Department of Physics, Loughborough University, Loughborough, UK.
J Phys Condens Matter. 2010 Oct 27;22(42):426004. doi: 10.1088/0953-8984/22/42/426004. Epub 2010 Oct 7.
The nonlinear normal state diamagnetism reported by Li et al (2010 Phys. Rev. B 81 054510) is shown to be incompatible with a claimed Cooper pairing and vortex liquid above the resistive critical temperature. However, it is perfectly compatible with the normal state Landau diamagnetism of real-space composed bosons, which provides a description of the nonlinear magnetization curves of the less anisotropic cuprates La-Sr-Cu-O (LSCO) and Y-Ba-Cu-O (YBCO) as well as for strongly anisotropic bismuth-based cuprates over the whole range of available magnetic fields.
李等人（2010 年《物理评论 B》81 卷 054510 号）报道的非线性正常态抗磁性与超导配对和涡旋液体在电阻临界温度以上是不兼容的。然而，它与实空间玻色子的正常态 Landau 抗磁性完全兼容，为非各向异性的铜氧化物 La-Sr-Cu-O（LSCO）和 Y-Ba-Cu-O（YBCO）以及强各向异性的铋基铜氧化物在整个可用磁场范围内的非线性磁化曲线提供了一种描述。
