Growth of nanolaminate structure of tetragonal zirconia by pulsed laser deposition

Growth of nanolaminate structure of tetragonal zirconia by pulsed laser deposition

Alumina/zirconia (Al2O3/ZrO2) multilayer thin films were deposited on Si (100) substrates at an optimized oxygen partial pressure of 3 Pa at room temperature by pulsed laser deposition. The Al2O3/ZrO2 multilayers of 10:10, 5:10, 5:5, and 4:4 nm with 40 bilayers were deposited alternately in order to stabilize a high-temperature phase of zirconia at room temperature. All these films were charact...

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...

Growth of Gallium Oxide Nanowires by Pulsed Laser Deposition

We report on the synthesis of gallium oxide nanowires by pulsed laser deposition using a gold catalyst. In the vapor-liquid-solid process, gold thickness was the crucial parameter for deciding the morphology of nanowires. In the case of 1 nm thick gold, homogeneous nanowire growth was confirmed at temperatures of 700 ̊C to 850 ̊C. Transmission electron microscopy and selected area electron diffra...

Characterization study of yttria-stabilized zirconia (YSZ) thin films produced by pulsed laser deposition

Growth, structure, and magnetism of fcc Fe ultrathin films on Cu„111... by pulsed laser deposition

Ultrathin Fe films on Cu~111! have been grown by pulsed-laser deposition ~PLD! whose instantaneous deposition rate is about six orders of magnitude larger than that of the conventional molecular-beam epitaxy based on thermal deposition ~TD!. Compared to the TD prepared Fe/Cu~111! films, the PLD films have a significantly improved layer-by-layer morphology and a substantially enhanced stability ...