@article{CurcicVanWaeyenbergeVansteenkisteetal.2008, author = {Curcic, Michael and Van Waeyenberge, Bartel and Vansteenkiste, Arne and Weigand, Markus and Sackmann, Vitalij and Stoll, Hermann and F{\"a}hnle, Manfred and Tyliszczak, Tolek and Woltersdorf, Georg and Back, Christian H. and Sch{\"u}tz, Gisela}, title = {Polarization Selective Magnetic Vortex Dynamics and Core Reversal in Rotating Magnetic Fields}, series = {Physical Review Letters}, volume = {101}, journal = {Physical Review Letters}, number = {19}, publisher = {American Physical Society}, issn = {0031-9007}, doi = {10.1103/PhysRevLett.101.197204}, year = {2008}, language = {en} } @article{WeigandVanWaeyenbergeVansteenkisteetal.2009, author = {Weigand, Markus and Van Waeyenberge, Bartel and Vansteenkiste, Arne and Curcic, Michael and Sackmann, Vitalij and Stoll, Hermann and Tyliszczak, Tolek and Kaznatcheev, Konstantine and Bertwistle, Drew and Woltersdorf, Georg and Back, Christian H. and Sch{\"u}tz, Gisela}, title = {Vortex Core Switching by Coherent Excitation with Single In-Plane Magnetic Field Pulses}, series = {Physical Review Letters}, volume = {102}, journal = {Physical Review Letters}, number = {7}, publisher = {American Physical Society}, issn = {0031-9007}, doi = {10.1103/PhysRevLett.102.077201}, year = {2009}, language = {en} } @article{KamionkaMartensChouetal.2010, author = {Kamionka, Thomas and Martens, Michael and Chou, Kang Wei and Curcic, Michael and Drews, Andr{\´e} and Sch{\"u}tz, Gisela and Tyliszczak, Tolek and Stoll, Hermann and Van Waeyenberge, Bartel and Meier, Guido}, title = {Magnetic Antivortex-Core Reversal by Circular-Rotational Spin Currents}, series = {Physical Review Letters}, volume = {105}, journal = {Physical Review Letters}, number = {13}, publisher = {American Physical Society}, issn = {0031-9007}, doi = {10.1103/PhysRevLett.105.137204}, year = {2010}, language = {en} } @article{BisigRhensiusKammereretal.2010, author = {Bisig, Andre and Rhensius, Jan and Kammerer, Matthias and Curcic, Michael and Stoll, Hermann and Sch{\"u}tz, Gisela and Van Waeyenberge, Bartel and Chou, Kang Wei and Tyliszczak, Tolek and Heyderman, Laura J. and Krzyk, Stephen and von Bieren, Arndt and Kl{\"a}ui, Mathias}, title = {Direct imaging of current induced magnetic vortex gyration in an asymmetric potential well}, series = {Applied Physics Letters}, volume = {96}, journal = {Applied Physics Letters}, number = {15}, publisher = {AIP Publishing}, issn = {0003-6951}, doi = {10.1063/1.3373590}, year = {2010}, abstract = {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.}, language = {en} } @article{KammererWeigandCurcicetal.2011, author = {Kammerer, Matthias and Weigand, Markus and Curcic, Michael and Noske, Matthias and Sproll, Markus and Vansteenkiste, Arne and Van Waeyenberge, Bartel and Stoll, Hermann and Woltersdorf, Georg and Back, Christian H. and Schuetz, Gisela}, title = {Magnetic vortex core reversal by excitation of spin waves}, series = {Nature Communications}, volume = {2}, journal = {Nature Communications}, number = {1}, publisher = {Springer Nature}, issn = {2041-1723}, doi = {10.1038/ncomms1277}, year = {2011}, language = {en} } @article{CurcicStollWeigandetal.2011, author = {Curcic, Michael and Stoll, Hermann and Weigand, Markus and Sackmann, Vitalij and Juellig, Patrick and Kammerer, Matthias and Noske, Matthias and Sproll, Markus and Van Waeyenberge, Bartel and Vansteenkiste, Arne and Woltersdorf, Georg and Tyliszczak, Tolek and Sch{\"u}tz, Gisela}, title = {Magnetic vortex core reversal by rotating magnetic fields generated on micrometer length scales}, series = {physica status solidi (b)}, volume = {248}, journal = {physica status solidi (b)}, number = {10}, publisher = {Wiley}, issn = {0370-1972}, doi = {10.1002/pssb.201147208}, pages = {2317 -- 2322}, year = {2011}, abstract = {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.}, language = {en} } @article{BisigAkosaMoonetal.2016, author = {Bisig, Andr{\´e} and Akosa, Collins Ashu and Moon, Jung-Hwan and Rhensius, Jan and Moutafis, Christoforos and von Bieren, Arndt and Heidler, Jakoba and Kiliani, Gillian and Kammerer, Matthias and Curcic, Michael and Weigand, Markus and Tyliszczak, Tolek and Van Waeyenberge, Bartel and Stoll, Hermann and Sch{\"u}tz, Gisela and Lee, Kyung-Jin and Manchon, Aurelien and Kl{\"a}ui, Mathias}, title = {Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect}, series = {Physical Review Letters}, volume = {117}, journal = {Physical Review Letters}, number = {27}, publisher = {American Physical Society}, issn = {0031-9007}, doi = {10.1103/PhysRevLett.117.277203}, year = {2016}, language = {en} }