Papers by Author: Jian Ping Yang

Abstract: Mn-doped Cu₃N films were prepared by radio frequency reactive magnetron sputtering method under different manganese concentration. The deposits exhibit a satisfactory crystallinity and a preferred growth orientation along the (111) plane. The shapes of crystalline grains vary from pyramid-like to rugby-ball-like with the Mn-doping constituent in Cu₃N film reaching 0.02%. The electrical resistivity of Mn-doped Cu₃N films has dramatically increased from 0.102×10³ Ω·cm to 0.495×10³ Ω·cm at room temperature. Moreover, the reflectivity difference and ferromagnetic property have also been investigated.

Abstract: Bi4-xLaxTi3O12 (BLT) ferroelectric thin films were deposited on Pt/Si substrates by RF magnetron sputtering with Bi4-xLaxTi3O12 (x=0.5, 0.75, 1) targets with 50-mm diameter and 5-mm thickness. The effects of La contents on microstructure and ferroelectric properties of Bi4-xLaxTi3O12 thin films were investigated. The grain growth behavior and ferroelectric properties such as remanent polarization were found to be dependent on the La contents in the BLT thin films.