Observation of magnetic transition around room temperature in the spinel Li[Mn1.96Li0.04]O4 by inelastic neutron scattering

2004 ◽  
Vol 350 (1-3) ◽  
pp. E991-E993 ◽  
Author(s):  
A.J.M Schmets ◽  
G.J Kearley ◽  
H Mutka ◽  
I.M de Schepper
Keyword(s):  
Neutron Scattering ◽  
Room Temperature ◽  
Inelastic Neutron Scattering ◽  
Magnetic Transition ◽  
Inelastic Neutron

scholarly journals Incommensurate magnetic ordering and magnetoelectric coupling of BiFeO3

2014 ◽  
Vol 70 (a1) ◽  
pp. C390-C390
Author(s):  
Je-Geun Park
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Magnetic Transition ◽  
Magnetic Ordering ◽  
Inelastic Neutron ◽  
Magnetoelectric Coupling ◽  
The Other ◽  
Scattering Data ◽  
Spin Hamiltonian ◽  
Key Questions

BiFeO3 is arguably one of the most interesting multiferroic materials with both ferroelectric and magnetic transition above room temperature. Moreover, it has one of the highest polarization values, near 90 microC/cm2. The other interest lies in the cycloid magnetic structure with an unusually long-period of 620 Å. One of the key questions when it comes to the fundamental understanding of BiFeO3 is how the structure evolves as a function of temperature, especially across the cycloid transition, and whether there is any structural evidence of the most sought-after magnetoelectric coupling. The other principal question concerns with a full spin Hamiltonian necessary to describe the cycloid structure and the other fascinating physical properties. In order to answer these two questions, we have carried out high-resolution structural and dynamics studies using both neutron and synchrotron facilities on powder and single crystal samples. In this talk, we will highlight the structural evidence of the magnetoelectric coupling and high-field quenching of the cycloid above 20 Tesla from high-precision neutron scattering studies [1a,b,c]. We will also present inelastic neutron scattering data, from which we succeeded in establishing the full spin Hamiltonian [2-3].

Anomalous vibrational modes in acetanilide as studied by inelastic neutron scattering

1992 ◽  
Vol 2 (10) ◽  
pp. 1929-1939 ◽  
Author(s):  
Mariette Barthes ◽  
Juegen Eckert ◽  
Susanna W. Johnson ◽  
Jacques Moret ◽  
Basil I. Swanson ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Vibrational Modes

Inelastic neutron scattering study of icosahedral AlFeCu quasicrystal

1992 ◽  
Vol 2 (2) ◽  
pp. 125-130 ◽  
Author(s):  
M. Quilichini ◽  
B. Hennion ◽  
G. Heger ◽  
S. Lefebvre ◽  
A. Quivy
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Scattering Study ◽  
Neutron Scattering Study

INELASTIC NEUTRON SCATTERING ON THE SPIN GLASS : PdMn 10 - at. %

1978 ◽  
Vol 39 (C6) ◽  
pp. C6-918-C6-919 ◽  
Author(s):  
B. H. Verbeek ◽  
C. Van Dijk ◽  
C. J. Nieuwenhuys ◽  
J. A. Mydosh
Keyword(s):  
Neutron Scattering ◽  
Spin Glass ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron
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