Progress in HAXPES performance combining full-field k-imaging with time-of-flight recording

Medjanik, K.; Babenkov, S.V.; Chernov, S.; Vasilyev, D.; Schönhense, B.; Schlueter, C.; Gloskovskii, A.; Matveyev, Y.; Drube, W.; Elmers, H.J.; Schoenhense, G.

doi:10.1107/S1600577519012773

Figure 6
Quantitative analysis of the measured valence-band patterns of Fig. 5

. (a) k-space scheme of direct transitions from the valence-band of Re to free-electron-like final states in the energy range used. The periodic background pattern is a measured Fermi-surface cut in this plane; the pattern is to scale with k_z and k_y quantified in multiples of the reciprocal lattice vectors G₀₀₀₁ and $[{\bi{G}}_{11\bar20}]$ for Re. The dotted rectangle in the lower inset marks the first BZ. The three transitions shown lead to final-state energy isospheres crossing the 18th, 23rd and 28th repeated BZ along k_z. k_hν is the photon momentum which lies in the drawing plane and leads to a displacement of the centers of the final-state spheres (shown in detail in the lower inset). (b) Brillouin zone with high-symmetry points and direction of photon impact. (c) Measured Fermi surface in different perspectives. The central panel denotes the cut leading to the background pattern in (a). Movies showing the measured momentum pattern at 3.830 keV as a function of binding energy, a k_z-scan across the spectral density and a perspective view of the Fermi surface are shown in the supporting information.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 26| Part 6| November 2019| Pages 1996-2012

https://doi.org/10.1107/S1600577519012773

Open

access

Search IUCr Journals		doi		Advanced search
Author		volume	page