Spin-density wave in Cr without the nesting property of the Fermi surface

2006 ◽  
Vol 18 (9) ◽  
pp. 2717-2728 ◽  
Author(s):  
V M Uzdin ◽  
C Demangeat
Keyword(s):  
Fermi Surface ◽  
Spin Density ◽  
Density Wave ◽  
Spin Density Wave

scholarly journals Magnetotransport and Fermi-surface topology of β’’-(BEDT-TTF)2AuBr2: The effects of spin-density-wave formation

1994 ◽  
Vol 49 (6) ◽  
pp. 3934-3943 ◽  
Author(s):  
M. Doporto ◽  
J. Singleton ◽  
F. L. Pratt ◽  
J. Caulfield ◽  
W. Hayes ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Spin Density ◽  
Density Wave ◽  
Spin Density Wave ◽  
Wave Formation ◽  
Surface Topology ◽  
Fermi Surface Topology

scholarly journals Temperature-induced change in the Fermi surface topology in the spin density wave phase of Sr(Fe1−xCox)2As2

2014 ◽  
Vol 89 (12) ◽  
Author(s):  
Y.-X. Yang ◽  
Y. Gallais ◽  
F. Rullier-Albenque ◽  
M.-A. Méasson ◽  
M. Cazayous ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Spin Density ◽  
Density Wave ◽  
Spin Density Wave ◽  
Surface Topology ◽  
Wave Phase ◽  
Fermi Surface Topology

scholarly journals “Nodal Gap” Induced by the Incommensurate Diagonal Spin Density Modulation in Underdoped High-TcSuperconductors

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Tao Zhou ◽  
Yi Gao ◽  
Jian-Xin Zhu
Keyword(s):  
Fermi Surface ◽  
Spin Density ◽  
Energy Gap ◽  
Local Density ◽  
Density Wave ◽  
Spin Density Wave ◽  
Finite Energy ◽  
Pairing Symmetry ◽  
Nodal Lines ◽  
Density Modulation

Recently it was revealed that the whole Fermi surface is fully gapped for several families of underdoped cuprates. The existence of the finite energy gap along thed-wave nodal lines (nodal gap) contrasts the common understanding of thed-wave pairing symmetry, which challenges the present theories for the high-Tcsuperconductors. Here we propose that the incommensurate diagonal spin-density-wave order can account for the above experimental observation. The Fermi surface and the local density of states are also studied. Our results are in good agreement with many important experiments in high-Tcsuperconductors.

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.

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