The square lattice structure of CuO2 layers and the strongly correlated property of electrons indicate that the high-Tc superconductivity in cuprates can be described by an intrinsic SOM(5) coherent pairing theory in which a SUM(2)×UC(1) gauge symmetry is embedded. Besides the usual charge order, this SUM(2)×UC(1) gauge symmetry is also related to three new magnetic- charge orders-the local AF magnet, the local spin current, and the d-wave charge order. These magnetic-charge orders are completely determined by the SOM(5) coherent pairing state. The magnetic and charge fluctuations that characterize the low-energy excitations in cuprates are then described by this gauge symmetry. Thus, the coexistence of antiferromagnetism and superconductivity can be realized naturally in a unified framework.
|Number of pages||6|
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|Publication status||Published - 2002 Mar 1|
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics