Aurum Doped And In-situ Decorated Nano Y-Ba-Cu-O Hybrid Materials By Pulsed Laser Ablation

The Y₁Ba₂Cu₃O_7-δ(YBCO) precurcer oxide-water sol adulterated with Au clusters was successively prepared by pulsed laser ablation at the interface of Au target submerged in flowing YBCO precurcer oxide-water sol, YBCO precurcer oxide-water sol with Au clusters dopant was first obtained, then YBCO hybrid materials were obtained after calcined in the air. It shows that such doping may influence the structure and properties of YBCO materials.Nano-YBCO decorated in situ was successively prepared by pulsed laser ablation at the interface of flowing ethanol and rotative YBCO or its precursor oxide target. The powder samples prepared by pulsed laser ablation at the interface of YBCO target with the exporting power of 400MJ and 150MJ both have a Curie-conversion at 80.92K. The magnetization of the powder sample prepared by pulsed laser ablation at the interface of YBCO precursor oxide target with the exporting power of 400MJ changes little with the temperature, which is paramagnetic; while the powder sample prepared with the exporting power of 150MJ is diamagnetic during 80.00-84.09K and has a paramagnetic-diamagnetic conversion at 85.15K and during 86.00-240.00K is paramagnetic where the magnetization is nearly zero, then the powder was treated in O₂, microwave for 1min, 3 min and in the air at 330℃, 430℃ respectively and the results show that there's no paramagnetic-diamagnetic conversion during 80.00-240.00K for all these samples.Nano materials decorated in situ was successively prepared by pulsed laser ablation with the exporting power of 150MJ at the interface of flowing ethanol and rotative Y_1+0.1Ba_2+0.2Cu₃O_7-δ and Y_1-0.1Ba_2-0.2Cu₃O_7-δ's precursor oxide target. The results show that all the samples are weak paramagnetic during 80.00-240.00K.Nano materials decorated in situ was successively prepared by pulsed laser ablation with the exporting power of 150MJ at the interface of flowing ethanol with 10% aniline and rotative YBCO's precursor oxide target. The result shows that the sample is weak paramagnetic during 80.00-240.00K and the magnetization decreases slowly along with the increase of temperature.