TY - JOUR A1 - Kamionka, Thomas A1 - Martens, Michael A1 - Chou, Kang Wei A1 - Curcic, Michael A1 - Drews, André A1 - Schütz, Gisela A1 - Tyliszczak, Tolek A1 - Stoll, Hermann A1 - Van Waeyenberge, Bartel A1 - Meier, Guido T1 - Magnetic Antivortex-Core Reversal by Circular-Rotational Spin Currents JF - Physical Review Letters Y1 - 2010 U6 - https://doi.org/10.1103/PhysRevLett.105.137204 SN - 0031-9007 VL - 105 IS - 13 PB - American Physical Society ER - TY - JOUR A1 - Curcic, Michael A1 - Van Waeyenberge, Bartel A1 - Vansteenkiste, Arne A1 - Weigand, Markus A1 - Sackmann, Vitalij A1 - Stoll, Hermann A1 - Fähnle, Manfred A1 - Tyliszczak, Tolek A1 - Woltersdorf, Georg A1 - Back, Christian H. A1 - Schütz, Gisela T1 - Polarization Selective Magnetic Vortex Dynamics and Core Reversal in Rotating Magnetic Fields JF - Physical Review Letters Y1 - 2008 U6 - https://doi.org/10.1103/PhysRevLett.101.197204 SN - 0031-9007 VL - 101 IS - 19 PB - American Physical Society ER - TY - JOUR A1 - Vansteenkiste, A. A1 - De Baerdemaeker, J. A1 - Chou, Kang Wei A1 - Stoll, H. A1 - Curcic, Michael A1 - Tyliszczak, T. A1 - Woltersdorf, G. A1 - Back, Christian H. A1 - Schütz, G. A1 - Van Waeyenberge, B. T1 - Influence of domain wall pinning on the dynamic behavior of magnetic vortex structures: Time-resolved scanning x-ray transmission microscopy in NiFe thin film structures JF - Physical Review B Y1 - 2008 U6 - https://doi.org/10.1103/PhysRevB.77.144420 SN - 1098-0121 VL - 77 IS - 14 PB - American Physical Society ER - TY - JOUR A1 - Weigand, Markus A1 - Van Waeyenberge, Bartel A1 - Vansteenkiste, Arne A1 - Curcic, Michael A1 - Sackmann, Vitalij A1 - Stoll, Hermann A1 - Tyliszczak, Tolek A1 - Kaznatcheev, Konstantine A1 - Bertwistle, Drew A1 - Woltersdorf, Georg A1 - Back, Christian H. A1 - Schütz, Gisela T1 - Vortex Core Switching by Coherent Excitation with Single In-Plane Magnetic Field Pulses JF - Physical Review Letters Y1 - 2009 U6 - https://doi.org/10.1103/PhysRevLett.102.077201 SN - 0031-9007 VL - 102 IS - 7 PB - American Physical Society ER - TY - JOUR A1 - Vansteenkiste, A A1 - Weigand, M A1 - Curcic, Michael A1 - Stoll, H A1 - Schütz, G A1 - Van Waeyenberge, B T1 - Chiral symmetry breaking of magnetic vortices by sample roughness JF - New Journal of Physics Y1 - 2009 U6 - https://doi.org/10.1088/1367-2630/11/6/063006 SN - 1367-2630 VL - 11 IS - 6 PB - IOP Publishing ER - TY - JOUR A1 - Vansteenkiste, A. A1 - Chou, Kang Wei A1 - Weigand, M. A1 - Curcic, Michael A1 - Sackmann, V. A1 - Stoll, H. A1 - Tyliszczak, T. A1 - Woltersdorf, G. A1 - Back, Christian H. A1 - Schütz, G. A1 - Van Waeyenberge, B. T1 - X-ray imaging of the dynamic magnetic vortex core deformation JF - Nature Physics Y1 - 2009 U6 - https://doi.org/10.1038/nphys1231 SN - 1745-2473 VL - 5 IS - 5 SP - 332 EP - 334 PB - Nature Publishing Group ER - TY - JOUR A1 - Bisig, Andre A1 - Rhensius, Jan A1 - Kammerer, Matthias A1 - Curcic, Michael A1 - Stoll, Hermann A1 - Schütz, Gisela A1 - Van Waeyenberge, Bartel A1 - Chou, Kang Wei A1 - Tyliszczak, Tolek A1 - Heyderman, Laura J. A1 - Krzyk, Stephen A1 - von Bieren, Arndt A1 - Kläui, Mathias T1 - Direct imaging of current induced magnetic vortex gyration in an asymmetric potential well JF - Applied Physics Letters N2 - Employing time-resolved x-ray microscopy, we investigate the dynamics of a pinned magnetic vortex domain wall in a magnetic nanowire. The gyrotropic motion of the vortex core is imaged in response to an exciting ac current. The elliptical vortex core trajectory at resonance reveals asymmetries in the local potential well that are correlated with the pinning geometry. Using the analytical model of a two-dimensional harmonic oscillator, we determine the resonance frequency of the vortex core gyration and, from the eccentricity of the vortex core trajectory at resonance, we can deduce the stiffness of the local potential well. Y1 - 2010 U6 - https://doi.org/10.1063/1.3373590 SN - 0003-6951 VL - 96 IS - 15 PB - AIP Publishing ER - TY - JOUR A1 - Kammerer, Matthias A1 - Weigand, Markus A1 - Curcic, Michael A1 - Noske, Matthias A1 - Sproll, Markus A1 - Vansteenkiste, Arne A1 - Van Waeyenberge, Bartel A1 - Stoll, Hermann A1 - Woltersdorf, Georg A1 - Back, Christian H. A1 - Schuetz, Gisela T1 - Magnetic vortex core reversal by excitation of spin waves JF - Nature Communications Y1 - 2011 U6 - https://doi.org/10.1038/ncomms1277 SN - 2041-1723 VL - 2 IS - 1 PB - Springer Nature ER - TY - JOUR A1 - Curcic, Michael A1 - Stoll, Hermann A1 - Weigand, Markus A1 - Sackmann, Vitalij A1 - Juellig, Patrick A1 - Kammerer, Matthias A1 - Noske, Matthias A1 - Sproll, Markus A1 - Van Waeyenberge, Bartel A1 - Vansteenkiste, Arne A1 - Woltersdorf, Georg A1 - Tyliszczak, Tolek A1 - Schütz, Gisela T1 - Magnetic vortex core reversal by rotating magnetic fields generated on micrometer length scales JF - physica status solidi (b) N2 - AbstractUnidirectional switching of the magnetic vortex core can be achieved in micron‐sized ferromagnetic platelets by excitation of the gyrotropic mode of the vortex structure with in‐plane rotating magnetic fields. Circulating fields with a switchable sense of rotation (clockwise, CW or counter clockwise, CCW) have been generated on a micrometer length scale at frequencies up to 1 GHz by two orthogonal electric RF currents with 90° phase shift flowing through crossed but not isolated striplines. Decoupling of these currents is realized by balanced symmetric RF sources. The amplitudes of the rotating magnetic fields and their spatial distributions are calculated and the stripline geometry is discussed. By taking advantage of this technique, unidirectional vortex core reversal by excitation with CW or CCW rotating magnetic fields has been observed by time resolved scanning transmission X‐ray microscopy. An area with reversed magnetization, the “dip,” was observed near the vortex core before vortex core reversal. Y1 - 2011 U6 - https://doi.org/10.1002/pssb.201147208 SN - 0370-1972 N1 - Acknowledgements Cooperation and many fruitful discussions with Manfred Fähnle are gratefully acknowledged. The use of the STXM (beamline 11.0.2) at the Advanced Light Source, Berkeley, was supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences, and Engineering Division, US Department of Energy. VL - 248 IS - 10 SP - 2317 EP - 2322 PB - Wiley ER - TY - CHAP A1 - Willers, Oliver A1 - Curcic, Michael A1 - Bosch, Robert ED - Thomas, Otto T1 - Fingerprinting MEMS Gyroscopes T2 - 11th Smart Systems Integration Conference 2017 International Conference and Exhibition on Integration Issues of Miniaturized Systems Cork, Ireland 8-9 March 2017 Y1 - 2017 SN - 978-1-5108-4478-0 PB - Curran Associates, Inc. ER - TY - CHAP A1 - Nabholz, Ulrike A1 - Curcic, Michael A1 - Mehner, Jan E. A1 - Degenfeld-Schonburg, Peter T1 - Nonlinear Dynamical System Model for Drive Mode Amplitude Instabilities in MEMS Gyroscopes T2 - 2019 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL), Naples, 01-05 April 2019 Y1 - 2019 SN - 978-1-5386-7828-2 U6 - https://doi.org/10.1109/ISISS.2019.8739703 PB - IEEE ER - TY - JOUR A1 - Bisig, André A1 - Akosa, Collins Ashu A1 - Moon, Jung-Hwan A1 - Rhensius, Jan A1 - Moutafis, Christoforos A1 - von Bieren, Arndt A1 - Heidler, Jakoba A1 - Kiliani, Gillian A1 - Kammerer, Matthias A1 - Curcic, Michael A1 - Weigand, Markus A1 - Tyliszczak, Tolek A1 - Van Waeyenberge, Bartel A1 - Stoll, Hermann A1 - Schütz, Gisela A1 - Lee, Kyung-Jin A1 - Manchon, Aurelien A1 - Kläui, Mathias T1 - Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect JF - Physical Review Letters Y1 - 2016 U6 - https://doi.org/10.1103/PhysRevLett.117.277203 SN - 0031-9007 N1 - The accepted manuscript is available via CHORUS: https://link.aps.org/accepted/10.1103/PhysRevLett.117.277203 VL - 117 IS - 27 PB - American Physical Society ER -