In situ brillouin scattering investigation of spin waves during the fcc to bcc transition of Fe/Cu[100] films

2003 ◽  
Vol 39 (5) ◽  
pp. 2708-2710 ◽  
Author(s):  
G. Carlotti ◽  
G. Gubbiotti ◽  
M. Madami ◽  
G. Socino ◽  
S. Tacchi
Keyword(s):  
Brillouin Scattering ◽  
Spin Waves

Brillouin scattering of light by spin waves in thin ferromagnetic films (invited)

1982 ◽  
Vol 53 (3) ◽  
pp. 2078-2083 ◽  
Author(s):  
P. Grünberg ◽  
M. G. Cottam ◽  
W. Vach ◽  
C. Mayr ◽  
R. E. Camley
Keyword(s):  
Brillouin Scattering ◽  
Spin Waves ◽  
Scattering Of Light ◽  
Ferromagnetic Films

Second order magneto-optic effects in Brillouin scattering from spin waves in magnetic multilayers

2001 ◽  
Vol 89 (11) ◽  
pp. 6698-6700 ◽  
Author(s):  
L. Giovannini ◽  
R. Zivieri ◽  
F. Nizzoli ◽  
G. Gubbiotti ◽  
G. Carlotti
Keyword(s):  
Brillouin Scattering ◽  
Spin Waves ◽  
Magnetic Multilayers ◽  
Second Order ◽  
Magneto Optic

Collective Spin Waves in an Ultrathin Fe Wedge: A Brillouin Scattering Study

1996 ◽  
Vol 65 (5) ◽  
pp. 1469-1474 ◽  
Author(s):  
Akira Yoshihara ◽  
Yoshishige Suzuki ◽  
Toshikazu Katayama
Keyword(s):  
Brillouin Scattering ◽  
Spin Waves ◽  
Scattering Study

scholarly journals Irradiation-Induced Amorphization and Elastic Shear Instability in Intermetallic Compounds

1989 ◽  
Vol 157 ◽  
Author(s):  
J. Koike ◽  
P. R. Okamoto ◽  
L. E. Rehn ◽  
R. Bhadra ◽  
M. H. Grimsditch ◽  
...  
Keyword(s):  
Shear Modulus ◽  
Structural Information ◽  
Brillouin Scattering ◽  
Shear Instability ◽  
Crystalline Lattice ◽  
Tandem Accelerator ◽  
Voltage Electron ◽  
Elastic Shear ◽  
State Amorphization

ABSTRACTPreviously we reported a substantial (∼ 50 %) decrease in shear modulus prior to amorphization in Kr irradiated Zr3Al, and proposed that amorphization is triggered when the crystalline lattice becomes unstable against shear stress. In the present work, the relation between amorphization and shear elastic instability has been investigated in two additional compounds (FeTi and NiAl) during room temperature irradiation with 1.7-MeV Kr+. A shear modulus was measured using Brillouin scattering; structural information was obtained in situ in a high voltage electron microscope interfaced to a tandem accelerator.During irradiation of FeTi, chemical disordering and a large (∼40 %) decrease of shear modulus were observed, and an amorphous phase developed subsequently. In contrast, NiAl remained crystalline and chemically ordered during irradiation, and exhibited only a ∼ 10 % decrease in shear modulus. Hence, these two results provide further support that a shear instability triggers irradiation-induced amorphization. The shear instability mechanism may also apply to other solid-state amorphization techniques, e.g. hydrogen charging and mechanical deformation.

Brillouin Scattering from Spin Waves in an Ultrathin Fe Wedge

1995 ◽  
Vol 34 (S1) ◽  
pp. 217 ◽  
Author(s):  
Akira Yoshihara ◽  
Yoshishige Suzuki ◽  
Toshikazu Katayama
Keyword(s):  
Brillouin Scattering ◽  
Spin Waves

Standing Spin Waves Observed by Brillouin Scattering in Amorphous MetallicFe80B20Films

1979 ◽  
Vol 43 (10) ◽  
pp. 711-714 ◽  
Author(s):  
M. Grimsditch ◽  
A. Malozemoff ◽  
A. Brunsch
Keyword(s):  
Brillouin Scattering ◽  
Spin Waves

scholarly journals Fiber-integrated Brillouin microspectroscopy: Towards Brillouin endoscopy

2017 ◽  
Vol 10 (06) ◽  
pp. 1742002 ◽  
Author(s):  
Irina V. Kabakova ◽  
YuChen Xiang ◽  
Carl Paterson ◽  
Peter Török
Keyword(s):  
Optical Fiber ◽  
Brillouin Scattering ◽  
Region Of Interest ◽  
The Body ◽  
Propagation Model ◽  
Micromechanical Characterization ◽  
First Time

Brillouin imaging (BI) for micromechanical characterization of tissues and biomaterials is a fast-developing field of research with a strong potential for medical diagnosis of disease-modified tissues and cells. Although the principles of BI imply its compatibility with in vivo and in situ measurements, the integration of BI with a flexible catheter, capable of reaching the region of interest within the body, is yet to be reported. Here, for the first time, we experimentally investigate integration of the Brillouin spectroscope with standard optical fiber components to achieve a Brillouin endoscope. The performance of single-fiber and dual-fiber endoscopes are demonstrated and analyzed. We show that a major challenge in construction of Brillouin endoscopes is the strong backward Brillouin scattering in the optical fiber and we present a dual-fiber geometry as a possible solution. Measurements of Brillouin spectra in test liquids (water, ethanol and glycerol) are demonstrated using the dual-fiber endoscope and its performance is analyzed numerically with the help of a beam propagation model.

Brillouin scattering from collective spin waves in magnetic superlattices (invited)

1988 ◽  
Vol 63 (8) ◽  
pp. 3880-3884 ◽  
Author(s):  
B. Hillebrands ◽  
A. Boufelfel ◽  
C. M. Falco ◽  
P. Baumgart ◽  
G. Güntherodt ◽  
...  
Keyword(s):  
Brillouin Scattering ◽  
Spin Waves ◽  
Magnetic Superlattices
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