0000000000765596
AUTHOR
D. Vasilyev
Bulk spin polarization of magnetite from spin-resolved hard x-ray photoelectron spectroscopy
Physical review / B 104(4), 045129 (1-10) (2021). doi:10.1103/PhysRevB.104.045129
Spinovo rozlisena time-of-flight k-reozlisena fotoemissia Ir-- Kompletny fotoemissny experiment.
Ultramicroscopy 183, 19 - 29 (2017). doi:10.1016/j.ultramic.2017.06.025
Suppression of the vacuum space-charge effect in fs-photoemission by a retarding electrostatic front lens
Review of scientific instruments 92(5), 053703 (2021). doi:10.1063/5.0046567
Rashba splitting of the Tamm surface state on Re(0001) observed by spin-resolved photoemission and scanning tunneling spectroscopy
Physical review research 2(1), 013296 (2020). doi:10.1103/PhysRevResearch.2.013296
Band structure tuning of Heusler compounds: Spin- and momentum-resolved electronic structure analysis of compounds with different band filling
Physical review / B 103(5), 054407 (2021). doi:10.1103/PhysRevB.103.054407
Progress in HAXPES performance combining full-field k-imaging with time-of-flight recording
Journal of synchrotron radiation 26(6), 1996-2012 (2019). doi:10.1107/S1600577519012773
Single-Hemisphere Photoelectron Momentum Microscope With Time-of-Flight Recording
Photoelectron momentum microscopy is an emerging powerful method for angle-resolved photoelectron spectroscopy (ARPES), especially in combination with imaging spin filters. These instruments record kx-ky images, typically exceeding a full Brillouin zone. As energy filters double-hemispherical or time-of-flight (ToF) devices are in use. Here we present a new approach for momentum mapping of the full half-space, based on a single hemispherical analyzer (path radius 225 mm). Excitation by an unfocused He lamp yielded an energy resolution of 7.7 meV. The performance is demonstrated by k-imaging of quantum-well states in Au and Xe multilayers. The alpha-square-aberration term (alpha: entrance an…
Néel Vector Induced Manipulation of Valence States in the Collinear Antiferromagnet Mn 2 Au
The coupling of real and momentum space is utilized to tailor electronic properties of the collinear metallic antiferromagnet Mn2Au by aligning the real space Neel vector indicating the direction o...
Temperature-Dependent Change of the Electronic Structure in the Kondo Lattice System $YbRh_{2}Si_{2}$
Seminar, Deutschland; Journal of physics / Condensed matter 00(00), 1-20 (2021). doi:10.1088/1361-648X/abe479
Site-specific atomic order and band structure tailoring in the diluted magnetic semiconductor (In,Ga,Mn)As
Physical review / B 103(7), 075107 (1-13) (2021). doi:10.1103/PhysRevB.103.075107
Exchange Splitting of a Hybrid Surface State and Ferromagnetic Order in a 2D Surface Alloy
Surface alloys are highly flexible materials for tailoring the spin-dependent properties of surfaces. Here, we study the spin-dependent band structure of a DyAg$_2$ surface alloy formed on an Ag(111) crystal. We find a significant exchange spin-splitting of the localized Dy 4f states pointing to a ferromagnetic coupling between the localized Dy moments at $40\,$K. The magnetic coupling between these moments is mediated by an indirect, RKKY-like exchange coupling via the spin-polarized electrons of the hole-like Dy-Ag hybrid surface state.
Multidimensional photoemission spectroscopy—the space-charge limit
New journal of physics 20(3), 033004 - (2018). doi:10.1088/1367-2630/aaa262
High-resolution hard-x-ray photoelectron diffraction in a momentum microscope—the model case of graphite
New journal of physics 21(11), 113031 - (2019). doi:10.1088/1367-2630/ab51fe
Emitter-site specificity of hard x-ray photoelectron Kikuchi-diffraction
New journal of physics 22(10), 103002 (1-13) (2020). doi:10.1088/1367-2630/abb68b
Time-of-flight photoelectron momentum microscopy with 80–500 MHz photon sources: electron-optical pulse picker or bandpass pre-filter
Journal of synchrotron radiation 28(6), 1891 - 1908 (2021). doi:10.1107/S1600577521010511