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Universal Spin Response in Copper Oxide Materials

Shiping Feng·Zhongbing Huang
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Abstract

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 spin structure factor is almost temperature independent, the integrated susceptibility shows the particularly universal behavior as $I(ω, T) \propto arctan [ a_{1}ω/T + a_{3}(ω/T)^{3}]$, and the spin-lattice relaxation time is weakly temperature dependent, which are consistent with experiments and numerical simulations.

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Shiping Feng, Zhongbing Huang. 2003-11-06. Universal Spin Response in Copper Oxide Materials. https://doi.org/10.1103/physrevb.57.10328

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