Short-range order in spin density wave antiferromagnets

1996 ◽  
Vol 46 (S4) ◽  
pp. 1839-1840
Author(s):  
Michel Avignon ◽  
Vladimir N. Men'shov ◽  
Victor V. Tugushev
Keyword(s):  
Spin Density ◽  
Short Range ◽  
Short Range Order ◽  
Density Wave ◽  
Spin Density Wave ◽  
Range Order

Short-range order in spin-density wave antiferromagnets

1996 ◽  
Vol 34 (5) ◽  
pp. 373-378 ◽  
Author(s):  
M Avignon ◽  
V Men'shov ◽  
V Tugushev
Keyword(s):  
Spin Density ◽  
Short Range ◽  
Short Range Order ◽  
Density Wave ◽  
Spin Density Wave ◽  
Range Order

ATOMIC SHORT RANGE ORDER AND SPIN DENSITY WAVE PROPAGATION IN CuMn

1993 ◽  
Vol 07 (01n03) ◽  
pp. 663-668
Author(s):  
J.W. CABLE ◽  
Y. TSUNODA
Keyword(s):  
Fermi Surface ◽  
Spin Density ◽  
Short Range ◽  
Short Range Order ◽  
Density Wave ◽  
Spin Density Wave ◽  
Range Order ◽  
Single Domain ◽  
Heat Treated Sample ◽  
High Degree

Neutron scattering studies of the atomic short range order (ASRO) and spin density waves (SDW) were carried out for a Cu-35% Mn sample with an unusually high degree of ASRO that develops mostly in a single tetragonal domain. The SDW peaks show a distinctly non-cubic distribution that is readily correlated with the ASRO and which corresponds to the propagation of SDW only in the c plane of the tetragonally based ASRO. The high degree of ASRO and single domain character of this carefully heat-treated sample produces an unusually stable SDW with a higher transition temperature and a larger correlation length than is observed for quenched alloys of the same Mn content. Since SDW stability depends on structural features in the conduction electron susceptibility and on flat, parallel sections of the Fermi surface, these observations suggest that the degree of ASRO and/or the presence of single domain ASRO influences the sharpness of the relevant Fermi surface features in these alloys.

Proximity-induced short-range spin density wave order in Fe/Cr multilayers

2001 ◽  
Vol 56 (1) ◽  
pp. 132-137 ◽  
Author(s):  
M Avignon ◽  
V Menshov ◽  
V Tugushev
Keyword(s):  
Spin Density ◽  
Short Range ◽  
Density Wave ◽  
Spin Density Wave

scholarly journals Spin-Density Correlations and Short-Range Order in Metals above the Curie Temperature

2018 ◽  
Vol 185 ◽  
pp. 11011 ◽  
Author(s):  
Nikolai B. Melnikov ◽  
Boris I. Reser ◽  
Georgii V. Paradezhenko
Keyword(s):  
Spin Density ◽  
Short Range ◽  
Short Range Order ◽  
Spin Fluctuation ◽  
Magnetic Moments ◽  
Range Order ◽  
Local Moments ◽  
Dynamic Spin ◽  
Theoretical Results ◽  
Density Correlations

In the dynamic spin-fluctuation theory, we calculate the effective and local magnetic moments and spatial spin-density correlator. Our theoretical results are demonstrated by the example of bcc Fe. The effective and local moments are found in good agrement with results of polarized neutron scattering experiment over a wide temperature range. The calculated short-range order is small (up to 5 Å) and slowly decreases with temperature

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