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Extraordinary Magnetic Response of an Anisotropic 2D Antiferromagnet via Site Dilution

https://doi.org/10.1021/acs.nanolett.3c02470

Yang, Junyi ; Suwa, Hidemaro ; Meyers, Derek ; Zhang, Han ; Horak, Lukas ; Zhang, Zhan ; Karapetrova, Evguenia ; Kim, Jong-Woo ; Ryan, Philip J. ; Dean, Mark P. ; et al ( December 2023 , Nano Letters)

Free, publicly-accessible full text available December 27, 2024
Epitaxial growth and antiferromagnetism of Sn-substituted perovskite iridate SrIr0.8Sn0.2O3

https://doi.org/10.1103/PhysRevMaterials.3.124411

Yang, Junyi ; Hao, Lin ; Cui, Qi ; Lin, Jiaqi ; Horak, Lukas ; Liu, Xuerong ; Zhang, Lu ; Yang, Huaixin ; Karapetrova, Jenia ; Kim, Jong-Woo ; et al ( December 2019 , Physical Review Materials)

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Strain-Modulated Slater-Mott Crossover of Pseudospin-Half Square-Lattice in (SrIrO3)1/(SrTiO3)1 Superlattices

https://doi.org/10.1103/PhysRevLett.124.177601

Yang, Junyi ; Hao, Lin ; Meyers, Derek ; Dasa, Tamene ; Xu, Liubin ; Horak, Lukas ; Shafer, Padraic ; Arenholz, Elke ; Fabbris, Gilberto ; Choi, Yongseong ; et al ( April 2020 , Physical Review Letters)

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Laser-induced transient magnons in Sr 3 Ir 2 O 7 throughout the Brillouin zone

https://doi.org/10.1073/pnas.2103696118

Mazzone, Daniel G. ; Meyers, Derek ; Cao, Yue ; Vale, James G. ; Dashwood, Cameron D. ; Shi, Youguo ; James, Andrew J. ; Robinson, Neil J. ; Lin, Jiaqi ; Thampy, Vivek ; et al ( June 2021 , Proceedings of the National Academy of Sciences)

Although ultrafast manipulation of magnetism holds great promise for new physical phenomena and applications, targeting specific states is held back by our limited understanding of how magnetic correlations evolve on ultrafast timescales. Using ultrafast resonant inelastic X-ray scattering we demonstrate that femtosecond laser pulses can excite transient magnons at large wavevectors in gapped antiferromagnets and that they persist for several picoseconds, which is opposite to what is observed in nearly gapless magnets. Our work suggests that materials with isotropic magnetic interactions are preferred to achieve rapid manipulation of magnetism.
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