HomeResearch— IRG-1 Publications

— IRG-1 Publications

Mechanisms, Materials, Devices for Spin Manipulation

(acknowledging DMR-1719875, through May 2021)

  1. X. Zhang, E. Padgett, L. Zhu, R. Buhrman, and D. Muller, “A Robust Basis for Grain Identification in Polycrystalline Thin Film Devices Using Cepstrum Transforms of 4D-STEM Diffraction Pattern,” Microsc Microanal 26, 1620–1622 (2020). http://dx.doi.org/10.1017/S1431927620018759
  2. B. T. Schaefer, L. Wang, A. Jarjour, K. Watanabe, T. Taniguchi, P. L. McEuen, and K. C. Nowack, “Magnetic field detection limits for ultraclean graphene Hall sensors,” Nature Commun. 11, 4163 (2020). http://dx.doi.org/10.1038/s41467-020-18007-5
  3. A. Bose, J. N. Nelson, X. S. Zhang, P. Jadaun, R. Jain, D. G. Schlom, D. C. Ralph, D. A. Muller, K. M. Shen, and R. A. Buhrman, “Effects of Anisotropic Strain on Spin–Orbit Torque Produced by the Dirac Nodal Line Semimetal IrO2,” ACS Appl. Mater. Interfaces 12, 55411–55416 (2020). http://dx.doi.org/https://doi.org/10.1021/acsami.0c16485
  4. L. Zhu, L. Zhu, and R. A. Buhrman, “Fully Spin-Transparent Magnetic Interfaces Enabled by the Insertion of a Thin Paramagnetic NiO Layer,” Phys. Rev. Lett. 126, 107204/1–7 (2021). http://dx.doi.org/10.1103/PhysRevLett.126.107204
  5. L. Zhu and R. A. Buhrman, “Absence of Significant Spin-Current Generation in Ti / Fe − Co − B Bilayers with Strong Interfacial Spin-Orbit Coupling,” Phys. Rev. Applied 15, L031001/1-6 (2021). http://dx.doi.org/10.1103/PhysRevApplied.15.L031001
  6. Z. Chen, T. Xu, G. Fuchs, W. Jiang, and D. Muller, “Determining the Chirality of Néel-type Magnetic Skyrmions by Phase Retrieval with Four-dimensional Lorentz Scanning Transmission Electron Microscopy,” Microsc Microanal 26, 2136–2137 (2020). http://dx.doi.org/10.1017/S1431927620020565
  7. Y. Wang, J. Balgley, E. Gerber, M. Gray, N. Kumar, X. Lu, J.-Q. Yan, A. Fereidouni, R. Basnet, S. J. Yun, D. Suri, H. Kitadai, T. Taniguchi, K. Watanabe, X. Ling, J. Moodera, Y. H. Lee, H. O. H. Churchill, J. Hu, L. Yang, E.-A. Kim, D. G. Mandrus, E. A. Henriksen, and K. S. Burch, “Modulation Doping via a Two-Dimensional Atomic Crystalline Acceptor,” Nano Lett. 20, 8446–8452 (2020). http://dx.doi.org/10.1021/acs.nanolett.0c03493
  8. A. Ray, Y.-T. Shao, Y. Xu, N. Sivadas, T. Li, Z. Wang, K. F. Mak, J. Shan, C. Fennie, and D. Muller, “Mapping Stacking and Stacking Defects in the 2D Ferromagnet CrI3,” Microsc Microanal 26, 636–638 (2020). http://dx.doi.org/10.1017/S1431927620015366
  9. X.-X. Zhang, L. Li, D. Weber, J. Goldberger, K. F. Mak, and J. Shan, “Gate-tunable spin waves in antiferromagnetic atomic bilayers,” Nature Mater. 19, 838–842 (2020). http://dx.doi.org/10.1038/s41563-020-0713-9
  10. C. Jin, Z. Tao, K. Kang, K. Watanabe, T. Taniguchi, K. F. Mak, and J. Shan, “Imaging and control of critical fluctuations in two-dimensional magnets,” Nature Mater. 19, 1290–1294 (2020). http://dx.doi.org/10.1038/s41563-020-0706-8
  11. V. Gupta, T. M. Cham, G. M. Stiehl, A. Bose, J. A. Mittelstaedt, K. Kang, S. Jiang, K. F. Mak, J. Shan, R. A. Buhrman, and D. C. Ralph, “Manipulation of the van der Waals Magnet Cr2Ge2Te6 by Spin–Orbit Torques,” Nano Lett. 7482–7488 (2020). http://dx.doi.org/10.1021/acs.nanolett.0c02965
  12. A. M. Park, Z. Chen, X. S. Zhang, L. Zhu, D. A. Muller, and G. D. Fuchs, “Operando control of skyrmion density in a Lorentz transmission electron microscope with current pulses,” Journal of Applied Physics 128, 233902 (2020). http://dx.doi.org/10.1063/5.0020373
  13. L. Zhu, X. S. Zhang, D. A. Muller, D. C. Ralph, and R. A. Buhrman, “Observation of Strong Bulk Damping‐Like Spin‐Orbit Torque in Chemically Disordered Ferromagnetic Single Layers,” Adv. Funct. Mater. 2005201 (2020). http://dx.doi.org/10.1002/adfm.202005201
  14. L. Zhu, D. C. Ralph, and R. A. Buhrman, “Lack of Simple Correlation between Switching Current Density and Spin-Orbit-Torque Efficiency of Perpendicularly Magnetized Spin-Current-Generator–Ferromagnet Heterostructures,” Phys. Rev. Applied 15, 024059/1–8 (2021). http://dx.doi.org/10.1103/PhysRevApplied.15.024059
  15. A. B. Mei, I. Gray, Y. Tang, J. Schubert, D. Werder, J. Bartell, D. C. Ralph, G. D. Fuchs, and D. G. Schlom, “Local Photothermal Control of Phase Transitions for On-Demand Room-Temperature Rewritable Magnetic Patterning,” Adv. Mater. 32, 2001080 (2020). http://dx.doi.org/https://doi.org/10.1002/adma.202001080
  16. L. Li, S. Jiang, Z. Wang, K. Watanabe, T. Taniguchi, J. Shan, and K. F. Mak, “Electrical switching of valley polarization in monolayer semiconductors,” Phys. Rev. Materials 4, 104005 (2020). http://dx.doi.org/10.1103/PhysRevMaterials.4.104005
  17. S. Jiang, H. Xie, J. Shan, and K. F. Mak, “Exchange magnetostriction in two-dimensional antiferromagnets,” Nature Mater. 1–13 (2020). http://dx.doi.org/10.1038/s41563-020-0712-x
  18. L. Zhu and R. A. Buhrman, “Maximizing Spin-Orbit-Torque Efficiency of Pt / Ti Multilayers: Trade-Off Between Intrinsic Spin Hall Conductivity and Carrier Lifetime,” Phys. Rev. Applied 12, 051002/1–6 (2019). http://dx.doi.org/10.1103/PhysRevApplied.12.051002
  19. G. M. Stiehl, R. Li, V. Gupta, I. E. Baggari, S. Jiang, H. Xie, L. F. Kourkoutis, K. F. Mak, J. Shan, R. A. Buhrman, and D. C. Ralph, “Layer-dependent spin-orbit torques generated by the centrosymmetric transition metal dichalcogenide β − MoTe2,” Phys. Rev. B 100, 184402 (2019). http://dx.doi.org/10.1103/PhysRevB.100.184402
  20. L. Zhu, L. Zhu, D. C. Ralph, and R. A. Buhrman, “Origin of Strong Two-Magnon Scattering in Heavy-Metal/Ferromagnet/Oxide Heterostructures,” Phys. Rev. Applied 13, 034038 (2020). http://dx.doi.org/10.1103/PhysRevApplied.13.034038
  21. L. Zhu, L. Zhu, S. Shi, D. C. Ralph, and R. A. Buhrman, “Energy‐Efficient Ultrafast SOT‐MRAMs Based on Low‐Resistivity Spin Hall Metal Au0.25Pt0.75,” Adv. Electron. Mater. 6, 1901131/1–7 (2020). http://dx.doi.org/10.1002/aelm.201901131
  22. L. Zhu, D. C. Ralph, and R. A. Buhrman, “Effective Spin-Mixing Conductance of Heavy-Metal–Ferromagnet Interfaces,” Phys. Rev. Lett. 123, 057203/1–7 (2019). http://dx.doi.org/10.1103/PhysRevLett.123.057203
  23. L. Zhu, L. Zhu, M. Sui, D. C. Ralph, and R. A. Buhrman, “Variation of the giant intrinsic spin Hall conductivity of Pt with carrier lifetime,” Sci. Adv. 5, 1–9 (2019). http://dx.doi.org/10.1126/sciadv.aav8025
  24. L. Zhu, L. Zhu, S. Shi, Sui, Manling, D. C. Ralph, and R. A. Buhrman, “Enhancing Spin-Orbit Torque by Strong Interfacial Scattering From Ultrathin Insertion Layers,” Phys. Rev. Applied 11, 061004/1–5 (2019). http://dx.doi.org/10.1103/PhysRevApplied.11.061004
  25. M. D. Bachmann, G. M. Ferguson, F. Theuss, T. Meng, C. Putzke, T. Helm, K. R. Shirer, Y.-S. Li, K. A. Modic, M. Nicklas, M. König, D. Low, S. Ghosh, A. P. Mackenzie, F. Arnold, E. Hassinger, R. D. McDonald, L. E. Winter, E. D. Bauer, F. Ronning, B. J. Ramshaw, K. C. Nowack, and
  26. P. J. W. Moll, “Spatial control of heavy-fermion superconductivity in CeIrIn5,” Science 366, 221–226 (2019). http://dx.doi.org/10.1126/science.aao6640
  27. E. Gerber, Y. Yao, T. A. Arias, and E.-A. Kim, “Ab Initio Mismatched Interface Theory of Graphene on α − RuCl3: Doping and Magnetism,” Phys. Rev. Lett. 124, 106804/1–5 (2020). http://dx.doi.org/10.1103/PhysRevLett.124.106804T. Li, S. Jiang, N. Sivadas, Z. Wang, Y. Xu, D.
  28. Weber, J. E. Goldberger, K. Watanabe, T. Taniguchi, C. J. Fennie, K. Fai Mak, and J. Shan, “Pressure-controlled interlayer magnetism in atomically thin CrI3,” Nature Mater. 18, 1303–1308 (2019). http://dx.doi.org/10.1038/s41563-019-0506-1
  29. K. F. Mak, J. Shan, and D. C. Ralph, “Probing and controlling magnetic states in 2D layered magnetic materials,” Nature Rev Phys. 1, 646–661 (2019). http://dx.doi.org/10.1038/s42254-019-0110-y
  30. I. Gray, T. Moriyama, N. Sivadas, G. M. Stiehl, J. T. Heron, R. Need, B. J. Kirby, D. H. Low, K. C. Nowack, D. G. Schlom, D. C. Ralph, T. Ono, and G. D. Fuchs, “Spin Seebeck Imaging of Spin-Torque Switching in Antiferromagnetic Pt / NiO Heterostructures,” Phys. Rev. X 9, 041016/1–10 (2019). http://dx.doi.org/10.1103/PhysRevX.9.041016
  31. I. Gray, G. M. Stiehl, J. T. Heron, A. B. Mei, D. G. Schlom, R. Ramesh, D. C. Ralph, and G. D. Fuchs, “Imaging uncompensated moments and exchange-biased emergent ferromagnetism in FeRh thin films,” Phys. Rev. Materials 3, 124407/1–15 (2019). http://dx.doi.org/10.1103/PhysRevMaterials.3.124407
  32. G. M. Stiehl, D. MacNeill, N. Sivadas, I. El Baggari, M. H. D. Guimarães, N. D. Reynolds, L. F. Kourkoutis, C. J. Fennie, R. A. Buhrman, and D. C. Ralph, “Current-Induced Torques with Dresselhaus Symmetry Due to Resistance Anisotropy in 2D Materials,” ACS Nano 13, 2599–2605 (2019). http://dx.doi.org/10.1021/acsnano.8b09663
  33. E. Turgut, H. Paik, K. Nguyen, D. A. Muller, D. G. Schlom, and G. D. Fuchs, “Engineering Dzyaloshinskii-Moriya interaction in B20 thin-film chiral magnets,” Phys. Rev. Materials 2, 074404/1–8 (2018). http://dx.doi.org/10.1103/PhysRevMaterials.2.074404
  34. Y. Ou, Z. Wang, C. S. Chang, H. P. Nair, H. Paik, N. Reynolds, D. C. Ralph, D. A. Muller, D. G. Schlom, and R. A. Buhrman, “Exceptionally High, Strongly Temperature Dependent, Spin Hall Conductivity of SrRuO3,” Nano Lett. published online (2019). http://dx.doi.org/10.1021/acs.nanolett.9b00729
  35. L. Zhu, K. Sobotkiewich, X. Ma, X. Li, D. C. Ralph, and R. A. Buhrman, “Strong Damping-Like Spin-Orbit Torque and Tunable Dzyaloshinskii-Moriya Interaction Generated by Low-Resistivity Pd1−x Ptx Alloys,” Advanced Functional Materials 1805822/1–8 (2019). http://dx.doi.org/10.1002/adfm.201805822
  36. L. Zhu, D. C. Ralph, and R. A. Buhrman, “Spin-Orbit Torques in Heavy-Metal–Ferromagnet Bilayers with Varying Strengths of Interfacial Spin-Orbit Coupling,” Phys. Rev. Lett. 122, 077201/1–6 (2019). http://dx.doi.org/10.1103/PhysRevLett.122.077201
  37. L. J. Zhu, D. C. Ralph, and R. A. Buhrman, “Irrelevance of magnetic proximity effect to spin-orbit torques in heavy-metal/ferromagnet bilayers,” Phys. Rev. B 98, 134406/1–5 (2018). http://dx.doi.org/10.1103/PhysRevB.98.134406
  38. S. Jiang, L. Li, Z. Wang, J. Shan, and K. F. Mak, “Spin tunnel field-effect transistors based on two-dimensional van der Waals heterostructures,” Nature Electronics 2, 159–163 (2019). http://dx.doi.org/10.1038/s41928-019-0232-3
  39. R. Yan, G. Khalsa, B. T. Schaefer, A. Jarjour, S. Rouvimov, K. C. Nowack, H. G. Xing, and D. Jena, “Thickness dependence of superconductivity in ultrathin NbS2,” Applied Physics Express 12, 023008/1–5 (2019). http://dx.doi.org/10.7567/1882-0786/aaff89
  40. Y.-T. Hsu, K. Park, and E.-A. Kim, “Hybridization-induced interface states in a topological-insulator–ferromagnetic-metal heterostructure,” Phys. Rev. B 96, 235433/1–5 (2017). http://dx.doi.org/10.1103/PhysRevB.96.235433
  41. J. L. Grab, A. E. Rugar, and D. C. Ralph, “Creation of localized skyrmion bubbles in Co/Pt bilayers using a spin-valve nanopillar,” Phys. Rev. B 97, 184424/1–9 (2018). http://dx.doi.org/10.1103/PhysRevB.97.184424
  42. M. H. D. Guimarães, G. M. Stiehl, D. MacNeill, N. D. Reynolds, and D. C. Ralph, “Spin–Orbit Torques in NbSe2/Permalloy Bilayers,” Nano Lett. 18, 1311–1316 (2018). http://dx.doi.org/10.1021/acs.nanolett.7b04993M.-H. Nguyen, S. Shi, G. E. Rowlands, S. V. Aradhya, C. L. Jermain,
  43. D. C. Ralph, and R. A. Buhrman, “Efficient switching of 3-terminal magnetic tunnel junctions by the giant spin Hall effect of Pt85Hf15 alloy,” Appl. Phys. Lett. 112, 062404/1–6 (2018). http://dx.doi.org/10.1063/1.5021077
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