2017/01/23 by Kavita Mehlawat, Yogesh Singh · 3 citations
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Charge density wave #Chemistry #Condensed matter physics #Crystal (programming language) #Doping #Electrical resistivity and conductivity #Etching (microfabrication) #Grazing-incidence small-angle scattering #Inelastic scattering #Magnetic and transport properties of perovskites and related materials #Materials science #Nanotechnology #Optics #Optoelectronics #Phase (matter) #Phase transition #Physics #Physics of Superconductivity and Magnetism #Plasma #Plasma etching #Scattering #Surface conductivity #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1063/1.4974916
published in AIP Advances 7(5) (American Institute of Physics) · 4 pages, 3 fugures, 2 Tables
openalex publication_date 2017/01/23 · arxiv created 2017/05/26 · arxiv updated 2017/05/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We report that the surface conductivity of Na2IrO3 crystal is extremely tunable by high energy Ar plasma etching and can be tuned from insulating to metallic with increasing etching time. Temperature dependent electrical transport for the metallic samples show signatures of first order phase transitions which are consistent with charge or spin density wave like phase transitions predicted recently. Additionally, grazing-incidence small-angle x-ray scattering (GISAXS) reveal that the room temperature surface structure of Na2IrO3 does not change after plasma etching.