Inelastic neutron scattering as a means for determining the magnetic exchange interactions in the frustrated quantum spin chain, Linarite

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dc.contributor.authorRule, KCen_AU
dc.contributor.authorWillenberg, Ben_AU
dc.contributor.authorMole, RAen_AU
dc.contributor.authorWolter-Giraud, Aen_AU
dc.contributor.authorTennant, Aen_AU
dc.contributor.authorEhlers, Gen_AU
dc.contributor.authorStuder, AJen_AU
dc.contributor.authorGardner, Jen_AU
dc.contributor.authorSuellow, Sen_AU
dc.date.accessioned2022-08-25T06:43:41Zen_AU
dc.date.available2022-08-25T06:43:41Zen_AU
dc.date.issued2021-02-02en_AU
dc.date.statistics2021-09-22en_AU
dc.description.abstractOne of the simplest models exhibiting one dimensional (1D) frustrated quantum interactions is the so called J1-J2 model. In this model competing ferromagnetic nearest-neighbour interactions (J1 > 0) and antiferromagnetic next-nearest-neighbours (J2 < 0) can give rise to novel phenomena such as multiferroicity for spiral spin states. Linarite, PbCuSO4(OH)2 is a natural mineral ideally suited to the study of frustration in J1-J2 systems due to an accessible saturation field and the availability of large single crystals well suited to neutron investigations. In this material the Cu2+ ions form spin S = 1/2 chains along the b direction with dominant nearest-neighbour FM interactions and a weaker next-nearest-neighbour AFM coupling, resulting in a magnetically frustrated topology. We present a neutron scattering study of linarite revealing a helical magnetic ground state structure with an incommensurate propagation vector of (0, 0.186, ½) below TN = 2.8K in zero magnetic field. From detailed measurements in magnetic fields up to 12 T (B || b), a very rich magnetic phase diagram will be presented. In particular we will present new inelastic neutron scattering data and compare this with theoretical modelling of the spin Hamiltonian. These theoretical calculations imply that linarite possesses an xyz exchange anisotropy. Our data establish linarite as a model compound of the frustrated one-dimensional spin chain, with ferromagnetic nearest-neighbour and antiferromagnetic next-nearest-neighbour interactions.en_AU
dc.identifier.citationRule, K., Willenberg, B., Mole, R., Wolter-Giraud, A., Tennant, A., Studer, A., Gardner, J., & Suellow, S. (2016). Inelastic neutron scattering as a means for determining the magnetic exchange interactions in the frustrated quantum spin chain, Linarite. Paper presented to the 40th Annual Condensed Matter and Materials Meeting Charles Sturt University, Wagga Wagga, NSW, 2nd February – 5th February, 2016, (pp. 49). Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2016/Wagga_2016_Conference_Handbook.pdfen_AU
dc.identifier.conferenceenddate5 February 2016en_AU
dc.identifier.conferencename40th Annual Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceWagga Wagga, NSWen_AU
dc.identifier.conferencestartdate2 February 2016en_AU
dc.identifier.isbn978-0-646-96433-1en_AU
dc.identifier.otherTN4en_AU
dc.identifier.pagination49en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2016/Wagga_2016_Conference_Handbook.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13613en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectAngular momentumen_AU
dc.subjectBaryonsen_AU
dc.subjectConfigurationen_AU
dc.subjectElementary particlesen_AU
dc.subjectEnergy levelsen_AU
dc.subjectFermionsen_AU
dc.subjectHadronsen_AU
dc.subjectMagnetic materialsen_AU
dc.subjectMaterialsen_AU
dc.subjectNucleonsen_AU
dc.subjectParticle propertiesen_AU
dc.subjectPhysical propertiesen_AU
dc.subjectScatteringen_AU
dc.titleInelastic neutron scattering as a means for determining the magnetic exchange interactions in the frustrated quantum spin chain, Linariteen_AU
dc.typeConference Abstracten_AU
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