Investigation of spin waves in single crystal Bi2CuO4 by inelastic neutron scattering

1992 ◽  
Vol 82 (6) ◽  
pp. 443-446 ◽  
Author(s):  
A. Furrer ◽  
P. Fisher ◽  
B. Roessli ◽  
G. Petrakovskii ◽  
K. Sablina ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Single Crystal ◽  
Inelastic Neutron Scattering ◽  
Spin Waves ◽  
Inelastic Neutron

Low-frequency single-crystal Raman, far-infrared, and inelastic neutron scattering studies of acetanilide at low temperature

1991 ◽  
Vol 95 (13) ◽  
pp. 5281-5286 ◽  
Author(s):  
Clifford T. Johnston ◽  
Stephen F. Agnew ◽  
Juergen Eckert ◽  
Llewellyn H. Jones ◽  
Basil I. Swanson ◽  
...  
Keyword(s):  
Low Temperature ◽  
Neutron Scattering ◽  
Single Crystal ◽  
Inelastic Neutron Scattering ◽  
Low Frequency ◽  
Far Infrared ◽  
Inelastic Neutron

scholarly journals The investigation of Neutron Scattering In Spin Waves Theory of Ferromagnetic Crystals

2014 ◽  
Vol 8 (4) ◽  
Author(s):  
Azadeh Farzaneh ◽  
Mohammad Reza Abdi ◽  
Khadije Rezaee Ebrahim Saraee
Keyword(s):  
Neutron Scattering ◽  
Spin Wave ◽  
Cross Section ◽  
Inelastic Neutron Scattering ◽  
Spin Waves ◽  
Wave Theory ◽  
Spin Correlation ◽  
Inelastic Neutron ◽  
Magnetic Behaviour ◽  
Spin Interaction

Inelastic neutron scattering, probing the temporal spin-spin correlation at the different microscopic scale, is a powerful technique to study the magnetic behaviour of ferromagnetic crystals. In addition, high penetration power of neutron in samples has made it as a useful way for spin-spin interaction in neutron scattering. Changes in the magnetic cross section in term of different energy transfer and temperatures are calculated for nickel and iron as transition metals in Heisenberg model versus spin wave theory by considering atomic form factor. Finally, the effect of magnetic structure and behaviour of crystal in measuring cross-section shows that increasing temperature results in the Cross-section increase Also, the existence of propagating spin waves below Tc is compared in Ni and Fe in different momentum transfers. The relation of spin wave energy with temperature dependence of nickel has created different behaviour in the changes of cross section rather than iron.

scholarly journals An inelastic neutron scattering study of single-crystal heavy-fermion YbAgGe

2005 ◽  
Vol 17 (2) ◽  
pp. 301-311 ◽  
Author(s):  
B Fåk ◽  
D F McMorrow ◽  
P G Niklowitz ◽  
S Raymond ◽  
E Ressouche ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Single Crystal ◽  
Heavy Fermion ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Scattering Study ◽  
Neutron Scattering Study

Inelastic neutron scattering study of spin waves in the garnet with a triangular magnetic structure

1999 ◽  
Vol 11 (14) ◽  
pp. 2869-2878 ◽  
Author(s):  
A Gukasov ◽  
V P Plakhty ◽  
B Dorner ◽  
S Yu Kokovin ◽  
V N Syromyatnikov ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Magnetic Structure ◽  
Inelastic Neutron Scattering ◽  
Spin Waves ◽  
Inelastic Neutron ◽  
Scattering Study ◽  
Neutron Scattering Study

Spin Waves in Ferromagnetic CrBr3Studied by Inelastic Neutron Scattering

1971 ◽  
Vol 3 (1) ◽  
pp. 157-166 ◽  
Author(s):  
E. J. Samuelsen ◽  
Richard Silberglitt ◽  
G. Shirane ◽  
J. P. Remeika
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Spin Waves ◽  
Inelastic Neutron

scholarly journals Spin excitations in metallic kagome lattice FeSn and CoSn

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Yaofeng Xie ◽  
Lebing Chen ◽  
Tong Chen ◽  
Qi Wang ◽  
Qiangwei Yin ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Spin Waves ◽  
Inelastic Neutron ◽  
Spin Excitation ◽  
Destructive Interference ◽  
Kagome Lattice ◽  
Kagomé Lattice ◽  
Flat Bands ◽  
Spin Excitations

AbstractIn two-dimensional (2D) metallic kagome lattice materials, destructive interference of electronic hopping pathways around the kagome bracket can produce nearly localized electrons, and thus electronic bands that are flat in momentum space. When ferromagnetic order breaks the degeneracy of the electronic bands and splits them into the spin-up majority and spin-down minority electronic bands, quasiparticle excitations between the spin-up and spin-down flat bands should form a narrow localized spin-excitation Stoner continuum coexisting with well-defined spin waves in the long wavelengths. Here we report inelastic neutron scattering studies of spin excitations in 2D metallic kagome lattice antiferromagnetic FeSn and paramagnetic CoSn, where angle resolved photoemission spectroscopy experiments found spin-polarized and nonpolarized flat bands, respectively, below the Fermi level. Our measurements on FeSn and CoSn reveal well-defined spin waves extending above 140 meV and correlated paramagnetic scattering around Γ point below 90 meV, respectively. In addition, we observed non-dispersive excitations at ~170 meV and ~360 meV arising mostly from hydrocarbon scattering of the CYTOP-M used to glue the samples to aluminum holder. Therefore, our results established the evolution of spin excitations in FeSn and CoSn, and identified anomalous flat modes overlooked by the neutron scattering community for many years.

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