High temperature grown transition metal oxide thin films: tuning physical properties by MeV N+-ion bombardment
ABSTRACT In this paper, we present a systematic study on tuning the physical properties of high temperature (373 K) grown transition metal oxide thin films by the effect of 2 MeV nitrogen ion irradiation. Although we observe irradiation induced growth in crystallite sizes for both WO 3 and MoO 3 films, no structural phase change takes place in the films due to N + -ion beam irradiation even up to the fluence of 1 × 10 15 N + cm −2 . On the other hand, irradiation leads to a significant increase in the optical absorption and the surface roughness of the films. These observations are corroborated by micro-Raman analysis. The results are attributed to the MeV ion–matter interaction.
Conference Proceeding: A solid-state vehicle detector for roadway applications[show abstract] [hide abstract]
ABSTRACT: In this paper, the authors present a magnetoresistive magnetometer concept as a vehicle detector. A magnetoresistive three-axis magnetometer was designed, fabricated, characterized, and tested with the purpose of detecting vehicles on highways. Testing included making measurements at in-use roadway test sites. Magnetic `signatures' of vehicles were collected and post-test data analyzed by applying a detection algorithm. Detection accuracy was greater than 90% for all types of vehicles passing over the detectorsVehicle Navigation and Information Systems Conference, 1995. Proceedings. In conjunction with the Pacific Rim TransTech Conference. 6th International VNIS. 'A Ride into the Future'; 08/1995