Chemical disorder in a frustrated J1/J2 quantum spin chain material

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dc.contributor.authorRule, KCen_AU
dc.contributor.authorMole, RAen_AU
dc.contributor.authorZanardo, Jen_AU
dc.contributor.authorKrause-Heuer, AMen_AU
dc.contributor.authorDarwish, TAen_AU
dc.contributor.authorLerch, MLFen_AU
dc.date.accessioned2022-08-29T23:34:07Zen_AU
dc.date.available2022-08-29T23:34:07Zen_AU
dc.date.issued2018-01-30en_AU
dc.date.statistics2021-10-11en_AU
dc.description.abstractRecently a new one-dimensional (1D) quantum spin chain system has been synthesised: catena-dichloro(2-Cl-3Mpy)copper(II), [where 2-Cl-3Mpy=2-chloro-3-methylpyridine]. We shall refer to this compound as cd-Cu. Preliminary calculations and bulk magnetic property measurements indicate that this system does not undergo magnetic ordering down to 1.8K and is a prime candidate for investigating frustration in a J1/J2 system (where the nearest neighbour interactions, J1, are ferromagnetic and the next nearest neighbour interactions, J2, are antiferromagnetic) [1]. Calculations predicted 3 possible magnetic interaction strengths for J1 below 6meV depending on the orientation of the ligand [2]. For one of the predicted J1values, the existence of a quantum critical point is implied. A deuterated sample of cd-Cu was produced at the National Deuteration Facility and the excitations measured using the PELICAN TOF spectrometer. Scattering was weak from this sample, but indicated the most likely scenario involves an average of the 3 possible magnetic excitations in this material, rather than the random array of exchange interactions as predicted by Herringer et al., [2]. This may indicate the possibility of tuning the chemical structure to favour a system which may exhibit a quantum critical point.en_AU
dc.identifier.citationRule, K. C., Mole, R. A., Zanardo, J., Krause-Heuer, A., Darwish, T., & Lerch, M. (2018). Chemical disorder in a frustrated J1/J2 quantum spin chain material. Paper presented to the 42nd Annual Condensed Matter and Materials Meeting Charles Sturt University, Wagga Wagga, NSW 30th January – 2nd February, 2018, (pp. 31). Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2018/Wagga_2018_Conference_Handbook.pdfen_AU
dc.identifier.conferenceenddate2 February 2018en_AU
dc.identifier.conferencename42nd Annual Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceWagga Wagga, NSWen_AU
dc.identifier.conferencestartdate30 January 2018en_AU
dc.identifier.pagination31en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2018/Wagga_2018_Conference_Handbook.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13663en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectSpinen_AU
dc.subjectCopperen_AU
dc.subjectCalculation methodsen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectOrder-disorder transformationsen_AU
dc.subjectFerromagnetic materialsen_AU
dc.subjectInteractionsen_AU
dc.subjectDeuterationen_AU
dc.subjectSpectrometersen_AU
dc.titleChemical disorder in a frustrated J1/J2 quantum spin chain materialen_AU
dc.typeConference Presentationen_AU
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