High-energy magnetic excitations and anomalous spin-wave damping in FeGe2

2000 ◽  
Vol 12 (39) ◽  
pp. 8487-8493 ◽  
Author(s):  
C P Adams ◽  
T E Mason ◽  
E Fawcett ◽  
A Z Menshikov ◽  
C D Frost ◽  
...  
Keyword(s):  
Spin Wave ◽  
High Energy ◽  
Wave Damping ◽  
Magnetic Excitations

HIGH ENERGY MAGNETIC EXCITATIONS IN SINGLE DOMAIN HOMOGENEOUS ANTIFERROMAGNETIC γ-Mn(18%Cu) ALLOY AT 10 K

1993 ◽  
Vol 07 (01n03) ◽  
pp. 659-662
Author(s):  
K. MIKKE ◽  
T.M. HOLDEN ◽  
J.A. FERNANDEZ-BACA ◽  
E. FAWCETT ◽  
J. JANKOWSKA-KISIELIŃSKA
Keyword(s):  
Dispersion Relation ◽  
Spin Wave ◽  
Spin Waves ◽  
Wave Dispersion ◽  
High Energy ◽  
Single Domain ◽  
Magnetic Excitations ◽  
Cu Alloy ◽  
Spin Wave Dispersion

Measurements of spin waves in homogeneous antiferromagnetic single domain fct γ-Mn(18%Cu) alloy at 10 K were performed up to energies of 82.7 meV yielding v=224±3 meV Å, Eg=7.8±0.2 meV and damping parameters Γ0=2 meV and Γ1=101.4±2.4 meV Å. There is a evidence on the anisotropy of the spin wave dispersion relation.

scholarly journals Full Control of the Spin-Wave Damping in a Magnetic Insulator Using Spin-Orbit Torque

2014 ◽  
Vol 113 (19) ◽  
Author(s):  
A. Hamadeh ◽  
O. d’Allivy Kelly ◽  
C. Hahn ◽  
H. Meley ◽  
R. Bernard ◽  
...  
Keyword(s):  
Spin Wave ◽  
Spin Orbit ◽  
Wave Damping ◽  
Full Control ◽  
Magnetic Insulator

scholarly journals Neutron scattering study of the magnetic excitations in ferromagnetic iron at high energy transfers

1984 ◽  
Vol 55 (6) ◽  
pp. 1895-1897 ◽  
Author(s):  
C.‐K. Loong ◽  
J. M. Carpenter ◽  
J. W. Lynn ◽  
R. A. Robinson ◽  
H. A. Mook
Keyword(s):  
Neutron Scattering ◽  
High Energy ◽  
Magnetic Excitations ◽  
Energy Transfers ◽  
Scattering Study ◽  
Ferromagnetic Iron ◽  
Neutron Scattering Study

Spin-wave damping in ferromagnets in the ordered regime

1978 ◽  
Vol 17 (3) ◽  
pp. 1297-1301 ◽  
Author(s):  
T. L. Reinecke ◽  
R. B. Stinchcombe
Keyword(s):  
Spin Wave ◽  
Wave Damping

scholarly journals Possible interplay between a two phonon mode and high energy magnetic excitations in BiFeO3

2009 ◽  
Vol 67 (2) ◽  
pp. 209-212 ◽  
Author(s):  
M. Cazayous ◽  
A. Sacuto ◽  
D. Lebeugle ◽  
D. Colson
Keyword(s):  
Phonon Mode ◽  
High Energy ◽  
Magnetic Excitations

High-energy magnetic excitations in cuprate superconductors

2015 ◽  
Vol 29 (25n26) ◽  
pp. 1542001
Author(s):  
Lulin Kuang ◽  
Yu Lan ◽  
Huaisong Zhao ◽  
Shiping Feng
Keyword(s):  
Charge Carrier ◽  
Cuprate Superconductors ◽  
Parent Compound ◽  
High Energy ◽  
Magnetic Excitations ◽  
Self Energy ◽  
Spin Excitations ◽  
Dynamical Spin ◽  
Carrier Doping ◽  
Modest Effect

In this paper, the high-energy magnetic excitations in cuprate superconductors are studied based on the kinetic energy driven superconducting mechanism. The spin self-energy is evaluated explicitly in terms of the collective charge carrier modes in the particle–hole and particle–particle channels, and employed to calculate the dynamical spin structure factor. Our results show the existence of damped but well-defined dispersive spin excitations in the whole doping phase diagram. In particular, the charge carrier doping has a more modest effect on the high-energy spin excitations, and then the high-energy magnetic excitations retain roughly constant energy as a function of doping, with spectral weights and dispersion relations comparable to those found in the parent compound.

Spin-wave study of the magnetic excitations in sandwich structures coupled by bilinear and biquadratic interlayer exchange

1994 ◽  
Vol 49 (5) ◽  
pp. 3283-3293 ◽  
Author(s):  
Monica Macciò ◽  
Maria Gloria Pini ◽  
Paolo Politi ◽  
Angelo Rettori
Keyword(s):  
Spin Wave ◽  
Sandwich Structures ◽  
Magnetic Excitations ◽  
Interlayer Exchange

THE MAGNETISM OF METALLIC MANGANESE ALLOYS

1993 ◽  
Vol 07 (01n03) ◽  
pp. 644-650 ◽  
Author(s):  
T.M. HOLDEN ◽  
K. MIKKE ◽  
E. FAWCETT ◽  
J.A. FERNANDEZ-BACA
Keyword(s):  
Elastic Constant ◽  
Spin Wave ◽  
High Spin ◽  
Energy Gap ◽  
Theoretical Explanation ◽  
Magnetic Excitations ◽  
Wave Velocities ◽  
Manganese Alloys ◽  
Metallic Manganese ◽  
Manganese Copper

The magnetic excitations in antiferromagnetic manganese-copper and manganeseiron alloys are characterized by high spin-wave velocities, an energy gap at long wavelengths and wavelength dependent damping. There are strong elastic constant anomalies above TN as well as magnetoelastic distortions below TN. The theoretical explanation of these effects is reviewed.

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