scholarly journals Femtoscale Magnetically Induced Lattice Distortions in Multiferroic TbMnO3

Science ◽  
2011 ◽  
Vol 333 (6047) ◽  
pp. 1273-1276 ◽  
Author(s):  
H. C. Walker ◽  
F. Fabrizi ◽  
L. Paolasini ◽  
F. de Bergevin ◽  
J. Herrero-Martin ◽  
...  
Keyword(s):  
Magnetic Order ◽  
Magnetic Domain ◽  
Substantial Contribution ◽  
Zero Field ◽  
Long Range Order ◽  
X Ray ◽  
X Ray Scattering ◽  
Domain State ◽  
Competing Models ◽  
Lattice Distortions

Magneto-electric multiferroics exemplified by TbMnO3 possess both magnetic and ferroelectric long-range order. The magnetic order is mostly understood, whereas the nature of the ferroelectricity has remained more elusive. Competing models proposed to explain the ferroelectricity are associated respectively with charge transfer and ionic displacements. Exploiting the magneto-electric coupling, we used an electric field to produce a single magnetic domain state, and a magnetic field to induce ionic displacements. Under these conditions, interference between charge and magnetic x-ray scattering arose, encoding the amplitude and phase of the displacements. When combined with a theoretical analysis, our data allow us to resolve the ionic displacements at the femtoscale, and show that such displacements make a substantial contribution to the zero-field ferroelectric moment.

Interplay of charge, orbital and magnetic order in Pr1−xCaxMnO3

1999 ◽  
Vol 590 ◽  
Author(s):  
M. v. Zimmermann ◽  
J.P. Hill ◽  
Doon Gibbs ◽  
M. Blume ◽  
D. Casa ◽  
...  
Keyword(s):  
High Resolution ◽  
Temperature Dependence ◽  
Magnetic Order ◽  
Charge Order ◽  
Orbital Order ◽  
X Ray ◽  
Antiferromagnetic Ordering ◽  
X Ray Scattering ◽  
Domain State ◽  
Highly Correlated

ABSTRACTWe report resonant x-ray scattering studies of charge and orbital order in Prl−xCaxMnO3 with x=0.4 and 0.5. Below the ordering temperature, To=245 K, the charge and orbital order intensities follow the same temperature dependence, including an increase at the antiferromagnetic ordering temperature, TN. High resolution measurements reveal, however, that long range orbital order is never achieved. Rather, an orbital domain state is formed. Above To, the charge order fluctuations are more highly correlated than the orbital fluctuations. We conclude that the charge order drives the orbital order at the transition.

scholarly journals Resonant x-ray scattering reveals possible disappearance of magnetic order under hydrostatic pressure in the Kitaev candidate γ−Li2IrO3

2017 ◽  
Vol 96 (2) ◽  
Author(s):  
Nicholas P. Breznay ◽  
Alejandro Ruiz ◽  
Alex Frano ◽  
Wenli Bi ◽  
Robert J. Birgeneau ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Magnetic Order ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Magnetic order in a submicron patterned permalloy film studied by resonant x-ray scattering

2004 ◽  
Vol 69 (22) ◽  
Author(s):  
Carlo Spezzani ◽  
Mauro Fabrizioli ◽  
Patrizio Candeloro ◽  
Enzo Di Fabrizio ◽  
Giancarlo Panaccione ◽  
...  
Keyword(s):  
Magnetic Order ◽  
Permalloy Film ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

scholarly journals Magnetic Domain Fluctuations in an Antiferromagnetic Film Observed with Coherent Resonant Soft X-Ray Scattering

2011 ◽  
Vol 106 (7) ◽  
Author(s):  
S. Konings ◽  
C. Schüßler-Langeheine ◽  
H. Ott ◽  
E. Weschke ◽  
E. Schierle ◽  
...  
Keyword(s):  
Magnetic Domain ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Magnetic Field Induced Triple-q Magnetic Order in Trillium Lattice Antiferromagnet EuPtSi Studied by Resonant X-ray Scattering

2019 ◽  
Vol 88 (9) ◽  
pp. 093704 ◽  
Author(s):  
Chihiro Tabata ◽  
Takeshi Matsumura ◽  
Hironori Nakao ◽  
Shinji Michimura ◽  
Masashi Kakihana ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Order ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Magnetic domain fluctuations observed by coherent X-ray scattering

2001 ◽  
Vol 233 (1-2) ◽  
pp. 119-122 ◽  
Author(s):  
F. Yakhou ◽  
A. Létoublon ◽  
F. Livet ◽  
M. de Boissieu ◽  
F. Bley
Keyword(s):  
Magnetic Domain ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Small Angle Neutron Scattering and Time Resolved Small Angle X-Ray Scattering Studies of Triblock Copolymers in Extension

1986 ◽  
Vol 79 ◽  
Author(s):  
R. W. Richards ◽  
J. T. Mullin
Keyword(s):  
Solid State ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Triblock Copolymers ◽  
Cylindrical Domain ◽  
Long Range Order ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Order Domain

Linear triblock copolymers of styrene and isoprene with isoprene as the centre block are microphase separated elastomers in the solid state. The styrene blocks form domains of regular morphology 1arranged on a paracrystalline lattice with considerable long range order. Domain symmetry is chiefly determined by the composition of the block copolymer; only cylindrical domain geometry is dealt with here. Three levels of organisation can be recognised.

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