Magnetic field induced incommensurate resonance in cuprate superconductors
نویسندگان
چکیده
منابع مشابه
Incommensurate magnetic response in cuprate perovskites
The incommensurate magnetic response of the normal-state cuprate perovskites is interpreted based on Mori’s memory function approach and the t-J model of Cu-O planes. In agreement with experiment the calculated dispersion of the susceptibility maxima has the shape of two parabolas with upward and downward branches which converge at the antiferromagnetic wave vector. The maxima are located at ( ...
متن کاملMagnetic Field induced Dimensional Crossover Phenomena in Cuprate Superconductors and their Implications
We discuss the occurrence of crossing points in the magnetization temperature (m,T ) plane within the framework of critical phenomena. It is shown that in a two-dimensional superconducting slab of thickness ds mz (δ) versus temperature T curves measured in different fields H = H (0, sin (δ) , cos (δ)) will cross at the critical temperature Tc of the slab. In contrast, in a 3D anisotropic bulk s...
متن کاملMagnetic Penetration Depth Measurements in Cuprate Superconductors
We examine recent results on measurements of the magnetic penetration depth in cuprate superconductors, with particular emphasis on our results obtained with the microstrip and parallel-plate resonator techniques. The results show that the magnetic penetration depth temperature dependence in YBa2Cu307-a is not consistent with a simple scaled weak-coupled BCS temperature dependence. We present t...
متن کاملDisorder-induced static antiferromagnetism in cuprate superconductors.
Using model calculations of a disordered d-wave superconductor with on-site Hubbard repulsion, we show how dopant disorder can stabilize novel states with antiferromagnetic order. We find that the critical strength of correlations or impurity potential necessary to create an ordered magnetic state in the presence of finite disorder is reduced compared to that required to create a single isolate...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Magnetism and Magnetic Materials
سال: 2009
ISSN: 0304-8853
DOI: 10.1016/j.jmmm.2008.08.106