Polarized neutron Laue diffraction on a crystal containing dynamically polarized proton spins
Artikel i vetenskaplig tidskrift, 2013

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.

Författare

F.M. Piegsa

ETH Zurich

Institut Laue-Langevin

Maths Karlsson

Chalmers, Teknisk fysik, Kondenserade materiens fysik

B. Van Den Brandt

Paul Scherrer Institut

C.J. Carlile

European Spallation Source ESS AB

E.M. Forgan

University of Birmingham

P. Hautle

Paul Scherrer Institut

J.A. Konter

Paul Scherrer Institut

G.J. McIntyre

Institut Laue-Langevin

Australian Nuclear Science and Technology Organisation

O. Zimmer

Institut Laue-Langevin

Journal of Applied Crystallography

0021-8898 (ISSN) 1600-5767 (eISSN)

Vol. 46 30-34

Ämneskategorier

Atom- och molekylfysik och optik

Den kondenserade materiens fysik

Styrkeområden

Materialvetenskap

DOI

10.1107/S0021889812048376