Neutron scattering from a collective spin fluctuation mode in aCuO2bilayer

1996 ◽  
Vol 53 (9) ◽  
pp. 5149-5152 ◽  
Author(s):  
N. Bulut ◽  
D. J. Scalapino
Keyword(s):  
Neutron Scattering ◽  
Spin Fluctuation ◽  
Fluctuation Mode

Neutron Scattering Study of the Anisotropic Spin Fluctuation in Sr 2 RuO 4

2005 ◽  
Vol 13 (1-3) ◽  
pp. 45-48
Author(s):  
H. Kawano-Furukawa ◽  
M. Urata ◽  
T. Nagata ◽  
H. Yoshizawa ◽  
H. Kadowaki ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Spin Fluctuation ◽  
Scattering Study ◽  
Neutron Scattering Study

scholarly journals Spin Fluctuation and Crystal Field Excitation of Heavy-Fermion Compound YbAgGe Studied by Inelastic Neutron Scattering

2004 ◽  
Vol 73 (11) ◽  
pp. 2967-2970 ◽  
Author(s):  
Takeshi Matsumura ◽  
Hideaki Ishida ◽  
Taku J. Sato ◽  
Kenichi Katoh ◽  
Yuzuru Niide ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Crystal Field ◽  
Heavy Fermion ◽  
Inelastic Neutron Scattering ◽  
Spin Fluctuation ◽  
Inelastic Neutron ◽  
Heavy Fermion Compound ◽  
Field Excitation

scholarly journals Collective spin fluctuation mode and Raman scattering in superconducting cuprates

2000 ◽  
Vol 62 (22) ◽  
pp. 15204-15207 ◽  
Author(s):  
F. Venturini ◽  
U. Michelucci ◽  
T. P. Devereaux ◽  
A. P. Kampf
Keyword(s):  
Raman Scattering ◽  
Spin Fluctuation ◽  
Superconducting Cuprates ◽  
Fluctuation Mode

scholarly journals THEORY OF SINUSOIDAL MODULATION OF THE RESONANT NEUTRON SCATTERING IN HIGH TEMPERATURE SUPERCONDUCTORS

2001 ◽  
Vol 15 (04) ◽  
pp. 373-377
Author(s):  
TAO LI
Keyword(s):  
High Temperature ◽  
Neutron Scattering ◽  
Spin Fluctuation ◽  
High Temperature Superconductors ◽  
S Wave ◽  
Sinusoidal Modulation ◽  
Wave Symmetry ◽  
Superconducting Pairing ◽  
Comparable Magnitude ◽  
Antiferromagnetic Spin

A model with interlayer pairing is proposed to explain the sinusoidal modulation of the resonant neutron scattering in high temperature superconductors. It is found that the interlayer pairing has s-wave symmetry in the CuO 2 plane and has comparable magnitude with the d-wave intralayer pairing. It is also found that the interlayer pairing mainly affects momentum close to the hot spots on the Fermi surface while its effect on the gap nodes is negligible. It is pointed out that these characteristics of the interlayer pairing can be understood in a model in which the superconducting pairing originates from the exchange of the antiferromagnetic spin fluctuation.

Local atomic structure of relaxor ferroelectric solids studied by pulsed neutron scattering

1994 ◽  
Vol 52 ◽  
pp. 554-555
Author(s):  
T. Egami ◽  
H. D. Rosenfeld ◽  
S. Teslic
Keyword(s):  
Neutron Scattering ◽  
Atomic Structure ◽  
Argonne National Laboratory ◽  
Relaxor Ferroelectrics ◽  
Relaxor Ferroelectric ◽  
Crystallographic Structure ◽  
Chemical Inhomogeneity ◽  
Distribution Analysis ◽  
Ferroelectric Transition ◽  
Pulsed Neutron

Relaxor ferroelectrics, such as Pb(Mg1/3Nb2/3)O3 (PMN) or (Pb·88La ·12)(Zr·65Ti·35)O3 (PLZT), show diffuse ferroelectric transition which depends upon frequency of the a.c. field. In spite of their wide use in various applications details of their atomic structure and the mechanism of relaxor ferroelectric transition are not sufficiently understood. While their crystallographic structure is cubic perovskite, ABO3, their thermal factors (apparent amplitude of thermal vibration) is quite large, suggesting local displacive disorder due to heterovalent ion mixing. Electron microscopy suggests nano-scale structural as well as chemical inhomogeneity.We have studied the atomic structure of these solids by pulsed neutron scattering using the atomic pair-distribution analysis. The measurements were made at the Intense Pulsed Neutron Source (IPNS) of Argonne National Laboratory. Pulsed neutrons are produced by a pulsed proton beam accelerated to 750 MeV hitting a uranium target at a rate of 30 Hz. Even after moderation by a liquid methane moderator high flux of epithermal neutrons with energies ranging up to few eV’s remain.

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