Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Holger Schmidt"'
Autor:
Wei-Gang Yang, Holger Schmidt
Publikováno v:
Applied Physics Reviews. 8:021304
The control of magnetism by acoustically induced strain has driven significant research activities, with the ultimate goal of pursuing novel, ultrafast, compact, and energy-efficient electronic and spintronic applications. Here, we aim to present for
Autor:
Holger Schmidt, Wei-Gang Yang
Publikováno v:
Applied Physics Letters. 116:212401
Magnetization dynamics of nanomagnets directly determine the performance of magnetic storage and memory devices. Here, we report a 10-times enhancement of magnetization dynamics excitation of single nanomagnets using focused surface acoustic waves (S
Autor:
Holger Schmidt
Publikováno v:
Journal of Applied Physics. 93:2107-2112
We present an exact treatment of magnetization reversal by coherent rotation in single-domain magnets with multiple crystal anisotropy axes. External switching field values can be determined for arbitrary relative orientations of crystal axes, extern
Publikováno v:
Journal of Applied Physics. 121:163903
Magnetization dynamics of a Co/Ni multilayer film capped by a wedged Ta (0.3–1.3 nm) layer were investigated using time-resolved magneto-optic Kerr microscopy. The ferromagnetic resonance was observed for a wide range of magnetic fields in a variet
Publikováno v:
Journal of Applied Physics. 89:5667-5670
Macroscopic and microscopic switching characteristics are obtained for 100 nm period arrays of Ni nanomagnets with a mean switching field (coercive field) of 710 Oe. Magnetic force microscopy in combination with micromagnetic theory shows that inhomo
Autor:
Aaron R. Hawkins, B. K. Mahato, Scott Dhuey, Stefano Cabrini, Holger Schmidt, M. Jaris, Vladimir Nikitin, Y. Yahagi, John M. Stout
Publikováno v:
Applied Physics Letters. 109:202403
We report the all-optical observation of intrinsic spin dynamics and extraction of magnetic material parameters from arrays of sub-100 nm spin-transfer torque magnetic random access memory (STT-MRAM) devices with a CoFeB/MgO interface. To this end, t
Publikováno v:
Biomicrofluidics. 10:064116
We have developed an optofluidic analysis system that processes biomolecular samples starting from whole blood and then analyzes and identifies multiple targets on a silicon-based molecular detection platform. We demonstrate blood filtration, sample
Autor:
Rajeev J. Ram, Holger Schmidt
Publikováno v:
Journal of Applied Physics. 89:507-513
We discuss coherent magnetization reversal in single-domain particles with cubic or uniaxial crystal anisotropy and present the derivation and simulation of the nucleation field in the important case of particles with shape anisotropy and a random or
Publikováno v:
Applied Physics Letters. 85:431-433
We present a study of cavity enhancement of the magneto-optic Kerr effect using dielectric multilayers in order to facilitate optical studies of individual single-domain nanomagnets. We develop a transfer matrix theory to analyze Kerr rotation from a
Autor:
Rajeev J. Ram, Holger Schmidt
Publikováno v:
Applied Physics Letters. 76:3173-3175
We propose a method for all-optical switching and wavelength conversion using electromagnetically induced transparency (EIT). We discuss the mechanism for the transfer of information in this scheme and determine the conditions for which N×N waveleng