Dual-shot dynamics and ultimate frequency of all-optical magnetic recording on GdFeCo

Sicong Wang; Chen Wei; Yuanhua Feng; Hongkun Cao; Wenzhe Li; Yaoyu Cao; Bai-Ou Guan; Arata Tsukamoto; Andrei Kirilyuk; Alexey V. Kimel; Xiangping Li

doi:10.1038/s41377-020-00451-z

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Dual-shot dynamics and ultimate frequency of all-optical magnetic recording on GdFeCo

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- Dual-shot dynamics and ultimate frequency of all-optical magnetic recording on GdFeCo
- Dual-shot dynamics and ultimate frequency of all-optical magnetic recording on GdFeCo
- LSA 2021年10卷第1期页码：98-105
- Affiliations：
  
  1.Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
  2.Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
  3.Department of Electronic Engineering, College of Information Science and Technology, Jinan University, Guangzhou 510632, China
  4.Institute of New Energy Technology, Department of Electronic Engineering, College of Information Science and Technology, Jinan University, Guangzhou 510632, China
  5.College of Science and Technology, Nihon University, 7-24-1 Funabashi, Chiba 274-8501, Japan
  6.FELIX Laboratory, Radboud University, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
- Author bio：
  
  Alexey V. Kimel (Aleksei.Kimel@ru.nl)
  Xiangping Li (xiangpingli@jnu.edu.cn)
- Funds：
- DOI：10.1038/s41377-020-00451-z
  中图分类号：
- 纸质出版日期：2021，
  
  网络出版日期：2021-01-06，
  
  收稿日期：2020-06-24，
  
  修回日期：2020-12-05，
  
  录用日期：2020-12-07
- Accepted：
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Dual-shot dynamics and ultimate frequency of all-optical magnetic recording on GdFeCo[J]. LSA, 2021,10(1):98-105.

Wang, S. C. et al. Dual-shot dynamics and ultimate frequency of all-optical magnetic recording on GdFeCo. Light: Science & Applications, 10, 98-105 (2021).
Dual-shot dynamics and ultimate frequency of all-optical magnetic recording on GdFeCo[J]. LSA, 2021,10(1):98-105. DOI： 10.1038/s41377-020-00451-z.

Wang, S. C. et al. Dual-shot dynamics and ultimate frequency of all-optical magnetic recording on GdFeCo. Light: Science & Applications, 10, 98-105 (2021). DOI： 10.1038/s41377-020-00451-z.

摘要

Abstract

Although photonics presents the fastest and most energy-efficient method of data transfer

magnetism still offers the cheapest and most natural way to store data. The ultrafast and energy-efficient optical control of magnetism is presently a missing technological link that prevents us from reaching the next evolution in information processing. The discovery of all-optical magnetization reversal in GdFeCo with the help of 100 fs laser pulses has further aroused intense interest in this compelling problem. Although the applicability of this approach to high-speed data processing depends vitally on the maximum repetition rate of the switching

the latter remains virtually unknown. Here we experimentally unveil the ultimate frequency of repetitive all-optical magnetization reversal through time-resolved studies of the dual-shot magnetization dynamics in Gd

63.87

9.13

. Varying the intensities of the shots and the shot-to-shot separation

we reveal the conditions for ultrafast writing and the fastest possible restoration of magnetic bits. It is shown that although magnetic writing launched by the first shot is completed after 100 ps

a reliable rewriting of the bit by the second shot requires separating the shots by at least 300 ps. Using two shots partially overlapping in space and minimally separated by 300 ps

we demonstrate an approach for GHz magnetic writing that can be scaled down to sizes below the diffraction limit.

关键词

Keywords

references

Hu, X. Y. et al. Picosecond and low-power all-optical switching based on an organic photonic-bandgap microcavity.Nat. Photonics2, 185-189 (2008)..

Volz, T. et al. Ultrafast all-optical switching by single photons.Nat. Photonics6, 605-609 (2012)..

Kimel, A. V. et al. Laser-induced ultrafast spin reorientation in the antiferromagnet TmFeO3.Nature429, 850-863 (2004)..

Kimel, A. V. et al. Ultrafast non-thermal control of magnetization by instantaneous photomagnetic pulses.Nature435, 655-657 (2005)..

Vahaplar, K. et al. Ultrafast path for optical magnetization reversal via a strongly nonequilibrium state.Phys. Rev. Lett.103, 117201 (2009)..

Kirilyuk, A. , Kimel, A. V.&Rasing, T. Ultrafast optical manipulation of magnetic order.Rev. Mod. Phys.82, 2731-2784 (2010)..

Radu, I. et al. Transient ferromagnetic-like state mediating ultrafast reversal of antiferromagnetically coupled spins.Nature472, 205-208 (2011)..

Ostler, T. A. et al. Ultrafast heating as a sufficient stimulus for magnetization reversal in a ferrimagnet.Nat. Commun.3, 666 (2012)..

Stupakiewicz, A. et al. Ultrafast nonthermal photo-magnetic recording in a transparent medium.Nature542, 71-74 (2017)..

Atxitia, U.&Ostler, T. A. Ultrafast double magnetization switching inGdFeCo with two picosecond-delayed femtosecond pump pulses.Appl. Phys. Lett.113, 062402 (2018)..

Kimel, A. V.&Li, M. Writing magnetic memory with ultrashort light pulses.Nat. Rev. Mater.4, 189-200 (2019)..

Stanciu, C. D. et al. All-optical magnetic recording with circularly polarized light.Phys. Rev. Lett.99, 047601 (2007)..

Khorsand, A. R. et al. Role of magnetic circular dichroism in all-optical magnetic recording.Phys. Rev. Lett.108, 127205 (2012)..

Finazzi, M. et al. Laser-induced magnetic nanostructures with tunable topological properties.Phys. Rev. Lett.110, 177205 (2013)..

Liu, T. M. et al. Nanoscale confinement of all-optical magnetic switching in TbFeCo - competition with nanoscale heterogeneity.Nano Lett.15, 6862-6868 (2015)..

Manz, S. et al. Reversible optical switching of antiferromagnetism in TbMnO3.Nat. Photonics10, 653-656 (2016)..

Chen, J. Y. et al. All-optical switching of magnetic tunnel junctions with single subpicosecond laser pulses.Phys. Rev. Appl.7, 021001 (2017)..

Ignatyeva, D. O. et al. Plasmonic layer-selective all-optical switching of magnetization with nanometer resolution.Nat. Commun.10, 4786 (2019)..

Hirohata, A.&Takanashi, K. Future perspectives for spintronic devices.J. Phys. D Appl. Phys.47, 193001 (2014)..

Alebrand, S. et al. Light-induced magnetization reversal of high-anisotropy TbCo alloy films.Appl. Phys. Lett.101, 162408 (2012)..

Hassdenteufel, A. et al. Thermally assisted all-optical helicity dependent magnetic switching in amorphous Fe100-xTbxalloy films.Adv. Mater.25, 3122-3128 (2013)..

Mangin, S. et al. Engineered materials for all-optical helicity-dependent magnetic switching.Nat. Mater.13, 286-292 (2014)..

Lambert, C. H. et al. All-optical control of ferromagnetic thin films and nanostructures.Science345, 1337-1340 (2014)..

Wang, S. C. et al. All-optical helicity-dependent magnetic switching by first-order azimuthally polarized vortex beams.Appl. Phys. Lett.113, 171108 (2018)..

Faraday, M. On the magnetization of light and the illumination of magnetic lines of force.Philos. Trans. R. Soc. Lond.136, 1 (1846)..

Stanciu, C. D. et al. Ultrafast spin dynamics across compensation points in ferrimagnetic GdFeCo: the role of angular momentum compensation.Phys. Rev. B73, 220402 (2006)..

Vahaplar, K. et al. All-optical magnetization reversal by circularly polarized laser pulses: experiment and multiscale modeling.Phys. Rev. B85, 104402 (2012)..

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