Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/101869
Title: Phase diagrams of a 2D Ising spin-pseudospin model
Authors: Panov, Y. D.
Ulitko, V. A.
Budrin, K. S.
Chikov, A. A.
Moskvin, A. S.
Issue Date: 2019
Publisher: Elsevier B.V.
Citation: Phase diagrams of a 2D Ising spin-pseudospin model / Y. D. Panov, V. A. Ulitko, K. S. Budrin, et al. — DOI 10.1016/j.jmmm.2019.01.049 // Journal of Magnetism and Magnetic Materials. — 2019. — Vol. 477. — P. 162-166.
Abstract: We consider the competition of magnetic and charge ordering in high-Tc cuprates within the framework of the simplified static 2D spin-pseudospin model. This model is equivalent to the 2D dilute antiferromagnetic (AFM) Ising model with charged impurities. We present the mean-field results for the system under study and make a brief comparison with classical Monte Carlo (MC) calculations. Numerical simulations show that the cases of strong exchange and strong charge correlation differ qualitatively. For a strong exchange, the AFM phase is unstable with respect to the phase separation (PS) into the charge and spin subsystems, which behave like immiscible quantum liquids. An analytical expression was obtained for the PS temperature. © 2019 Elsevier B.V.
Keywords: CUPRATES
DILUTE ISING MODEL
SPIN AND CHARGE ORDERINGS
ANTIFERROMAGNETISM
COPPER COMPOUNDS
PHASE SEPARATION
ANALYTICAL EXPRESSIONS
ANTIFERROMAGNETICS
CHARGE CORRELATION
CHARGE ORDERING
CHARGED IMPURITY
CUPRATES
HIGH-TC CUPRATES
QUANTUM LIQUIDS
ISING MODEL
URI: http://hdl.handle.net/10995/101869
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85060094388
PURE ID: 8870836
a0f55707-4887-4fa1-bada-615e7e5a3e12
ISSN: 3048853
DOI: 10.1016/j.jmmm.2019.01.049
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

Files in This Item:
File Description SizeFormat 
2-s2.0-85060094388.pdf586,97 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.