Field-induced length changes in the spin-liquid candidate κ-(BEDT-TTF) 2Cu 2(CN) 3

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorManna, Rudra Sekhar
dc.creatorde Souza, Mariano
dc.creatorSchlueter, John A.
dc.creatorLang, Michael
dc.date2014-05-27T11:26:28Z
dc.date2016-10-25T18:37:03Z
dc.date2014-05-27T11:26:28Z
dc.date2016-10-25T18:37:03Z
dc.date2012-05-01
dc.date.accessioned2017-04-06T01:58:26Z
dc.date.available2017-04-06T01:58:26Z
dc.identifierPhysica Status Solidi (C) Current Topics in Solid State Physics, v. 9, n. 5, p. 1180-1182, 2012.
dc.identifier1862-6351
dc.identifier1610-1642
dc.identifierhttp://hdl.handle.net/11449/73299
dc.identifierhttp://acervodigital.unesp.br/handle/11449/73299
dc.identifier10.1002/pssc.201100643
dc.identifier2-s2.0-84860685261
dc.identifierhttp://dx.doi.org/10.1002/pssc.201100643
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/894116
dc.descriptionMeasurements of the coefficient of thermal expansion on the spin-liquid candidate κ-(BEDT-TTF) 2Cu 2(CN) 3 have revealed distinct and strongly anisotropic lattice effects around 6 K - a possible spin liquid instability. In order to study the effects of a magnetic field on the low-temperature spin-liquid state, dilatometric measurements have been conducted both as a function of temperature at B = const. and as a function of field at T = const. While the 6 K anomaly is found to be insensitive to magnetic fields B ≤ 10 T, the maximum field applied, surprisingly strong B -induced effects are observed for magnetic fields applied along the in-plane b-axis. Above a threshold field of 0.5 T < B c ≤ 1 T, a jump-like anomaly is observed in the b-axis lattice parameter. This anomaly, which is located at 8.7 K at B = 1 T, grows in size and shifts to lower temperatures with increasing the magnetic field. Although the anomaly bears resemblance to a first-order phase transition, the lack of hysteresis suggests otherwise. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
dc.languageeng
dc.relationPhysica Status Solidi (C) Current Topics in Solid State Physics
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectPhase transition
dc.subjectQuantum magnetism
dc.subjectSpin liquid
dc.subjectThermodynamic measurements
dc.subjectAnisotropic lattices
dc.subjectBEDT-TTF
dc.subjectDilatometric measurements
dc.subjectField-induced
dc.subjectFirst-order phase transitions
dc.subjectLow temperatures
dc.subjectSpin liquids
dc.subjectSpin-liquid
dc.subjectThreshold fields
dc.subjectLiquids
dc.subjectPhase transitions
dc.subjectMagnetic fields
dc.titleField-induced length changes in the spin-liquid candidate κ-(BEDT-TTF) 2Cu 2(CN) 3
dc.typeOtro


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