• 2025

    • 46. Liu, W., Yang, J., Zheng, F., Yang, J.*, Hou, Y.*, Wu, R.*. Nonvolatile manipulation of topological spin textures in 2D spin frustrated multiferroic heterostructures. Advanced Functional Materials in press (2025).

      45. Liu, Y., Zhang, J., Liu, Y., Dan, J., Wang, L., Liu, W.*, Zhang, L., Zheng, F., Du, H.*, Ge, B.*, Zhao, J-Z.*, Song, D.* Modifying the Dzyaloshinskii-Moriya interaction via disruption of ordered intercalation in a van der Waals magnet. Nano Letters 25 (11), 4621-4627 (2025).

  • 2024

    • 44. Liu, W., He, X., Zhang, J., Zheng, F., Zhao, Y., Wu, R.*, Yang, J., Kläui, M., Hou, Y.* Two-dimensional rare-earth-based half-metals with topological bimerons. Nano Letters 24 (48), 15473-15480 (2024).

      43. Pradhan, S., Liu, Y., Zheng, F., Song, D., Wu, R.* Observation of Néel-type magnetic skyrmion in a layered non-centrosymmetric itinerant ferromagnet CrTe1.38Applied Physics Letters 125, 152402 (2024).

      42. Lyu, B., Zhao, S., Zhang, Y., Wang, W., Zheng, F.*, Dunin-Borkowski, R. E., Zang, J.*, Du, H.* Three-dimensional magnetization reconstruction from electron optical phase images with physical constraints. Science China Physics, Mechanics & Astronomy 67 (11), 117511 (2024).

      41. Yang, L., Savenchko, A. S.*, Zheng, F.*, Kiselev, N. S.*, Rybakov, F. N., Han, X., Blügel, S., Dunin-Borkowski, R. E. Embedded skyrmion bags in thin films of chiral magnets. Advanced Materials 36 (36), 2403274 (2024).

      40. Song, D.*, Wang, W., Zhang, S., Liu, Y., Wang, N., Zheng, F., Tian, M., Dunin-Borkowski, R. E., Zang, J.*, Du, H.* Steady motion of 80-nm-size skyrmions in a 100-nm-wide track. Nature Communications 15, 5614 (2024).

      39. Ji, K., Schnedler, M., Lan, Q., Zheng, F., Wang, Y., Lu, Y., Eisele, H., Carlin, J.-F., Butte, R., Grandjean, N., Dunin-Borkowski, R. E., Ebert, Ph. Identification and thermal healing of focused ion beam-induced defects in GaN using off-axis electron holography. Applied Physics Express 17, 016505 (2024).

      38. Yang, T-Y., Gu, S-W., Zhang, Y-X., Zheng, F., Kong, D., Dunin-Borkowski, R. E., Wu, D., Ge, Z-H.*, Feng, J.*, Jin, L.* Pseudopolymorphic phase engineering for improved thermoelectric performance in copper sulfides. Advanced Materials 36 (7), 2308353 (2024).

  • 2023

    • 37. Zheng, F.*, Kiselev, N. S.*, Rybakov, F. N.*, Yang, L., Wen, S., Blügel, S., Dunin-Borkowski, R. E. Hopfion rings in a cubic chiral magnet. Nature 623, 718-723 (2023). 

      36. Kong, D., Kovacs, A.*, Charilaou, M., Zheng, F., Wang, L., Han, X.*, Dunin-Borkowski, R. E. Direct observation of tensile-strain-induced nanoscale magnetic hardening. Nature Communications 14, 3963 (2023).

      35. Zheng, F.*, Migunov, V., Caron, J., Du, H., Pozzi, G., Dunin-Borkowski, R. E. Nanoscale three-dimensional charge density and electric field mapping by electron holographic tomography. Nano Letters 23 (3), 843-849 (2023).

      34. Li, L., Song, D.*, Wang, W.*Zheng, F., Kovacs, A., Tian, M., Dunin-Borkowski, R. E., Du, H.* Transformation from magnetic soliton to skyrmion in a monaxial chiral magnet. Advanced Materials 35 (16), 2209798 (2023).

  • 2022

    • 33. Lu, Y.*, Zheng, F.*, Lan, Q., Schnedler, M.*, Ebert, Ph., Dunin-Borkowski, R. E. Counting point defects at nanoparticle surfaces by electron holography. Nano Letters 22 (17), 6936-6941 (2022).

      32. Zheng, F.*, Kiselev, N. S.*, Yang, L., Kuchkin, V., Rybakov, F. N., Blügel, S., Dunin-Borkowski, R. E. Skyrmion–antiskyrmion pair creation and annihilation in a cubic chiral magnet. Nature Physics 18, 863-868 (2022).

      31. Zheng, F.*, Beleggia, M., Migunov, V., Giulio, P., Dunin-Borkowski, R. E. Electron-beam-induced charging of an Al2O3 nanotip studied using off-axis electron holography. Ultramicroscopy 241, 113593 (2022).

      30. Zhang, F., Qi, X., He, M., Zheng, F., Jin, L. *, Peng, Z., Chao, X., Yang, Z., Wu, D. * Contrasting roles of Bi-doping and Bi2Te3 alloying on the thermoelectric performance of SnTe. Inorganic Chemistry Frontiers 9, 5562 (2022).

      29. Savchenko, A. S.*, Zheng, F.*, Kiselev, N. S.*, Yang, L., Rybakov, F. N, Blügel, S., Dunin-Borkowski, R. E. Diversity of states in a chiral magnet nanocylinder. APL Materials 10, 061110 (2022).

      28. Song, D.*, Zheng, F., Dunin-Borkowski, R. E. Prospect for measuring two-dimensional van der Waals magnets by electron magnetic chiral dichroism. Ultramicroscopy 234, 113476 (2022).

      27. Ge, Z-H., Li, W-J., Feng, J., Zheng, F., Jia, C-L., Wu, D.*, Jin, L.* Atomic-scale observation of off-centering rattlers in filled skutterudites. Advanced Energy Materials 12, 2103770 (2022).

  • 2021

    • 26. Zheng, F.*, Rybakov, F. N.*, Kiselev, N. S.*, Song, D., Kovacs, A., Du, H., Blügel, S., Dunin-Borkowski, R. E. Magnetic skyrmion braids. Nature Communications 12, 5136 (2021).

      25. Gu, W-H., Zhang, X-Y., Guo, J., Cai, J-F., Zhu, Y-K., Zheng, F., Jin, L.*, Xu, J., Feng, J., Ge, Z-H.* Realizing high thermoelectric performance in n-type SnSe polycrystals via (Pb, Br) co-doping and multi-nanoprecipitates synergy. Journal of Alloys and Compounds 864, 158401 (2021).

  • 2020

    • 24. Zheng, F.*, Kovacs, A.*, Denneulin, T., Caron, J., Weßel, T., Dunin-Borkowski, R. E. Magnetic field mapping using off-axis electron holography in the transmission electron microscope. Journal of Visualized Experiments 166, e61907 (2020).

      23. Zheng, F.*,  Caron, J., Migunov, V., Beleggia, M., Pozzi, G., Dunin-Borkowski, R. E. Measurement of charge density in nanoscale materials using off-axis electron holography. Journal of Electron Spectroscopy and Related Phenomena 241, 146881 (2020).

      22. Zheng, F.*, Pozzi, G., Migunov, V., Pirker, L., Remskar, M., Beleggia, M., Dunin-Borkowski, R. E. Quantitative measurement of charge accumulation along a quasi-one-dimensional W5O14 nanowire during electron field emission. Nanoscale 12, 10559-10564 (2020).

      21. Wang, Y., Schnedler, M.*, Lan, Q., Zheng, F., Freter, L., Lu, Y., Breuer, U., Eisele, H., Carlin, L. -F., Butte, R., Grandjean, N., Dunin-Borkowski, R. E., Ebert, Ph.* Interplay of anomalous strain relaxation and minimization of polarization changes at nitride semiconductor heterointerfaces. Physical Review B 102, 245304 (2020).

      20. Song, D., Wang, L., Wang, W., Zheng, F., Tang, J., Wang, S., Zhu, C., Caron, J., Kovacs, A., Liu, Z., Mandrus, D., Tian, M., Du, H.*, Dunin-Borkowski, R. E. Robust nature of the chiral spin helix in CrNb3S6 nanostructures studied by off-axis electron holography. Physical Review B 102, 064432 (2020).

      19. Guo, J., Zhang, Y-X., Wang, Z-Y., Zheng, F., Ge, Z-H.*, Fu, J.*, Feng, J.* High thermoelectric properties realized in earth-abundant Bi2S3 bulk via carrier modulation and multi-nano-precipitates synergy. Nano Energy 78, 105227 (2020).

  • 2019

    • 18. Jiang, J., Sun, X., Chen, X., Wang, B., Chen, Z., Hu, Y., Guo, Y., Zhang, L., Ma, Y., Gao, L.*, Zheng, F., Jin, L., Chen, M., Ma, Z., Zhou, Y., Padture, N. P., Beach, K., Terrones, H., Shi, Y., Gall, D., Lu, T-M., Wertz, E., Feng, J.*, Shi, J.* Carrier lifetime enhancement in halide perovskite via remote epitaxy. Nature Communications 10, 4145 (2019).

      17. Wu, D., Chen, X., Zheng, F.*, Du, H., Jin, L.*, Dunin-Borkowski, R. E. Dislocation evolution and migration at grain boundaries in thermoelectric SnTe. ACS Applied Energy Materials 2, 2392-2397 (2019).

      16. Wang, L-M.*, Qdemat, A., Petracic, O., Kentzinger, E., Rücker, U., Zheng, F., Lu, P-H., Wei, X-K., Dunin-Borkowski, R. E., Brückel, T. Manipulation of dipolar magnetism in low-dimensional iron oxide nanoparticle assemblies. Physical Chemistry Chemical Physics 21, 6171-6177 (2019).

  • 2018

    • 15. Zheng, F., Rybakov, F. N., Borisov, A. B., Song, D., Wang, S., Li, Z-A., Du, H.*, Kiselev, N. S.*, Caron, J., Kovacs, A., Tian, M., Zhang, Y., Blügel, S., Dunin-Borkowski, R. E. Experimental observation of chiral magnetic bobbers in B20-type FeGe. Nature Nanotechnology 13, 451-455 (2018).

      14. Singh, G.*, Bucker, R., Kassier, G., Barthelmess, M., Zheng, F., Migunov, V., Kruth, M., Dunin-Borkowski, R. E., Purcell, S. T., Dwayne Miller, R. J. Fabrication and characterization of a focused ion beam milled lanthanum hexaboride based cold field electron emitter source. Applied Physics Letters 113, 093101 (2018).

      13. Ge, Z-H.*, Zhang, Y-X., Song, D., Chong, X., Qin, P., Zheng, F., Feng, J.*, Zhao, L-D.* Excellent ZT achieved in Cu1.8S thermoelectric alloys through introducing rare-earth trichlorides. Journal of Materials Chemistry A 6 (29), 14440-14448 (2018).

      12. Zhang, Y-X., Ma, Z., Ge, Z-H.*, Qin, P., Zheng, F., Feng, J. Highly enhanced thermoelectric properties of Cu1.8S by introducing PbS. Journal of Alloys and Compounds 764, 738-744 (2018).

  • 2017

    • 11. Zheng, F., Li, H., Wang, S., Song, D., Jin, C., Wei, W., Kovacs, A., Zang, J.*, Tian, M., Zhang, Y., Du, H.*, Dunin-Borkowski, R. E. Direct imaging of a zero-field target skyrmion and its polarity switch in a chiral magnetic nanodisk. Physical Review Letters 119, 197205 (2017).

      10. Ge, Z-H., Song, D., Chong, X., Zheng, F.*, Jin, L., Chang, C., Dunin-Borkowski, R. E., Qin, P., Feng, J.*, Zhao, L-D.* Boosting the thermoelectric performance of (Na, K) co-doped polycrystalline SnSe by synergistic tailoring of the band structure and atomic-scale defect phonon scattering. Journal of the American Chemical Society 139 (28), 9714-9720 (2017).

      9. Li, Z-A.*, Zheng, F., Tavabi, A., Caron, J., Jin, C., Du, H., Kovacs, A., Tian, M., Farle, M., Dunin-Borkowski, R. E. Magnetic skyrmion formation at lattice defects and grain boundaries studied by quantitative off-axis electron holography. Nano Letters 17 (3), 1395-1401 (2017).

      8. Jin, C., Li, Z-A.*, Kovacs, A., Caron, J., Zheng, F., Rybakov, F. N., Kiselev, N. S.*, Du, H.*, Blügel, S., Tian, M., Zhang, Y., Farle, M., Dunin-Borkowski, R. E. Control of morphology and formation of highly geometrically confined magnetic skyrmions. Nature Communications 8, 15569 (2017).

  • 2016

    • 7. Wu, D., Zhao, L-D., Zheng, F., Jin, L., Kanatzidis, M. G., He, J.* Understanding nanostructuring processes in thermoelectrics and their effects on lattice thermal conductivity. Advanced Materials 28 (14), 2737-2743 (2016).

      6. Feng, D., Zheng, F., Wu, D., Wu, M., Li, W., Huang, L., Zhao, L-D., He, J.* Investigation into the extremely low thermal conductivity in Ba heavily doped BiCuSeO. Nano Energy 27, 167-174 (2016).

  • 2015

    • 5. Wu, H., Zheng, F., Wu, D., Ge, Z-H., Liu, X., He, J.* Advanced electron microscopy for thermoelectric materials. Nano Energy 13, 626-650 (2015).

  • 2014

    • 4. Wu, D., Zhao, L-D., Hao, S., Jiang, Q., Zheng, F., Doak, J. W., Wu, H., Chi, W., Gelbstein, Y., Uher, C., Wolverton, C., Kanatzidis, M. G., He, J.* Origin of the high performance in GeTe-based thermoelectric materials upon Bi2Te3 doping. Journal of the American Chemical Society 136 (32), 11412-11419 (2014).

      3. Pei, Y-L., Wu, H., Wu, D., Zheng, F., He, J.* High thermoelectric performance realized in a BiCuSeO system by improving carrier mobility through 3D modulation doping. Journal of the American Chemical Society 136 (39), 13902-13908 (2014).

      2. Wu, H., Zhao, L-D., Zheng, F., Wu, D., Pei, Y-L., Tong, X., Kanatzidis, M. G.*, He, J.* Broad temperature plateau for thermoelectric figure of merit ZT>2 in phase-separated PbTe0.7S0.3Nature Communications 5, 5155 (2014).

      1. Zheng, F., Logvenov, G., Bozovic, I., Zhu, Y.*, He, J.* Structural origin of enhanced critical temperature in ultrafine multilayers of cuprate superconducting films. Physical Review B 89, 184509 (2014).