Diamond Update: Surface and Interface Beamlines
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1 Diamond Update: Surface and Interface Beamlines I. K. Robinson University College London Diamond Light Source Argonne SIS group pizza lunch 21 April 2009
2 Outline Coherent X-ray Diffraction Imaging of small crystals and strain fields Domain speckle patterns X-ray Ptychography Pulsed field experiments
3 Diamond Light Source (RAL)
4 Last Girder March 2006
5 First Light - May 2006 ramped to 3GeV Sept 2006
6 Diamond in-vacuum X-ray Undulator
7 Diamond Floor plan
8 Surface and Interface Village I-06 (1/2007) Nanoscience, Sarnjeet Dhesi I-07 (10/2009) SIXRD, Chris Nicklin I-09 (4/2011) SISA, Tien-Lin Lee I-10 (10/2010) BLADE, Paul Steadman
9 I-06 Nanoscience layout
10 I-06 Nanoscience PEEM instrument
11 I-07 Surface-Interface XRD
12 I-07 Surface-Interface XRD optics
13 I-07 experimental Hutch 1 Hexapod or Eulerian cradle (load capacity: <50kg vertical mounting; <200kg horizontal mounting) Horizontal or vertical scattering geometry Scattering from liquid surfaces, Qz <1Å-1 Ultrahigh vacuum baby chamber Closed cycle cryostat ( K) Controlled atmosphere environments Furnace ( K) Electrochemical and solid-liquid cells Liquid and Langmuir troughs
14 I-07 experimental Hutch Circle Diffractometer Hexapod sample stage Vertical Scattering Geometry Large ultrahigh vacuum sample chamber (removable) Ability to mount other large chambers In situ preparation and characterisation using standard surface science techniques. Sample heating up to ~1800K
15 I-07 supporting Lab Nima Langmuir Trough Nanofilm Imaging Spectroscopic Ellipsometer (incorporating Brewster angle microscopy) Kruss Drop Shape Analysis Tensiometer Laurell Spin Coater UV-Ozone cleaner Veeco Atomic Force Microscope Offline UHV chamber inc, STM, LEED, XPS, etc.
16 I-07 Surface-Interface XRD
17 I-09 SISA capabilities Core Techniques Near Edge X-ray Absorption Fine Structure (NEXAFS) (also called XANES) Photoelectron Diffraction (PhD) X-ray Standing Wave (XSW) Normal Incidence X-ray Standing Wave (NIXSW) X-ray reflectivity New Techniques Depth Profile NIXSW, SEXAFS, XSW and NIXSW Variable Period X-ray Standing Wave (VPXSW) analysis
18 I-09L SISA floor plan 2 beams on sample, Canted undulators
19 I-10 BLADE BeamLine for Advanced Dichroism Experiments variable linear and circular polarized x-rays energy range 0.4 to 2 kev soft x-ray resonant scattering multi-circle UHV diffractometer (XRMS) liquid helium cooling sample magnetization 9 T magnet with UHV environment (XMCD) time resolved studies and coherent radiation.
20 LaMnO 3 and Pr 0.6 Ca 0.4 MnO 3 speckle C. S. Nelson, J. P. Hill, Doon Gibbs, F. Yakhou, F. Livet, Y. Tomioka, T. Kimura and Y. Tokura, PRB 66, (2002)
21 Pr 0.5 Ca 0.5 MnO 3 at MnL III edge (650 ev) J. J. Turner et al, New Journal of Physics (2008) (0, ½, 0) Orbital ordered T=205K (0, ½, 0) Near phase transition T=232K
22 Co/ Pt multilayer line grating at 780eV K. Chesnel et al, PRB (2004)
23 X-ray Holography of Pt/CoML Domains S. Eisebitt et al, Nature (2004) Field of view 1.5 µm
24 X-ray Ptychography J. Rodenburg et al, PRL 98, (2007)
25 X-ray Ptychography P. Thibault et al, Science (2008)
26 Reconstruction of Probe P. Thibault et al, Science (2008)
27 Thin film growth after deposition C. V. Thompson, Annu. Rev. Mater. Sci :159 90
28 Epitaxial growth effects φ 3 φ 2 φ 1 φ 2 φ 1 φ 4
29 Niobium (110) Thin Film Grains Richard Bean, I-16, Nb Jan 2009 I. K. Robinson SIS 2009
30 FeAl antiphase domains (001) Lorenz Stadler, PhD dissertation, TU Wien (2005)
31 Ptychography phasing tests Diffraction patterns computed from i) simulated domain array ii) propagated pinhole function with an overlap of ~80% between adjacent positions. Richard Bean, UCL, Jan 2009
32 Ptychography phasing tests Sheffield Ptychography algorithm starting with an array of random numbers in both amplitude and phase. 7x3 array. Richard Bean, Jan 2009 Amplitude and phase after 1 iteration. Amplitude and phase after 20 iterations.
33 Apply Electric Field along ZnO NC Marcus Newton. 34-ID-C zno Aug 2008 I. K. Robinson SIS 2009
34 Special thanks to: Ross Harder 34-ID-C beamline Ivan Vartaniants, Garth Williams, Mark Pfeifer Marcus Newton, Steven Leake ZnO Moyu Watari, Loren Beitra Au Richard Bean, Felisa Berenguer Nb ERC-FP7, EPSRC, Royal Society, DOE
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