Size effects and electron transport in boron-doped and hydrogenated diamond

We propose to prepare and to study experimentally thin films of boron-doped and hydrogenated diamond films and diamond-based hybrid systems. Diverse transport and magnetotransport methods will be used in a wide range of temperatures 0.3-800 K. The transport measurement will be completed by other experimental methods like various surface-sensitive microscopic techniques and Raman spectroscopy to get complementary data. Influence of downscaling of one (in ultrathin layers and delta-doped structures) or more dimensions (in nanocrystalline material) on superconducting and noise properties of boron-doped diamond will be investigated. Transport mechanism in hydrogenated nanocrystalline diamond films will be examined by temperature-dependent conductivity, I-V curves and frequency dependent impedance. Hybrid organic/diamond system will be studied by magnetotransport with the aim to find channels responsible for transport and possible transfer doping effects. The final goal of the project is to collect reliable data on electron transport in several related diamond-based systems, on the ground of which we will describe, evaluate and consistently interpret the effects of nanoscaling and mixing of various subsystems in boron-doped and hydrogenated diamond.