Quantum phases of the planar antiferromagnetic J₁-J₂-J₃ Heisenberg model

We present results for a complementary analysis of the frustrated planar J₁-J₂-J₃ spin-1/2 quantum antiferromagnet (AFM). Using dynamical functional renormalization group, high-order-coupled cluster calculations, and series expansion based on the flow equation method, we have calculated generalized...

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Autores principales: Reuther, Johannes, Wölfle, Peter, Darradi, Rachid, Brenig, Wolfram, Arlego, Marcelo José Fabián, Richter, Johannes
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/126397
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id I19-R120-10915-126397
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Physics
antiferromagnetism
dynamical functional renormalization group
high-order-coupled cluster calculations
series expansion
generalized momentum-resolved susceptibilities
ground-state energy
magnetic-order parameter
elementary excitation gap
spellingShingle Ciencias Exactas
Física
Physics
antiferromagnetism
dynamical functional renormalization group
high-order-coupled cluster calculations
series expansion
generalized momentum-resolved susceptibilities
ground-state energy
magnetic-order parameter
elementary excitation gap
Reuther, Johannes
Wölfle, Peter
Darradi, Rachid
Brenig, Wolfram
Arlego, Marcelo José Fabián
Richter, Johannes
Quantum phases of the planar antiferromagnetic J₁-J₂-J₃ Heisenberg model
topic_facet Ciencias Exactas
Física
Physics
antiferromagnetism
dynamical functional renormalization group
high-order-coupled cluster calculations
series expansion
generalized momentum-resolved susceptibilities
ground-state energy
magnetic-order parameter
elementary excitation gap
description We present results for a complementary analysis of the frustrated planar J₁-J₂-J₃ spin-1/2 quantum antiferromagnet (AFM). Using dynamical functional renormalization group, high-order-coupled cluster calculations, and series expansion based on the flow equation method, we have calculated generalized momentum-resolved susceptibilities, the ground-state energy, the magnetic-order parameter, and the elementary excitation gap. From these, we determine a quantum phase diagram that shows a large window of a quantum paramagnetic (QP) phase situated among the Néel, spiral, and collinear states, which are present already in the classical J₁-J₂-J₃ AFM. Our findings are consistent with substantial plaquette correlations in the QP phase. The extent of the QP region is found to be in satisfying agreement between the three different approaches we have employed.
format Articulo
Articulo
author Reuther, Johannes
Wölfle, Peter
Darradi, Rachid
Brenig, Wolfram
Arlego, Marcelo José Fabián
Richter, Johannes
author_facet Reuther, Johannes
Wölfle, Peter
Darradi, Rachid
Brenig, Wolfram
Arlego, Marcelo José Fabián
Richter, Johannes
author_sort Reuther, Johannes
title Quantum phases of the planar antiferromagnetic J₁-J₂-J₃ Heisenberg model
title_short Quantum phases of the planar antiferromagnetic J₁-J₂-J₃ Heisenberg model
title_full Quantum phases of the planar antiferromagnetic J₁-J₂-J₃ Heisenberg model
title_fullStr Quantum phases of the planar antiferromagnetic J₁-J₂-J₃ Heisenberg model
title_full_unstemmed Quantum phases of the planar antiferromagnetic J₁-J₂-J₃ Heisenberg model
title_sort quantum phases of the planar antiferromagnetic j₁-j₂-j₃ heisenberg model
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/126397
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