К вопросу о визуализации травматичного и деструктивного опыта в европейском искусстве

На основании разведения понятий травматичного и деструктивного опытов производится анализ конкретных произведений искусства. Акцент сделан на соотношении художественного образа и художественных приемов с процессом разрушения традиционного, классического мировосприятия, основанного на центрировании метафизических категорий. Полагается, что европейское искусство, вплоть до второй половины ХХ в., в большей степени было ориентировано на визуализацию деструктивного культурного опыта; современное искусство сосредотачивается на травматичном опыте

Direct visualization of dynamic magnetic coupling in a Co/Py bilayer with picosecond and nanometer resolution

We present a combination of ferromagnetic resonance (FMR) with spatially and time-resolved X-ray absorption spectroscopy in a scanning transmission X-ray microscope (STXM-FMR). The transverse high frequency component of the resonantly excited magnetization is measured with element-specifity in a Permalloy (Py) disk - Cobalt (Co) stripe bilayer microstructure. STXM-FMR mappings are snapshots of the local magnetization-precession with nm spatial resolution and ps temporal resolution. We directly observe the transfer of angular momentum from Py to Co and vice versa at their respective element-specific resonances. A third resonance could be observed in our experiments, which is identified as a coupled resonance of Py and Co.Comment: Version submitted to Physical Review Applied with updated author list and supplemental information (Ancillary file

Microwave soft x-ray microscopy for nanoscale magnetization dynamics in the 5-10 GHz frequency range

We present a scanning transmission x-ray microscopy setup combined with a novel microwave synchronization scheme in order to study high frequency magnetization dynamics at synchrotron light sources. The sensitivity necessary to detect small changes of the magnetization on short time scales and nanometer spatial dimensions is achieved by combination of the developed excitation mechanism with a single photon counting electronics that is locked to the synchrotron operation frequency. The required mechanical stability is achieved by a compact design of the microscope. Our instrument is capable of creating direct images of dynamical phenomena in the 5-10 GHz range, with 35 nm resolution. When used together with circularly polarized x-rays, the above capabilities can be combined to study magnetic phenomena at microwave frequencies, such as ferromagnetic resonance (FMR) and spin waves. We demonstrate the capabilities of our technique by presenting phase resolved images of a 6 GHz nanoscale spin wave generated by a spin torque oscillator, as well as the uniform ferromagnetic precession with ~0.1 deg amplitude at 9 GHz in a micrometer-sized cobalt strip.Comment: 9 pages, 7 figure