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Articles by Jun Okamoto
Persistent paramagnons in high-temperature infinite-layer nickelate superconductors
Abstract The recent discovery of high-temperature superconductivity in hole-doped SmNiO2, exhibiting the record-high transition temperature Tc among infinite-layer (IL) nickelates, has opened a new avenue for exploring design principles of superconductivity. Experimentally determining the electronic structure and magnetic interactions in this new system is crucial to elucidating the mechanism behind the enhanced superconductivity.
Enhanced superconductivity and mixed-dimensional behaviour in infinite-layer samarium nickelate thin films - Nature Communications
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Abstract Rare-earth infinite-layer nickelates are emerging unconventional superconductors, with materials synthesis largely limited to early lanthanide compounds. Here, we report phase-pure samarium-based nickelate thin films on (LaAlO3)0.3(Sr2TaAlO6)0.7 (001) substrates, including the first demonstration of Sm1-xSrxNiO2.
By Mingwei Yang, Heng Wang, Jiayin Tang, Xianfeng Wu, Wenjing Xu, Aile Wang, Yuetong Wu, Ruilin Mao, Ze Wang, Zhicheng Pei, Zhengang Dong, Bohan Feng, Wenjie Meng, Qingyou Lu, Jun Okamoto, Hsiao-Yu Huang, Di-Jing Huang, Haoliang Huang, Qisi Wang, Peng Gao, Zhuoyu Chen, Danfeng Li, Junping Luo, Guangdi Zhou, Lingchi Shi, Chuanying Xi
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Nature
Verified
Spin excitations and flat electronic bands in a Cr-based kagome superconductor - Nature Communications
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Abstract In the quest for topology- and correlation-driven quantum states, kagome lattice materials have garnered significant interest for their band structures, featuring flat bands (FBs) from the quantum destructive interference of the electronic wavefunction. Tuning an FB to the chemical potential could induce electronic instabilities and emergent orders.
By Zehao Wang, Yucheng Guo, Hsiao-Yu Huang, Bin Gao, Han Wu, Jun Okamoto, Chien-Te Chen, Feng Ye, Xingye Lu, Zhaoyu Liu, Zheng Ren, Yuan Fang, Yichen Zhang, Ziqin Yue, Cheng Hu, Chris Jozwiak, Aaron Bostwick, Eli Rotenberg, Makoto Hashimoto, Donghui Lu, Junichiro Kono, Jiun-Haw Chu, Boris I. Yakobson, Robert Birgeneau, Guang-Han Cao, Atsushi Fujimori, Ming Yi, Di-Jing Huang
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Nature
Verified
Giant X‐Ray Circular Dichroism in a Time‐Reversal Invariant Antiferromagnet
X-ray circular dichroism, arising from the contrast in X-ray absorption between opposite photon helicities, serves as a spectroscopic tool to measure the magnetization of ferromagnetic materials and identify the handedness of chiral crystals. Antiferromagnets with crystallographic chirality typically lack X-ray magnetic circular dichroism because of time-reversal symmetry, yet exhibit weak X-ray natural circular dichroism.
Current Landscape of Sonodynamic Therapy for Treating Cancer
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