Floating-zone growth and property characterizations of high-quality La2-xSrxCuO4 single crystals

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dc.creatorShen, Xiaoli
dc.creatorLi, Zhengcai
dc.creatorShen, Caixia
dc.creatorLu, Wei
dc.creatorDong, Xiaoli
dc.creatorZhou*, Fang
dc.creatorZhao, Zhongxian
dc.date2009-01-22
dc.date.accessioned2026-07-07T12:32:54Z
dc.date.available2026-07-07T12:32:54Z
dc.descriptionWe have grown underdoped (x = 0.11, 0.12) and optimally doped (x = 0.16) La2-xSrxCuO4 (LSCO) crystals by traveling-solvent floating-zone (TSFZ) technique. In order to obtain LSCO single crystals of high quality, we have made much effort to optimize the preparation procedures. For example, we have adopted sol-gel route to prepare highly fine and homogeneous LSCO precursor powder, and used quite slow growth rate. The sizable grown crystal ingots are typically about 6.6 mm in diameter and 100 mm in length, and no impurity phases were detected. The high quality of grown crystals has been verified by double-crystal x-ray rocking curves, with full-width-at-half-maximum (FWHM) being only 113 ~ 150 arcseconds (or 0.03 deg - 0.04 deg), which are the best data reported so far for LSCO crystals. The superconducting critical temperatures (TC's) of the cuprate crystals are 30 K for x = 0.11, 31 K for x = 0.12 and 38.5 K for x = 0.16 samples according to magnetic measurements.
dc.description16 pages, 5 figures + 1 table,
dc.identifierhttps://arxiv.org/abs/0901.3397
dc.identifierhttp://arxiv.org/abs/0901.3397
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/216944
dc.subjectSuperconductivity
dc.subjectMaterials Science
dc.titleFloating-zone growth and property characterizations of high-quality La2-xSrxCuO4 single crystals
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