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Imaging gate-tunable Tomonaga–Luttinger liquids in 1H-MoSe2 mirror twin boundaries

https://doi.org/10.1038/s41563-022-01277-3

Zhu, Tiancong ; Ruan, Wei ; Wang, Yan-Qi ; Tsai, Hsin-Zon ; Wang, Shuopei ; Zhang, Canxun ; Wang, Tianye ; Liou, Franklin ; Watanabe, Kenji ; Taniguchi, Takashi ; et al ( July 2022 , Nature Materials)

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Experimental realization of linearly polarized x-ray detected ferromagnetic resonance

https://doi.org/10.1088/1367-2630/ac465f

Klewe, C. ; Emori, S. ; Li, Q. ; Yang, M. ; Gray, B. A. ; Jeon, H-M ; Howe, B. M. ; Suzuki, Y. ; Qiu, Z. Q. ; Shafer, P. ; et al ( January 2022 , New Journal of Physics)

Abstract
We present the first theoretical and experimental evidence of time-resolved dynamic x-ray magnetic linear dichroism (XMLD) measurements of GHz magnetic precessions driven by ferromagnetic resonance in both metallic and insulating thin films. Our findings show a dynamic XMLD in both ferromagnetic Ni₈₀Fe₂₀and ferrimagnetic Ni_0.65Zn_0.35Al_0.8Fe_1.2O₄for different measurement geometries and linear polarizations. A detailed analysis of the observed signals reveals the importance of separating different harmonic components in the dynamic signal in order to identify the XMLD response without the influence of competing contributions. In particular, RF magnetic resonance elicits a large dynamic XMLD response at the fundamental frequency under experimental geometries with oblique x-ray polarization. The geometric range and experimental sensitivity can be improved by isolating the 2ωFourier component of the dynamic response. These results illustrate the potential of dynamic XMLD and represent a milestone accomplishment toward the study of GHz spin dynamics in systems beyond ferromagnetic order.

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Ni and CoO spin cantings induced by Fe layer in Ni/CoO/Fe/vicinal MgO(001)

https://doi.org/10.1103/PhysRevB.96.214405

Li, Q. ; Yang, M. ; N'Diaye, A. T. ; Dong, Q. Y. ; Scholl, A. ; Young, A. T. ; Gao, N. ; Arenholz, E. ; Hwang, C. ; Li, J. ; et al ( December 2017 , Physical Review B)
Field dependence of antiferromagnetic domain switching in epitaxial Fe/CoO/MgO(001) systems

https://doi.org/10.1103/PhysRevB.96.024420

Li, Q. ; Ma, T. P. ; Yang, M. ; Sun, L. ; Huang, S. Y. ; Li, R. W. ; Won, C. ; Qiu, Z. Q. ; Wu, Y. Z. ( July 2017 , Physical Review B)
Topology of spin meron pairs in coupled Ni/Fe/Co/Cu(001) disks

https://doi.org/10.1103/PhysRevB.94.014433

Tan, A. ; Li, J. ; Scholl, A. ; Arenholz, E. ; Young, A. T. ; Li, Q. ; Hwang, C. ; Qiu, Z. Q. ( July 2016 , Physical Review B)
Discovery of intrinsic ferromagnetism in two-dimensional van der Waals crystals

https://doi.org/10.1038/nature22060

Gong, Cheng ; Li, Lin ; Li, Zhenglu ; Ji, Huiwen ; Stern, Alex ; Xia, Yang ; Cao, Ting ; Bao, Wei ; Wang, Chenzhe ; Wang, Yuan ; et al ( June 2017 , Nature)
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Direct Detection of Pure ac Spin Current by X-Ray Pump-Probe Measurements

https://doi.org/10.1103/PhysRevLett.117.076602

Li, J. ; Shelford, L. R. ; Shafer, P. ; Tan, A. ; Deng, J. X. ; Keatley, P. S. ; Hwang, C. ; Arenholz, E. ; van der Laan, G. ; Hicken, R. J. ; et al ( August 2016 , Physical Review Letters)
Chirality Switching and Winding or Unwinding of the Antiferromagnetic NiO Domain Walls in Fe/NiO/Fe/CoO/Ag(001)

https://doi.org/10.1103/PhysRevLett.113.147207

Li, J. ; Tan, A. ; Ma, S. ; Yang, R. F. ; Arenholz, E. ; Hwang, C. ; Qiu, Z. Q. ( October 2014 , Physical Review Letters)
Tuning magnetic anisotropy of epitaxial Ag/Fe/Fe 0.5 Co 0.5 /MgO(001) films

https://doi.org/10.1063/1.5052297

Gao, N. ; Ge, C. ; Li, Q. ; Yang, M. ; Hwang, C. ; Qiu, Z. Q. ( October 2018 , Journal of Applied Physics)
Activation of antiferromagnetic domain switching in exchange-coupled Fe/CoO/MgO(001) systems

https://doi.org/10.1103/PhysRevB.91.134428

Li, Q. ; Chen, G. ; Ma, T. P. ; Zhu, J. ; N'Diaye, A. T. ; Sun, L. ; Gu, T. ; Huo, Y. ; Liang, J. H. ; Li, R. W. ; et al ( April 2015 , Physical Review B)

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