Kazan Federal University Digital Repository

Theory of plane copper and oxygen nuclear spin-lattice relaxation rates in lightly doped La2-xSrxCuO4

Show simple item record

dc.contributor.author Larionov I.
dc.date.accessioned 2018-09-18T20:23:41Z
dc.date.available 2018-09-18T20:23:41Z
dc.date.issued 2006
dc.identifier.issn 1557-1939
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/139425
dc.description.abstract Using a Mori-Zwanzig projection operator procedure the relaxation function theory of doped two-dimensional S=1\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 CuO 4 compounds. © Springer Science+Business Media, LLC 2006.
dc.relation.ispartofseries Journal of Superconductivity and Novel Magnetism
dc.subject La2-xSrxCuO4
dc.subject NMR
dc.subject Relaxation function
dc.subject Spin-wave damping
dc.title Theory of plane copper and oxygen nuclear spin-lattice relaxation rates in lightly doped La2-xSrxCuO4
dc.type Article
dc.relation.ispartofseries-issue 1-2
dc.relation.ispartofseries-volume 19
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 23
dc.source.id SCOPUS15571939-2006-19-12-SID33845645491


Files in this item

This item appears in the following Collection(s)

  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

Show simple item record

Search DSpace


Advanced Search

Browse

My Account

Statistics