Convection Current Contributions to Spin Excitations

1984 ◽  
pp. 507-522
Author(s):  
G. E. Walker
Keyword(s):  
Convection Current ◽  
Spin Excitations

scholarly journals Evolution of spin excitations from bulk to monolayer FeSe

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jonathan Pelliciari ◽  
Seher Karakuzu ◽  
Qi Song ◽  
Riccardo Arpaia ◽  
Abhishek Nag ◽  
...  
Keyword(s):  
Quantum Monte Carlo ◽  
Spin Dynamics ◽  
Spin Fluctuations ◽  
Superconducting Transition ◽  
Pairing Mechanism ◽  
Range Magnetic Order ◽  
X Ray Scattering ◽  
Spin Excitations ◽  
Order Of Magnitude ◽  
Long Range Magnetic Order

AbstractIn ultrathin films of FeSe grown on SrTiO3 (FeSe/STO), the superconducting transition temperature Tc is increased by almost an order of magnitude, raising questions on the pairing mechanism. As in other superconductors, antiferromagnetic spin fluctuations have been proposed to mediate SC making it essential to study the evolution of the spin dynamics of FeSe from the bulk to the ultrathin limit. Here, we investigate the spin excitations in bulk and monolayer FeSe/STO using resonant inelastic x-ray scattering (RIXS) and quantum Monte Carlo (QMC) calculations. Despite the absence of long-range magnetic order, bulk FeSe displays dispersive magnetic excitations reminiscent of other Fe-pnictides. Conversely, the spin excitations in FeSe/STO are gapped, dispersionless, and significantly hardened relative to its bulk counterpart. By comparing our RIXS results with simulations of a bilayer Hubbard model, we connect the evolution of the spin excitations to the Fermiology of the two systems revealing a remarkable reconfiguration of spin excitations in FeSe/STO, essential to understand the role of spin fluctuations in the pairing mechanism.

scholarly journals Renormalization of spin excitations and Kondo effect in open-shell nanographenes

2021 ◽  
Vol 104 (7) ◽  
Author(s):  
David Jacob ◽  
Ricardo Ortiz ◽  
Joaquín Fernández-Rossier
Keyword(s):  
Kondo Effect ◽  
Open Shell ◽  
Spin Excitations

Temperature Rise Model of Drum Brake

2013 ◽  
Vol 419 ◽  
pp. 701-705
Author(s):  
Ying Shi Guo ◽  
Chang Wang
Keyword(s):  
Heat Exchange ◽  
Similarity Theory ◽  
Convection Current ◽  
Test Results ◽  
Working Process ◽  
Drum Brake ◽  
Analysis Theory ◽  
Dimension Analysis ◽  
Solution Equation ◽  
Current Heat

In order to analysis the temperature rising rules of vehicle, road conditions and vehicle running state were considered. Process of friction heat generation, radiation heat and convection current exchange during drum brake working process was researched, and temperature rising model of drum brake was established. Under the guidance of similarity theory and dimension analysis theory, convection current heat exchange test of drum brake was carried out, and the solution equation of convection current heat exchange was obtained. Real road test results shows that the temperature rising curves between calculations and test are basically identical and the maximum inaccuracy variables approximately 20%.

scholarly journals Spin excitations in the skyrmion hostCu2OSeO3

2016 ◽  
Vol 93 (5) ◽  
Author(s):  
G. S. Tucker ◽  
J. S. White ◽  
J. Romhányi ◽  
D. Szaller ◽  
I. Kézsmárki ◽  
...  
Keyword(s):  
Spin Excitations

scholarly journals Many-spin interactions and spin excitations inMn12

1999 ◽  
Vol 59 (10) ◽  
pp. 6919-6926 ◽  
Author(s):  
M. I. Katsnelson ◽  
V. V. Dobrovitski ◽  
B. N. Harmon
Keyword(s):  
Spin Interactions ◽  
Spin Excitations

Excitation and damping of spin excitations in ferromagnetic thin films

2002 ◽  
Vol 241 (1) ◽  
pp. 96-109 ◽  
Author(s):  
J. Wu ◽  
N.D. Hughes ◽  
J.R. Moore ◽  
R.J. Hicken
Keyword(s):  
Thin Films ◽  
Ferromagnetic Thin Films ◽  
Spin Excitations

Soliton spin excitations in a Heisenberg helimagnet

2009 ◽  
Vol 41 (4) ◽  
pp. 1842-1848 ◽  
Author(s):  
M. Daniel ◽  
J. Beula
Keyword(s):  
Spin Excitations

Spin excitations in a Hubbard chain

1983 ◽  
Vol 16 (27) ◽  
pp. 5293-5304 ◽  
Author(s):  
F Woynarovich
Keyword(s):  
Spin Excitations
Sign in / Sign up

Export Citation Format

Share Document