Spin fluctuations and the

We analyze the spectral properties of a phenomenological model for a weakly doped two-dimensional antiferromagnet, in which the carriers move within one of the two sublattices where they were introduced. Such a constraint results in the free carrier spectra with the maxima at k=(± π/2 , ± π/2) obser...

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Main Authors: V.M. Loktev, V. Turkowski
Format: Article
Language:English
Published: Institute for Condensed Matter Physics 2008-09-01
Series:Condensed Matter Physics
Subjects:
Online Access:http://dx.doi.org/10.5488/CMP.11.3.483
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author V.M. Loktev
V. Turkowski
author_facet V.M. Loktev
V. Turkowski
author_sort V.M. Loktev
collection DOAJ
description We analyze the spectral properties of a phenomenological model for a weakly doped two-dimensional antiferromagnet, in which the carriers move within one of the two sublattices where they were introduced. Such a constraint results in the free carrier spectra with the maxima at k=(± π/2 , ± π/2) observed in some cuprates. We consider the spectral properties of the model by taking into account fluctuations of the spins in the antiferromagnetic background. We show that such fluctuations lead to a non-pole-like structure of the single-hole Green's function and these fluctuations can be responsible for some anomalous "strange metal" properties of underdoped cuprates in the nonsuperconducting regime.
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spelling doaj.art-001a30c53a0d433fbaac25270e5682232022-12-21T23:18:27ZengInstitute for Condensed Matter PhysicsCondensed Matter Physics1607-324X2008-09-01113483Spin fluctuations and theV.M. LoktevV. TurkowskiWe analyze the spectral properties of a phenomenological model for a weakly doped two-dimensional antiferromagnet, in which the carriers move within one of the two sublattices where they were introduced. Such a constraint results in the free carrier spectra with the maxima at k=(± π/2 , ± π/2) observed in some cuprates. We consider the spectral properties of the model by taking into account fluctuations of the spins in the antiferromagnetic background. We show that such fluctuations lead to a non-pole-like structure of the single-hole Green's function and these fluctuations can be responsible for some anomalous "strange metal" properties of underdoped cuprates in the nonsuperconducting regime.http://dx.doi.org/10.5488/CMP.11.3.483cuprate superconductorsunderdoped regimepseudogap
spellingShingle V.M. Loktev
V. Turkowski
Spin fluctuations and the
Condensed Matter Physics
cuprate superconductors
underdoped regime
pseudogap
title Spin fluctuations and the
title_full Spin fluctuations and the
title_fullStr Spin fluctuations and the
title_full_unstemmed Spin fluctuations and the
title_short Spin fluctuations and the
title_sort spin fluctuations and the
topic cuprate superconductors
underdoped regime
pseudogap
url http://dx.doi.org/10.5488/CMP.11.3.483
work_keys_str_mv AT vmloktev spinfluctuationsandthe
AT vturkowski spinfluctuationsandthe