Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Bracher, David"'
Autor:
Vijayakumar, Jaianth, Savchenko, Tatiana M., Bracher, David M., Lumbeeck, Gunnar, Béché, Armand, Verbeeck, Jo, Vajda, Štefan, Nolting, Frithjof, Vaz, C. A. F., Kleibert, Armin
We present a detailed atomistic picture of the oxidation mechanism of Co nanoparticles and its impact on magnetism by experimentally following the evolution of the structure, chemical composition, and magnetism of individual, gas-phase grown Co nanop
Externí odkaz:
http://arxiv.org/abs/2209.06949
Autor:
Savchenko, Tatiana M., Buzzi, Michele, Howald, Ludovic, Ruta, Sergiu, Vijayakumar, Jaianth, Timm, Martin, Bracher, David, Saha, Susmita, Derlet, Peter M., Béché, Armand, Verbeeck, Jo, Chantrell, Roy W., Vaz, C. A. F., Nolting, Frithjof, Kleibert, Armin
Publikováno v:
Phys. Rev. B 102, 205418 (2020)
Laser-induced manipulation of magnetism at the nanoscale is a rapidly growing research topic with potential for applications in spintronics. In this work, we address the role of the scattering cross section, thermal effects, and laser fluence on the
Externí odkaz:
http://arxiv.org/abs/2007.04011
Autor:
Vijayakumar, Jaianth, Bracher, David, Savchenko, Tatiana M., Horisberger, Michael, Nolting, Frithjof, Vaz, C. A. F.
Publikováno v:
J. Appl. Phys., 125:114101, 2019
In this work we show the presence of a magnetoelectric coupling in silicon-nitride gated Pt/Co/Pt heterostructures using X-ray photoemission electron microscopy (XPEEM). We observe a change in magnetic anisotropy in the form of domain wall nucleation
Externí odkaz:
http://arxiv.org/abs/1905.03082
Autor:
Mendil, Johannes, Trassin, Morgan, Bu, Qingqing, Schaab, Jakob, Baumgartner, Manuel, Murer, Christoph, Dao, Phuong T., Vijayakumar, Jaianth, Bracher, David, Bouillet, Corinne, Vaz, Carlos A. F., Fiebig, Manfred, Gambardella, Pietro
Publikováno v:
Physical Review MATERIALS 3, 034403 (2019)
We report on the structure, magnetization, magnetic anisotropy, and domain morphology of ultrathin yttrium iron garnet (YIG)/Pt films with thickness ranging from 3 to 90 nm. We find that the saturation magnetization is close to the bulk value in the
Externí odkaz:
http://arxiv.org/abs/1903.08285
Thick Permalloy films for the imaging of spin texture dynamics in perpendicularly magnetized systems
Autor:
Finizio, Simone, Wintz, Sebastian, Bracher, David, Kirk, Eugenie, Semisalova, Anna S., Förster, Johannes, Zeissler, Katharina, Weßels, Teresa, Weigand, Markus, Lenz, Kilian, Kleibert, Armin, Raabe, Jörg
Publikováno v:
Phys. Rev. B 98, 104415 (2018)
We demonstrated that thick Permalloy films exhibiting a weak growth-induced perpendicular magnetic anisotropy can be employed as an ideal test system for the investigation of gyration dynamics in topologically trivial and non-trivial magnetic states
Externí odkaz:
http://arxiv.org/abs/1807.10654
Autor:
Zeissler, Katharina, Finizio, Simone, Shahbazi, Kowsar, Massey, Jamie, Ma`Mari, Fatma Al, Bracher, David M., Kleibert, Armin, Rosamond, Mark C., Linfield, Edmund H., Moore, Thomas A., Raabe, Jörg, Burnell, Gavin, Marrows, Christopher H.
Magnetic skyrmions are knot-like quasiparticles. They are candidates for non-volatile data storage in which information is moved between fixed read and write terminals. Read-out operation of skyrmion-based spintronic devices will rely upon electrical
Externí odkaz:
http://arxiv.org/abs/1706.06024
Point defects in silicon carbide are rapidly becoming a platform of great interest for single photon generation, quantum sensing, and quantum information science. Photonic crystal cavities (PCC) can serve as an efficient light-matter interface both t
Externí odkaz:
http://arxiv.org/abs/1609.03918
Autor:
Lee, Jonathan C., Bracher, David O., Cui, Shanying, Ohno, Kenichi, McLellan, Claire A., Zhang, Xingyu, Andrich, Paolo, Aleman, Benjamin, Russell, Kasey J., Magyar, Andrew P., Aharonovich, Igor, Jayich, Ania Bleszynski, Awschalom, David, Hu, Evelyn L.
The negatively-charged nitrogen vacancy center (NV) in diamond has generated significant interest as a platform for quantum information processing and sensing in the solid state. For most applications, high quality optical cavities are required to en
Externí odkaz:
http://arxiv.org/abs/1411.0725
Engineering nanostructures from the bottom up enables the creation of carefully engineered complex structures that are not accessible via top down fabrication techniques, in particular, complex periodic structures for applications in photonics and se
Externí odkaz:
http://arxiv.org/abs/1309.0294