Elucidating High Field Phases of the Multiferroic MnWO4 with a Pulsed Magnetic Field and Time of Flight Neutron Laue Diffraction

We have combined time-of-flight neutron Laue diffraction and pulsed high magnetic fields at the Spallation Neutron Source to study the phase diagram of the multiferroic material MnWO4. The control of the field-pulse timing enabled an exploration of magnetic Bragg scattering through the time dependen...

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Bibliographic Details
Published in:Physical review letters 2011-01, Vol.106 (23)
Main Authors: Nojiri, H, Yoshii, Shunsuke, Yasui, Motoyoshi, Okada, Kyoko, Matsuda, M., Santodonato, Louis J, Granroth, Garrett E, Ross, Kathyrn, Carlo, Jeremy P, Gaulin, Bruce D.
Format: Article
Language:English
Subjects:
BRAGG CURVE
CONFIGURATION
DIFFRACTION
EXPLORATION
MAGNETIC FIELDS
NEUTRON DIFFRACTION
NEUTRON SOURCES
NEUTRONS
PHASE DIAGRAMS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
SCATTERING
SPALLATION
TIME DEPENDENCE
WAVELENGTHS
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Summary:We have combined time-of-flight neutron Laue diffraction and pulsed high magnetic fields at the Spallation Neutron Source to study the phase diagram of the multiferroic material MnWO4. The control of the field-pulse timing enabled an exploration of magnetic Bragg scattering through the time dependence of both the neutron wavelength and the pulsed magnetic field. This allowed us to observe several magnetic Bragg peaks in different field-induced phases of MnWO4 with a single instrument configuration. These phases were not previously amenable to neutron diffraction studies due to the large fields involved.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.106.237202