TY - JOUR
T1 - Fabrication of Y-Ba-Cu-O micro-particles by excimer laser processing
AU - Luo, G. P.
AU - Chen, C. L.
AU - Sun, Y. Y.
AU - Chu, C. W.
N1 - Funding Information:
Fig. 3-d shows the observationo f 250nm diameteorf sphericaYl -B-C-O particleisn the film with thicknesos f 200-250n m afterb eingi rradiated by 20 pulsesa t 0.1 J/cm2 . The Y-B-C-O particles have smooth circle surfaces,a nd the distance betweenth osep articlesis about0 .5-1urn.C ross-section( Fig. 3-c ) showst hatt heY -B-C-O particles haves pherical-likseh apesa, nds toodo n Si substrate separatelyT.h is shapeis differenftr omt hatf ormed in thickerf ilms, whereo nly half-sphericaslh apes canb eobserved. This work was partiallys upportebdy the NSF MRSEC researchp rogramo f No. DAM-9632667, andt hes tateo f TexasC entefro r Superconductivity at Universityo f HoustonO. neof thea uthor(sG .P.L.) would like to acknowledgteh e supportf rom the National ScienceF oundationo f China under the contracntu mbeor f 19804006.
PY - 2000/11
Y1 - 2000/11
N2 - Periodical distribution of Y-Ba-Cu-O particles were obtained on amorphous Y-Ba-Cu-O films with 5-20 laser pulses in the energy density of 0.1 J/cm2. X-ray diffraction patterns showed that the particles were polycrystalline. Scanning electron microscopy studies revealed that half-spherical or even spherical particles were formed on the films. The diameters of the Y-Ba-Cu-O particles were found to be dependent on film thickness, and sub-micro Y-Ba-Cu-O spherical particles with diameters of 250 nm have been obtained in 200 nm-thick Y-Ba-Cu-O films.
AB - Periodical distribution of Y-Ba-Cu-O particles were obtained on amorphous Y-Ba-Cu-O films with 5-20 laser pulses in the energy density of 0.1 J/cm2. X-ray diffraction patterns showed that the particles were polycrystalline. Scanning electron microscopy studies revealed that half-spherical or even spherical particles were formed on the films. The diameters of the Y-Ba-Cu-O particles were found to be dependent on film thickness, and sub-micro Y-Ba-Cu-O spherical particles with diameters of 250 nm have been obtained in 200 nm-thick Y-Ba-Cu-O films.
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U2 - 10.1016/S0921-4534(00)01072-8
DO - 10.1016/S0921-4534(00)01072-8
M3 - Conference article
AN - SCOPUS:0342962019
VL - 341-348 (IV)
SP - 2343
EP - 2344
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
T2 - International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI
Y2 - 20 February 2000 through 25 February 2000
ER -