SPIN DYNAMICS IN BILAYER CUPRATE SUPERCONDUCTORS

2012 ◽  
Vol 26 (20) ◽  
pp. 1250129
Author(s):  
YU LAN ◽  
JIHONG QIN
Keyword(s):  
Magnetic Resonance ◽  
Kinetic Energy ◽  
Cuprate Superconductors ◽  
Spin Dynamics ◽  
Resonance Energy ◽  
Magnetic Scattering ◽  
Doping Dependence ◽  
Dynamical Spin ◽  
Spin Response

Within the kinetic energy driven superconducting mechanism, the dynamical spin response of the bilayer cuprate superconductors is studied. It is shown that there are two nondegenerate magnetic modes with odd and even symmetries, respectively, due to the bilayer interaction in the bilayer cuprate superconductors. Although the magnetic scattering in both odd and even symmetries shows an hour-glass-shaped dispersion, the commensurate magnetic resonance energy in the odd symmetry has a domelike shape of the doping dependence, while the commensurate magnetic resonance energy in the even symmetry decreases with increasing doping.

scholarly journals INTERPLAY BETWEEN SINGLE PARTICLE COHERENCE AND KINETIC ENERGY DRIVEN SUPERCONDUCTIVITY IN DOPED CUPRATES

2004 ◽  
Vol 18 (17) ◽  
pp. 895-907 ◽  
Author(s):  
TIANXING MA ◽  
HUAIMING GUO ◽  
SHIPING FENG
Keyword(s):  
Transition Temperature ◽  
Kinetic Energy ◽  
Single Particle ◽  
Superconducting Transition Temperature ◽  
Spin Structure ◽  
Cuprate Superconductors ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Superconducting Transition ◽  
Dynamical Spin

Within the kinetic energy driven superconducting mechanism, the interplay between the single particle coherence and superconducting instability in doped cuprates is studied. The superconducting transition temperature increases with increasing doping in the underdoped regime, and reaches a maximum in the optimal doping, then decreases in the overdoped regime, however, the values of this superconducting transition temperature in the whole superconducting range are suppressed to low temperature due to the single particle coherence. Within this superconducting mechanism, we calculate the dynamical spin structure factor of cuprate superconductors, and reproduce all main features of inelastic neutron scattering experiments in the superconducting-state.

scholarly journals Optimal Experiment Design for Magnetic Resonance Fingerprinting: Cramér-Rao Bound Meets Spin Dynamics

2019 ◽  
Vol 38 (3) ◽  
pp. 844-861 ◽  
Author(s):  
Bo Zhao ◽  
Justin P. Haldar ◽  
Congyu Liao ◽  
Dan Ma ◽  
Yun Jiang ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Spin Dynamics ◽  
Experiment Design ◽  
Optimal Experiment Design ◽  
Optimal Experiment ◽  
Cramer Rao Bound
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