Competition between intermediate plaquette phases in SrCu2(BO3)2 under pressure

Building on the growing evidence based on NMR, magnetization, neutron scattering, electron spin resonance, and specific heat that, under pressure, SrCu2(BO3)2 has an intermediate phase between the dimer and the Néel phase, we study the competition between two candidate phases in the context of a min...

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Veröffentlicht in:	Physical review. B 2019-10, Vol.100 (14)
Hauptverfasser:	Boos, C, Crone, S P G, Niesen, I A, Corboz, P, Schmidt, K P, Mila, F
Format:	Artikel
Sprache:	eng
Schlagworte:	Competition Couplings Dimers Electron paramagnetic resonance Electron spin Neutron scattering Neutrons NMR Nuclear magnetic resonance Resonance scattering Spin resonance Unit cell
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container_title	Physical review. B
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creator	Boos, C Crone, S P G Niesen, I A Corboz, P Schmidt, K P Mila, F
description	Building on the growing evidence based on NMR, magnetization, neutron scattering, electron spin resonance, and specific heat that, under pressure, SrCu2(BO3)2 has an intermediate phase between the dimer and the Néel phase, we study the competition between two candidate phases in the context of a minimal model that includes two types of intra- and interdimer interactions without enlarging the unit cell. We show that the empty plaquette phase of the Shastry-Sutherland model is quickly replaced by a quasi-one-dimensional full plaquette phase when intra- and/or interdimer couplings take different values, and that this full plaquette phase is in much better agreement with available experimental data than the empty plaquette one.
doi_str_mv	10.1103/PhysRevB.100.140413
format	Article
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We show that the empty plaquette phase of the Shastry-Sutherland model is quickly replaced by a quasi-one-dimensional full plaquette phase when intra- and/or interdimer couplings take different values, and that this full plaquette phase is in much better agreement with available experimental data than the empty plaquette one.</description><identifier>ISSN: 2469-9950</identifier><identifier>EISSN: 2469-9969</identifier><identifier>DOI: 10.1103/PhysRevB.100.140413</identifier><language>eng</language><publisher>College Park: American Physical Society</publisher><subject>Competition ; Couplings ; Dimers ; Electron paramagnetic resonance ; Electron spin ; Neutron scattering ; Neutrons ; NMR ; Nuclear magnetic resonance ; Resonance scattering ; Spin resonance ; Unit cell</subject><ispartof>Physical review. 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subjects	Competition Couplings Dimers Electron paramagnetic resonance Electron spin Neutron scattering Neutrons NMR Nuclear magnetic resonance Resonance scattering Spin resonance Unit cell
title	Competition between intermediate plaquette phases in SrCu2(BO3)2 under pressure
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