Topological magnetic solitons

1. 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).

Nature News/Views: Magnetic hopfion rings in new era for topology.

2. Zheng, F.*, Kiselev, N. S.*, Yang, L., Kuchkin, V. M., 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).

Nature Physics News/Views: Magnetic skyrmions unwrapped.

3. 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).

4. 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).

5. 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).

Electrical charges

1. 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).

2. 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).

3. 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).

4. 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).

5. Zheng, F.*, Migunov, V., Caron, J., 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).