Freezing of spin dynamics and omega/T scaling in underdoped cuprates

Details Freezing of spin dynamics and omega/T scaling in underdoped cuprates Freezing of spin dynamics and omega/T scaling in underdoped cuprates

2010-01-06

arxiv.org/abs/1001.0837v1

Journal of Physics: Conference Series 200, 012179 (2010)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 5 figures; to appear in Journal of Physics: Conference Series (ICM2009 Conference, Karlsruhe, Germany)

Scientific paper

The 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 omega/T scaling in a broad range. The theory involving a non universal 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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