UE46_PGM-1
UE46_PGM-1
UE46_PGM-1 is one of two beamlines situated at the elliptical undulator UE46. The beamline provides soft x-rays with tunable polarization (linear, circular) in the energy range between 120 eV and 2000 eV. It has a plane-grating design, the last mirror chamber is equipped with two mirrors to switch between focussed and collimated beam. The beamline hosts three endstations: an XUV Diffractometer, a High-field Diffractometer, and a 30 Tesla Pulsed Field station for XAS and diffraction.
Beamline data | |
---|---|
Segment | L10 |
Location (Pillar) | 11.2 |
Source | UE46 (Elliptical Undulator) |
Monochromator | PGM |
Energy range | 120 - 2000 eV |
Energy resolution | 10 000 |
Flux | 1012 |
Polarisation |
|
Divergence horizontal | 1 mrad |
Divergence vertical | 1 mrad |
Focus size (hor. x vert.) |
|
User endstation | not possible |
Distance Focus/last valve | 565 mm |
Height Focus/floor level | 1417 mm |
Beam availability | 12h/d |
Phone | +49 30 8062 14717 |
Applicable station(s) | |
Pulsed-field | |
XUV Diffractometer | 3.8 - 320 K ( for T = 3.0 K contact Instrument Scientists) |
High-Field Diffractometer | 4 - 350 K |
UE46_PGM-1 is one of two beamlines situated at the elliptical undulator UE46. The beamline provides soft x-rays with tunable polarization (linear, circular) in the energy range between 120 eV and 2000 eV. It has a plane-grating design, the last mirror chamber hosts two mirrors that can be switched to provide a focussed or collimated beam. Techniques employed at UE46_PGM-1 include polarization-dependent x-ray absorption and resonant soft x-ray scattering experiments, covering a wide range of materials and scientific problems. Continuous-mode scanning is implemented at the beamline, a pair of energy-dependent x-ray absorption scans with opposite light helicities can be recorded with very high quality within less than 10 minutes. Depending on the sample, noise ratios as low as 10-4 can be achieved. The beamline hosts two permanent endstations, the XUV Diffractometer, an instrument dedicated to high performance RSXS studies and the High-Field Diffractometer, an instrument for RSXS and XAS studies in magnetic fields up to 7 Tesla. RSXS and XAS in magnetic fields up to 30 Tesla are available with a recently installed Pulsed Field setup. Beamline and instruments are operated by the Institute Quantum Phenomena in Novel Materials at HZB.
Selected Applications
- Resonant diffraction from magnetic, charge, and orbital order superstructures
- Spectroscopy of electronic ordering phenomena
- Magnetization states of single molecular magnets
- Element-specific magnetic hysteresis loops
- Magnetization depth profiles
Selected Publications
- Yamamoto, Sh.; Gorbunov, D.I.; Prokhnenko, O.; Weschke, E.; Miyata, A.; Diaz-Ortega, I.F.; Strohm, C.; Duc, F.; Henriques, M.S.; Gazizulina, A.; Uhlarz, M.; Mathon, O.; Andreev, A.V.; Nojiri, H.; Wosnitza, J.: Field-induced magnetic transitions in the highly anisotropic ferrimagnet ErFe5Al7 studied by high-field x-ray magnetic dichroism. Physical Review B 109 (2024), p. 094404/1-11
- Kang, M.; Zhang, C.C.; Schierle, E.; McCoy, S.; Li, J.; Sutarto, R.; Suter, A.; Prokscha, T.; Salman, Z.; Weschke, E.; Cybart, S.; Wei, J.Y.T.; Comin, R.: Discovery of charge order in a cuprate Mott insulator. Proceedings of the National Academy of Sciences of the United States of America : PNAS 120 (2023), p. e2302099120/1-7
- Li, Q.; Huang, H.Y.; Ren, T.; Weschke, E.; Ju, L.; Zou, C.; Zhang, S.; Qiu, Q.; Liu, J.; Ding, S.; Singh, A.; Prokhnenko, O.; Huang, D.J.; Esterlis, I.; Wang, Y.; Xie, Y.; Peng, Y.: Prevailing Charge Order in Overdoped La2-xSrxCuO4 beyond the Superconducting Dome. Physical Review Letters 131 (2023), p. 116002/1-7
- Shaw, J.M.; Knut, R.; Armstrong, A.; Bhandary, S.; Kvashnin, Y.; Thonig, D.; Delczeg-Czirjak, E.K.; Karis, O.; Silva, T.J.; Weschke, E.; Nembach, H.T.; Eriksson, O.; Arena, D.A.: Quantifying Spin-Mixed States in Ferromagnets. Physical Review Letters 127 (2021), p. 207201/1-6
- Ghiringhelli, G.; Le Tacon, M.; Minola, M.; Blanco-Canosa, S.; Mazzoli, C.; Brookes, N.B.; De Luca, G.M.; Frano, A.; Hawthorn, D.G.; He, F.; Loew, T.; Sala, M.M.; Peets, D.C.; Salluzzo, M.; Schierle, E.; Sutarto, R.; Sawatzky, G.A.; Weschke, E.; Keimer, B.; Braicovich, L.: Long-Range Incommensurate Charge Fluctuations in (Y,Nd)Ba2Cu3O6+x. Science 337 (2012), p. 821-825
doi: 10.1126/science.1223532
- Fink, J.; Schierle, E.; Weschke, E.; Geck, J.: Resonant elastic soft x-ray scattering. Reports on Progress in Physics 76 (2013), p. 056502/1-59