Scaling of THz-conductivity at metal-insulator transition in doped manganites

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dc.creatorPimenov, A.
dc.creatorBiberacher, M.
dc.creatorIvannikov, D.
dc.creatorLoidl, A.
dc.creatorMukhin, A. A.
dc.creatorGoncharov, Yu. G.
dc.creatorBalbashov, A. M.
dc.date2006-05-05
dc.date.accessioned2026-07-07T07:08:47Z
dc.date.available2026-07-07T07:08:47Z
dc.descriptionMagnetic field and temperature dependence of the Terahertz conductivity and permittivity of the colossal magnetoresistance manganite Pr_{0.65}Ca_{0.28}Sr_{0.07}MnO_3 (PCSMO) is investigated approaching the metal-to-insulator transition (MIT) from the insulating side. In the charge-ordered state of PCSMO both conductivity and dielectric permittivity increase as function of magnetic field and temperature. Universal scaling relationships between the changes in permittivity and conductivity are observed in a broad range of temperatures and magnetic fields. Similar scaling is also seen in La_{1-x}Sr_xMnO_3 for different doping levels. The observed proportionality points towards the importance of pure ac-conductivity and phononic energy scale at MIT in manganites.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0605146
dc.identifierhttp://arxiv.org/abs/cond-mat/0605146
dc.identifierPhys. Rev. B 73, 220407(R) (2006)
dc.identifierdoi:10.1103/PhysRevB.73.220407
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/110834
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleScaling of THz-conductivity at metal-insulator transition in doped manganites
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