Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/101708
Title: Continuous transformation between ferro and antiferro circular structures in J1-J2-J3 frustrated Heisenberg model
Authors: Valiulin, V. E.
Mikheyenkov, A. V.
Chtchelkatchev, N. M.
Barabanov, A. F.
Issue Date: 2019
Publisher: Institute of Physics Publishing
Citation: Continuous transformation between ferro and antiferro circular structures in J1-J2-J3 frustrated Heisenberg model / V. E. Valiulin, A. V. Mikheyenkov, N. M. Chtchelkatchev, et al. — DOI 10.1088/1361-648X/ab35cc // Journal of Physics Condensed Matter. — 2019. — Vol. 31. — Iss. 45. — 455801.
Abstract: Frustrated magnetic compounds, in particular low-dimensional, are topical research due to the persistent uncovering of novel nontrivial quantum states and potential applications. The problem of this field is that many important results are scattered over the localized parameter ranges, while areas in between still contain hidden interesting effects. We consider the J1-J2-J3 Heisenberg model on the square lattice and use the spherically symmetric selfconsistent approach for spin spin Green s functions in quasielastic approximation. We have found a new local order in spin liquids: antiferromagnetic isotropical helices. On the structure factor we see circular concentric dispersionless structures, while on any radial direction the excitation spectrum has roton minima. That implies nontrivial magnetic excitations and consequences in magnetic susceptibility and thermodynamics. On the J1-J2-J3 exchange parameters globe we discover a crossover between antiferromagnetic-like local order and ferromagnetic-like; we find stripe-like order in the middle. In fact, our quasielastic approach allows investigation of the whole J1-J2-J3 globe. © 2019 Institute of Physics Publishing. All rights reserved.
Keywords: FRUSTRATION
HEISENBERG MODEL
MAGNETIC MATERIALS
PHASE TRANSITION
SPIN HELICES
ANTIFERROMAGNETISM
MAGNETIC MATERIALS
MAGNETIC SUSCEPTIBILITY
QUANTUM THEORY
THERMODYNAMICS
CONTINUOUS TRANSFORMATIONS
EXCITATION SPECTRUM
FRUSTRATED HEISENBERG MODEL
FRUSTRATION
HEISENBERG MODELS
MAGNETIC EXCITATIONS
SELF-CONSISTENT APPROACH
SPIN HELICES
PHASE TRANSITIONS
URI: http://hdl.handle.net/10995/101708
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85071713101
PURE ID: 10489869
ISSN: 9538984
DOI: 10.1088/1361-648X/ab35cc
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

Files in This Item:
File Description SizeFormat 
2-s2.0-85071713101.pdf7,05 MBAdobe PDFView/Open


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