Freezing of spin dynamics in underdoped cuprates

Details Freezing of spin dynamics in underdoped cuprates Freezing of spin dynamics in underdoped cuprates

2009-02-03

arxiv.org/abs/0902.0546v1

Phys. Rev. B 79, 140504(R) (2009)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 3 figures

Scientific paper

The Mori's memory function approach to spin dynamics in doped antiferromagnetic insulator combined with the assumption of temperature independent static spin correlations and constant collective mode damping leads to w/T scaling in a broad range. The theory involving a nonuniversal scaling parameter is used to analyze recent inelastic neutron scattering results for underdoped cuprates. Adopting modified damping function also the emerging central peak in low-doped cuprates at low temperatures can be explained within the same framework.

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