caa a22 4500 467884501 CHVBK 20180406152730.0 cr unu---uuuuu 170328e20060201xx s 000 0 eng 10.1007/s10948-005-0087-x doi (NATIONALLICENCE)springer-10.1007/s10948-005-0087-x Larionov I. MRS Laboratory, Department of Physics, Kazan State University, 420008, Kazan, Russia aut Theory of Plane Copper and Oxygen Nuclear Spin-Lattice Relaxation Rates in Lightly Doped La2− x Sr x CuO4 [Elektronische Daten] [I. Larionov] Using a Mori-Zwanzig projection operator procedure the relaxation function theory of doped two-dimensional $$S = {\textstyle{1 \over 2}}$$ Heisenberg antiferromagnetic (AF) system in the paramagnetic state is presented taking into account the hole subsystem as well as both the electron and AF correlations. At low temperatures the main contribution to the nuclear spin-lattice relaxation rate, 63(1/T 1), of plane 63Cu, arises from the AF fluctuations, and 17(1/T 1), of plane 17O, has the contributions from the wave vectors in the vicinity of (π,π) and small q ∼ 0. The effects of thermal spin-wave damping Γ q on 17(1/T 1) in lightly doped regime are investigated, suggesting either a polynomial of up to third order (not simply (T/J)3) or exponential temperature dependence of Γ q at low temperatures. It is shown that the theory is able to explain the main features of experimental data on temperature and doping dependence of 17,63(1/T 1) in the paramagnetic state of La2− x Sr x CuO4 compounds. Springer Science+Business Media, Inc., 2006 La2− x Sr x CuO4 nationallicence NMR nationallicence relaxation function nationallicence spin-wave damping nationallicence Journal of Superconductivity and Novel Magnetism Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 19/1-2(2006-02-01), 23-27 1557-1939 19:1-2<23 2006 19 10948 https://doi.org/10.1007/s10948-005-0087-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-005-0087-x text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Larionov I. MRS Laboratory, Department of Physics, Kazan State University, 420008, Kazan, Russia aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 19/1-2(2006-02-01), 23-27 1557-1939 19:1-2<23 2006 19 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer