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Polarized neutron Laue diffraction on a crystal containing dynamically polarized proton spins
Author(s) -
Piegsa F. M.,
Karlsson M.,
van den Brandt B.,
Carlile C. J.,
Forgan E. M.,
Hautle P.,
Konter J. A.,
McIntyre G. J.,
Zimmer O.
Publication year - 2013
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889812048376
Subject(s) - spins , neutron diffraction , proton , neutron , polarization (electrochemistry) , bragg peak , bragg's law , crystal (programming language) , physics , optics , single crystal , diffraction , magnesium nitrate , materials science , molecular physics , nuclear magnetic resonance , chemistry , condensed matter physics , magnesium , nuclear physics , computer science , programming language , metallurgy
A polarized neutron Laue diffraction experiment on a single crystal of neodymium‐doped lanthanum magnesium nitrate hydrate containing polarized proton spins is reported. By using dynamic nuclear polarization to polarize the proton spins, it is demonstrated that the intensities of the Bragg peaks can be enhanced or diminished significantly, whilst the incoherent background, due to proton spin disorder, is reduced. It follows that the method offers unique possibilities to tune continuously the contrast of the Bragg reflections and thereby represents a new tool for increasing substantially the signal‐to‐noise ratio in neutron diffraction patterns of hydrogenous matter.