Crossover from one-dimensional copper-oxygen chains to two-dimensional ladders charge transport in (La,Y)y(Sr,Ca)14-yCu24O41

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dc.creatorIvek, T.
dc.creatorVuletic, T.
dc.creatorKorin-Hamzic, B.
dc.creatorMilat, O.
dc.creatorTomic, S.
dc.creatorGorshunov, B.
dc.creatorDressel, M.
dc.creatorAkimitsu, J.
dc.creatorSugiyama, Y.
dc.creatorHess, C.
dc.creatorBuechner, B.
dc.date2008-06-02
dc.date2008-09-08
dc.date.accessioned2026-07-07T10:00:54Z
dc.date.available2026-07-07T10:00:54Z
dc.descriptionThe charge transport in the copper-oxygen chain/ladder layers of (La,Y)y(Sr,Ca)14-yCu24O41 is investigated along two crystallographic directions in the temperature range from 50 K to 700 K and for doping levels from y ~= 6 (number of holes nh < 1) to y = 0 (number of holes nh = 6). A crossover from a one-dimensional hopping transport along the chains for y >= 3 to a quasi-two-dimensional charge conduction in the ladder planes for y <~ 2 is observed. This is attributed to a partial hole transfer from chains to ladders when the hole doping exceeds nh ~= 4 and approaches fully doped value n_h = 6. For y <~ 2 a weak dielectric relaxation at radio-frequencies and a microwave mode are detected, which might be recognized as signatures of a charge-density wave phase developed at short length scales in the ladders planes.
dc.description8 pages, 7 figures, 1 table; submitted to Phys. Rev. B
dc.identifierhttps://arxiv.org/abs/0806.0254
dc.identifierhttp://arxiv.org/abs/0806.0254
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/168466
dc.subjectStrongly Correlated Electrons
dc.titleCrossover from one-dimensional copper-oxygen chains to two-dimensional ladders charge transport in (La,Y)y(Sr,Ca)14-yCu24O41
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