Zobrazeno 1 - 10
of 82
pro vyhledávání: '"McMorran, Benjamin J."'
Magnetic skyrmions are chiral spin textures which have attracted intense research for their fundamentally novel physics and potential applications as spintronic information carriers. The stability which makes them so potentially useful is a result of
Externí odkaz:
http://arxiv.org/abs/2407.19085
We use a novel scanning electron Mach-Zehnder interferometer constructed in a conventional transmission electron microscope to perform inelastic interferometric imaging with free electrons. An electron wave function is prepared in two paths that pass
Externí odkaz:
http://arxiv.org/abs/2110.02468
Publikováno v:
Phys. Rev. Research 3, 043009 (2021)
We demonstrate a 2-grating free electron Mach-Zehnder interferometer constructed in a transmission electron microscope. A symmetric binary phase grating and condenser lens system forms two spatially separated, focused probes at the sample which can b
Externí odkaz:
http://arxiv.org/abs/2104.09992
Autor:
Yasin, Fehmi S., Harvey, Tyler R., Chess, Jordan J., Pierce, Jordan S., Ophus, Colin, Ercius, Peter, McMorran, Benjamin J.
Atomic resolution imaging in transmission electron microscopy (TEM) and scanning TEM (STEM) of light elements in electron-transparent materials has long been a challenge. Biomolecular materials, for example, are rapidly altered when illuminated with
Externí odkaz:
http://arxiv.org/abs/1808.01016
Autor:
Harvey, Tyler R., Yasin, Fehmi S., Chess, Jordan J., Pierce, Jordan S., Reis, Roberto M. S. dos, Özdöl, Vasfi Burak, Ercius, Peter, Ciston, Jim, Feng, Wenchun, Kotov, Nicholas A., McMorran, Benjamin J., Ophus, Colin
Publikováno v:
Phys. Rev. Applied 10, 061001 (2018)
Efficient imaging of biomolecules, 2D materials and electromagnetic fields depends on retrieval of the phase of transmitted electrons. We demonstrate a method to measure phase in a scanning transmission electron microscope using a nanofabricated diff
Externí odkaz:
http://arxiv.org/abs/1808.00370
Publikováno v:
New J. Phys. 19, 023053 (2017)
We propose a method for sorting electrons by orbital angular momentum (OAM). Several methods now exist to prepare electron wavefunctions in OAM states, but no technique has been developed for efficient, parallel measurement of pure and mixed electron
Externí odkaz:
http://arxiv.org/abs/1609.09124
Autor:
Chess, Jordan J., Montoya, Sergio A., Harvey, Tyler R., Ophus, Colin, Couture, Simon, Lomakin, Vitaliy, Fullerton, Eric E., McMorran, Benjamin J.
Recently, Lorentz transmission electron microscopy (LTEM) has helped researchers advance the emerging field of magnetic skyrmions. These magnetic quasi-particles, composed of topologically non-trivial magnetization textures, have a large potential fo
Externí odkaz:
http://arxiv.org/abs/1608.06000
Publikováno v:
Phys. Rev. A 95, 021801 (2017)
Many methods now exist to prepare free electrons into orbital angular momentum states, and the predicted applications of these electron states as probes of materials and scattering processes are numerous. The development of electron orbital angular m
Externí odkaz:
http://arxiv.org/abs/1606.03631
We report observation of electron helical dichroism on a material with chiral structure. In analogy with circular dichroism, a common technique for molecular structural fingerprinting, we use a nanofabricated forked diffraction grating to prepare ele
Externí odkaz:
http://arxiv.org/abs/1507.01810
Publikováno v:
Microscopy & Microanalysis; 2024 Supplement, Vol. 30, p1-5, 5p
