Principles of spintronic THz emitters
Open accessAbstract
Significant progress has been made in answering fundamental questions about how and, more importantly, on what time scales interactions between electrons, spins, and phonons occur in solid state materials. These complex interactions are leading to the first real applications of terahertz (THz) spintronics: THz emitters that can compete with traditional THz sources and provide additional functionalities enabled by the spin degree of freedom. This Tutorial article is intended to provide the background necessary to understand, use, and improve THz spintronic emitters. A particular focus is the introduction of the physical effects that underlie the operation of spintronic THz emitters. These effects were, for the most part, first discovered through traditional spin-transport and spintronic studies. We, therefore, begin with a review of the historical background and current theoretical understanding of ultrafast spin physics that has been developed over the past 25 years. We then discuss standard experimental techniques for the characterization of spintronic THz emitters and—more broadly—ultrafast magnetic phenomena. We next present the principles and methods of the synthesis and fabrication of various types of spintronic THz emitters. Finally, we review recent developments in this exciting field including the integration of novel material platforms such as topological insulators as well as antiferromagnets and materials with unconventional spin textures.
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The inverse spin Hall effect involves spin current generation in a time-reversal-broken ferromagnetic material transformed to a net charge current due to nonzero net momentum defined by a parity-broken interface with a non-magnetic material.
“This occurs in the inverse spin Hall effect, which involves the combination of spin current generation in a -broken ferromagnetic material that is transformed to a net charge current due to a nonzero net momentum defined by a -broken interface (analogous to a photoemission process) with a non-magnetic material53,59”
From Ultrafast terahertz emission from emerging symmetry-broken materials (2023) · cites this paper as [59]
Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.
Experimental — accuracy not yet measured
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
The citation lists haven’t been fetched yet
References 173 · Cited by 84
Research works printed but not linked: 14
- a) A schematic depiction of a hybrid semiconductor/spintronic THz emitter. (b) The measured spectrum obtained with such a hybrid detector. Reproduced with permission from Chen et al., Adv. Optical Mater. 7, 1801608 (2019). Copyright 2019 John Wiley and Sons.
- I. Wilke and S. Sengupta, "Nonlinear optical techniques for terahertz pulse generation and detection -Optical rectification and electrooptic sampling," in Terahertz Spectroscopy: Principles and Applications, edited by S. L. Dexheimer (CRC Press, 2007), pp. 41-72.
- 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, and T. Kampfrath, Nat. Photon. 10, 483 (2016). · DOI · Paper page
- M. B. Jungfleisch, W. Zhang, R. Winkler, and A. Hoffmann, in Spin Physics in Semiconductors, Springer Series in Solid-State Sciences Vol. 157, edited by M. I. Dyakonov (Springer International Publishing, Cham, 2017), pp. 355-385.
- G. Pikus and E. L. Ivchenko, JETP Lett. 27, 604 (1978).
- P. A. Crowell and S. A. Crooker, Spintronics Handbook: Spin Transport and Magnetism, 2nd ed. (2019), pp. 269-315.
- L. Thomas and S. Parkin, in Volume 2: Micromagnetism (John Wiley & Sons, Ltd, 2007).
- A. G. Gurevich and G. A. Melkov, Magnetization Oscillations and Waves (CRC Press, 1996).
- S. Kokado and M. Tsunoda, in Advanced Engineering Materials III, Advanced Materials Research Vol. 750 (Trans Tech Publications Ltd, 2013), pp. 978-982. 116
- S. Lendinez, Y. Li, W. Wu, M. T. Kaffash, Q. Zhang, W. Zhang, J. E. Pearson, R. Divan, R. D. Schaller, A. Hoffmann, H. Wen, and M. B. Jungfleisch, in Spintronics XII (International Society for Optics and Photonics, 2019), p. 1109013. 145
- T. S. Seifert, S. Jaiswal, J. Barker, S. T. Weber, I. Razdolski, J. Cramer, O. Gueckstock, S. F. Maehrlein, L. Nadvornik, S. Watanabe, C. Ciccarelli, A. Melnikov, G. Jakob, M. Münzenberg, S. T. B. Goennenwein, G. Woltersdorf, B. Rethfeld, P. W. Brouwer, M. Wolf, M. Kläui, and T. Kampfrath, Nat. Commun. 9, 363001 (2018). 148
- Q. Zhang, Y. Yang, Z. Luo, Y. Xu, R. Nie, X. Zhang, and Y. Wu, Phys. Rev. Appl. 13, 054016 (2020). 166 · DOI
- M. Chen, Y. Wu, Y. Liu, K. Lee, X. Qiu, P. He, J. Yu, and H. Yang, Adv. Opt. Mater. 7, 1801608 (2019). 169
- E. Th. Papaioannou, G. Torosyan, S. Keller, L. Scheuer, M. Battiato, V. K. Mag-usara, J. L'huillier, M. Tani, and R. Beigang, IEEE Trans. Magnetics 54, 9100205 (2018).
- Authors
- Wu, W., Yaw Ameyaw, C., Doty, M. F., & Jungfleisch, M. B.
- Affiliations
- University of Delaware (US)
- Department of Materials Science and Engineering, University of Delaware 2 , Newark, Delaware 19716, USA
- Corresponding author
- Jungfleisch, M. Benjamin
- Venue
- Journal of Applied Physics
- Publisher
- AIP Publishing
- Published
- 2021-09-01
- Volume
- 130
- Issue
- 9
- ISSN
- 0021-8979 (ISSN-L)
- 1089-7550
- OpenAlex
- W3192110648
- Cited by
- 84
- References
- 173
- Citations by year
- 2026: 18 · 2025: 19 · 2024: 16 · 2023: 17 · 2022: 13 · 2021: 1
- FWCI
- 5.11
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of Applied Physics (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Funders
- National Science Foundation (DMR-2011824, 1833000)
- University of Delaware Research Foundation
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Magnetic properties of thin films
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Terahertz technology and applications
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum and electron transport phenomena
- Keywords
- spintronic terahertz emitters, ultrafast spin dynamics, spin-phonon coupling, spin transport, terahertz sources, topological insulators, antiferromagnets
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
