Optical Conductivity in the Copper Oxide Materials (1998)
Huang, Zhongbing, Feng, Shiping
The frequency- and temperature-dependent optical conductivity of the copper oxide materials in the underdoped and optimal doped regimes are studied within the t-J model. The conductivity spectrum...
Spin Dynamics for the t-J Model (1998)
Huang, Zhongbing, Feng, Shiping
The spin dynamics at the finite temperature for the t-J model in the underdoped and optimal doped regimes is studied within the fermion-spin theory. It is shown that the dynamical spin structure...
Universal Spin Response in Copper Oxide Materials (1998)
Feng, Shiping, Huang, Zhongbing
The spin response in the copper oxide materials at finite temperatures in the underdoped and optimal doped regimes is studied within the framework of the fermion-spin theory. The integrated dynamical...
Charge Dynamics from Copper Oxide Materials (1997)
Feng, Shiping, Huang, Zhongbing
The charge dynamics of the copper oxide materials in the underdoped and optimal doped regimes is studied within the framework of the fermion-spin theory. The conductivity spectrum shows the non-Drude...
Estimation of the Doping Dependence of Antiferromagnetism in the Copper Oxide Material (1997)
Feng, Shiping, Song, Yun, Huang, Zhongbing
Within the $t$-$J$ model, we study the doping dependence of antiferromagnetism in the copper oxide materials by considering quantum fluctuations of spinons in the random-phase-approximation. The...