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·Scientific Research
Research Interest
Because of the interplay among various degrees of freedom, including spin, charge, orbital, symmetry, topology and dimensionality, quantum materials offer an exceptional venue for emerging phenomena and applications, in magnetism, superconductivity, interface engineering and quantum information. Precisely due to this interplay, spin provides a unique view and an effective way to probe and control the fascinating properties and emerging phenomena in quantum materials and ultimately for game changing devices.
We aim to understand the spin phenomena in quantum materials and harness their potential for groundbreaking technologies, with a large effect on cutting-edge research of developing novel quantum materials and thin films, discovering new spintronic phenomena and exploring their applications for quantum information.
[1] topological magnetic materials
[2] two-dimensional materials and heterostructures
[3] spin-triplet superconductors
[4] insulating quantum materials
Publications
^: equal contribution *: corresponding author
Kang-Kuo Wu, Hsin-Man Lee, Jinsong Xu, Pei-Ying Yang, C. L. Chien, Ssu-Yen Huang, and Danru Qu, “Magnon spin current from a non-collinear magnetic phase in a compensated rare earth ferrimagnet”, Appl. Phys. Lett. 124, 102407 (2024) |
Jinsong Xu*, Jiaming He, J.-S. Zhou, Danru Qu, Ssu-Yen Huang, and C. L. Chien*, “Electrical Seebeck contrast observation of magnon Hall effect in topological Ferromagnet Lu2V2O7/heavy metal heterostructures”, Phys. Rev. B 109, L020401 (2024) |
Jinsong Xu*, Weiwei Lin, Jiaming He, J.-S. Zhou, Danru Qu, Ssu-Yen Huang, and C. L. Chien*, “Vector spin Seebeck effect and spin swapping effect in antiferromagnetic insulators with non-collinear spin structure ”, APL Mater. 11, 091102 (2023) |
Jinsong Xu^*, Jiaming He^, J.-S. Zhou, Danru Qu, Ssu-Yen Huang, and C. L. Chien*, “Observation of Vector Spin Seebeck Effect in a Noncollinear Antiferromagnet”, Phys. Rev. Lett. 129, 117202 (2022) |
Weiwei Lin, Jiaming He, Bowen Ma, Matthew Matzelle, Jinsong Xu, John Freeland, Yongseong Choi, Daniel Haskel, Bernardo Barbiellini, Arun Bansil, Gregory A. Fiete, Jianshi Zhou, and C. L. Chien, “Evidence for spin swapping in an antiferromagnet”, Nat. Phys. 18, 800-805 (2022) |
Jinsong Xu* and C. L. Chien*, “Voltage-controlled spin–orbit torque switching in W/CoFeB/MgO”, Appl. Phys. Lett. 118, 052409 (2021) |
Jinsong Xu*, W. Adam Phelan and C. L. Chien, “Large Anomalous Nernst Effect in a van der Waals Ferromagnet Fe3GeTe2 ”, Nano Lett. 19, 8250-8254 (2019) |
Jinsong Xu, Tiancong Zhu, Yunqiu Kelly Luo, Yuan-Ming Lu and Roland K. Kawakami, “Strong and Tunable Spin Lifetime Anisotropy in Dual-Gated Bilayer Graphene”, Phys. Rev. Lett. 121, 127703 (2018) |
Jinsong Xu, Simranjeet Singh, Jyoti Katoch, Guanzhong Wu, Tiancong Zhu, Igor Žutić, and Roland K. Kawakami, “Spin Inversion in Graphene Spin Valves by Gate-Tunable Magnetic Proximity Effect at One-Dimensional Contacts”, Nat. Commun. 9, 2869 (2018) |
Jyoti Katoch, Søren Ulstrup, Roland J. Koch, Simon Moser, Kathleen M. McCreary, Simranjeet Singh, Jinsong Xu, Berend T. Jonker, Roland K. Kawakami, Aaron Bostwick, Eli Rotenberg, and Chris Jozwiak, “Giant spin-splitting and gap renormalization driven by trions in single-layer WS2/h-BN heterostructures”, Nat. Phys. 14, 355-359 (2018) |
Yunqiu Kelly Luo^, Jinsong Xu^, Tiancong Zhu, Guanzhong Wu, Elizabeth J. McCormick, Wenbo Zhan, Mahesh R. Neupane, and Roland K. Kawakami, “Opto-Valleytronic Spin Injection in Monolayer MoS2/Few-Layer Graphene Hybrid Spin Valves”, Nano Lett. 17, 3877−3883 (2017) |
Robert E.A. Williams, Jinsong Xu, Amanda Hanks, Adam Ahmed, Igor V. Pinchuk, Dave McComb, Roland Kawakami, and Jyoti Katoch, “Focused Ion Beam Prepared Cross-Sectional Transmission Electron Microscopy Preparation On CaGe2 On Ge(111) Grown By Molecular Beam Epitaxy”, Microsc. Microanal. 23, 290 (2017) |
Jinsong Xu, Jyoti Katoch, Adam S. Ahmed, Igor V. Pinchuk, Justin R. Young, Ezekiel Johnston-Halperin, Jonathan Pelz, Roland K. Kawakami, “Growth of uniform CaGe2 films by alternating layer molecular beam epitaxy”, J. Cryst. Growth. 460, 134–138 (2017) |
Justin R. Young, Michael Chilcote, Matthew Barone, Jinsong Xu, Jyoti Katoch, Yunqiu Kelly Luo, Sara Mueller, Thaddeus J. Asel, Susan K. Fullerton-Shirey, Roland Kawakami, Jay A. Gupta, Leonard J. Brillson, and Ezekiel Johnston-Halperin, “Uniform large-area growth of nanotemplated high-quality monolayer MoS2”, Appl. Phys. Lett. 110, 263103 (2017) |
Simranjeet Singh, Jyoti Katoch, Jinsong Xu, Cheng Tan, Tiancong Zhu, Walid Amamou, James Hone, and Roland Kawakami, “Nanosecond spin relaxation times in single layer graphene spin valves with hexagonal boron nitride tunnel barriers”, Appl. Phys. Lett. 109, 122411 (2016) |
Søren Ulstrup,Jyoti Katoch, Roland J. Koch, Daniel Schwarz, Simranjeet Singh, Kathleen M. McCreary, Hyang Keun Yoo, Jinsong Xu, Berend T. Jonker, Roland K. Kawakami, Aaron Bostwick, Eli Rotenberg, and Chris Jozwiak, “Spatially Resolved Electronic Properties of Single-Layer WS2 on Transition Metal Oxides”, ACS Nano. 10, 10058−10067 (2016) |
Maxx Q. Arguilla, Jyoti Katoch, Kevin Krymowski, Nicholas D. Cultrara, Jinsong Xu, Xiaoxiang Xi, Amanda Hanks, Shishi Jiang, Richard D. Ross, Roland J. Koch, Søren Ulstrup, Aaron Bostwick, Chris Jozwiak, David W. McComb, Eli Rotenberg, Jie Shan, Wolfgang Windl, Roland K. Kawakami, and Joshua E. Goldberger, “NaSn2As2: An Exfoliatable Layered van der Waals Zintl Phase”, ACS Nano. 10, 9500−9508 (2016) |