M Escher et al 2005 J. Phys.: Condens. Matter 17 S1329 doi:10.1088/0953-8984/17/16/004
NanoESCA: a novel energy filter for imaging x-ray photoemission spectroscopy
M Escher1, N Weber1, M Merkel1, C Ziethen2, P Bernhard2, G Schönhense2, S Schmidt3, F Forster3, F Reinert3, B Krömker4 and D Funnemann4
Show affiliationsA novel instrument for imaging ESCA is described. It is based on a tandem arrangement of two hemispherical energy analysers used as an imaging energy filter. The main spherical aberration (α2-term) of the analyser is corrected by the antisymmetry of the tandem configuration. The kinetic energy range useable for imaging extends up to 1.6 keV; this is compatible with Mg and Al Kα laboratory x-ray sources. First experiments on the chemical surface composition of a Cu0.98Bi0.02 polycrystal, a GaAs/AlGaAs heterostructure and Ag crystallites on Si(111) have been performed using synchrotron radiation. The results reveal an energy resolution of 190 meV and a lateral resolution (edge resolution) of 120 nm. Besides elimination of the analyser's spherical aberration, the tandem arrangement largely retains the time structure of the electron signal, unlike a single hemispherical analyser.
- PACS
-
82.80.Pv Electron spectroscopy (x-ray photoelectron (XPS), Auger electron spectroscopy (AES), etc.)
- Subjects
-
Condensed matter: electrical, magnetic and optical
- Dates
-
Issue 16 (27 April 2005)
Received 13 May 2004, in final form 9 December 2004
Published 8 April 2005
-
NanoESCA: a novel energy filter for imaging x-ray photoemission spectroscopy
M Escher et al 2005 J. Phys.: Condens. Matter 17 S1329
-
Half-skyrmion picture for high-temperature superconductivity and its simulation in cold atoms
T Morinari 2006 J. Phys. B: At. Mol. Opt. Phys. 39 S37
-
Classical r-matrices and the Feigin–Odesskii algebra via Hamiltonian and Poisson reductions
H W Braden et al 2003 J. Phys. A: Math. Gen. 36 6979
-
Merger of black hole–neutron star binaries in full general relativity
Masaru Shibata and Koji Ury
2007 Class. Quantum Grav. 24 S125 -
Chandra X-Ray Spectroscopy and Imaging of the Galaxy Cluster PKS 0745–191
Amalia K. Hicks et al. 2002 ApJ 580 763
-
A remedy for constraint growth in numerical relativity: the Maxwell case
Gioel Calabrese 2004 Class. Quantum Grav. 21 4025
-
JET radiative mantle experiments in ELMy H-Mode
J D Strachan et al 2000 Plasma Phys. Control. Fusion 42 A81
-
Scattering states of hydrogenic atomic system in front of a metal surface
M L Martiarena and V H Ponce 2003 J. Phys. B: At. Mol. Opt. Phys. 36 2991
-
New insight on the local structure of Cu2+ ion in the solution of CuBr2 by EXAFS studies
Meijuan Yu et al 2009 J. Phys.: Conf. Ser. 190 012060
-
Singularity avoidance in quantum FRW cosmologies in the presence of barotropic perfect fluids
Emilio Elizalde and Jaume Haro 2009 J. Phys. A: Math. Theor. 42 472001