Phase separation, effects of magnetic field and high pressure on charge ordering in y-Na0.5CoO2

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dc.creatorYang, H. X.
dc.creatorShi, Y. G.
dc.creatorNie, C. J.
dc.creatorWu, D.
dc.creatorYang, L. X.
dc.creatorDong, C.
dc.creatorYu, H. C.
dc.creatorZhang, H. R.
dc.creatorJin, C. Q.
dc.creatorLi, J. Q.
dc.date2004-09-12
dc.date2004-12-21
dc.date.accessioned2026-07-07T03:00:35Z
dc.date.available2026-07-07T03:00:35Z
dc.descriptionTransmission electron microscopy observations reveal the presence of complex superstructures and remarkable phase separation in association with Na-ordering phenomenon in y-Na0.5CoO2. Resistivity and magnetization measurements indicate that three phase transitions at the temperatures of 25 K, 53 K and 90 K respectively appear commonly in y-Na0.5CoO2 samples. Under a high pressure up to 10 Kbar, the low-temperature transport properties show certain changes below the charge order transition; under an applied magnetic field of 7 Tesla, phase transitions at around 25 K and 53 K, proposed fundamentally in connection with alternations of magnetic structure and charge ordering maintain almost unchanged.
dc.description17 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0409308
dc.identifierhttp://arxiv.org/abs/cond-mat/0409308
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24848
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titlePhase separation, effects of magnetic field and high pressure on charge ordering in y-Na0.5CoO2
dc.typetext

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