Review B. 104
We report on high-field electron spin resonance studies of two iridium hexahalide compounds ${({\mathrm{NH}}_{4})}_{2}{\mathrm{IrCl}}_{6}$ and ${\mathrm{K}}_{2}{\mathrm{IrCl}}_{6}$. In the paramagnetic state, our measurements reveal isotropic $g$ fac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f7fccd656ef2ed6e96ddb2cf8f27113
https://doi.org/10.1103/physrevb.104.184404
https://doi.org/10.1103/physrevb.104.184404
Autor:
Nikolay V. Abrosimov, Christoph Jungemann, Sergey Pavlov, Sergey Kovalev, Heinz-Wilhelm Hübers, Hartmut G. Roskos, Jan-Christoph Deinert, Min Chen, Alexey Ponomaryov, Frederik Walla, Igor Ilyakov, Mark D. Thomson, Fanqi Meng, Qamar ul-Islam
Publikováno v:
2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
We report high-harmonic generation up to the ninth order from boron-doped Si at room temperature, pumped by intense THz pulses. For comparison with the experiment, we also performed FDTD simulations coupled to a full-band Monte Carlo device model. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::437d8378a0782614ed808c9edb25d712
https://doi.org/10.1109/irmmw-thz50926.2021.9567287
https://doi.org/10.1109/irmmw-thz50926.2021.9567287