报告题目Title：Structural, Magnetic and Electrical Properties of Some Rare Earth Based Orthoferrites Before and After Irradiation（稀土正交铁氧体辐照前后的结构、磁学和电学物理特性）
报 告 人Speaker：Sajad Ahmad Mir（Advanced Solid State Laboratory, Department of Physics, National Institute of Technology, Srinagar, India）
报告时间Time：2016年12月16日(周五) 10:00
报告地点Venue：校本部E106（8455新葡萄场网站量子与分子结构国际中心SHU ICQMS）
摘要：Structural, Magnetic and Electrical Properties of Some Rare Earth Based Orthoferrites Before and After Irradiation
This paper presented distinctive physical properties of two main rare-earth based orthoferrites (SmFe1-xNixO and NdFe1-xNixO3) both in their bulk and thin film form. The aim is to develop functional materials that have potential applications in the storage and the spin based electronics, spintronic devices, where in the spin controlled electrical and magnetic properties area exploited. Investigation of the structural, optical, electric and dielectric properties of Ni doped (Nd/Sm)FeO3 orthoferrites are carried out in bulk form to understand the possible mechanism for their conduction and colossal dielectric constant. The second part focuses on the thin films of NdFe1-xNixO3 deposited on Si (100) by pulsed laser deposition technique and their crystallographic, morphological, electrical and magnetic transport properties. Thin films of SmFe1-xNixO3 deposited on Si (100) by pulsed laser deposition technique. These films were characterized to comprehend crystallographic, Raman, morphological, electrical and magnetic transport properties. The electronic structure, electric transport, magnetic and thermal properties of NdFeO3 and NdFe0.5Ni0.5O3 (NF5NO) in their bulk form is discussed. The distinctive anomalies in electric transport, magnetic and thermal parameters are also highlighted and possible mechanisms behind these anomalies are discussed.The effect of γ-irradiation on the Crystallographic, Raman, microstructural, morphological, electric transport and magnetic properties of Ni doped SmFeO3 thin films are reported. The effect of swift heavy ion irradiation on the structural, morphological, electrical and magnetic transport properties of pristine and Ni doped NdFeO3 thin ?lms grown on Si (100) is also outlined.

Short Bio: Sajad Ahmad Mir did his Bachlers degree in Science with first class from Sri Pratap College of University of Kashmir and Masters degree in Physics with first class first position from University of Kashmir (J&K), India. He is an awardee of Kashmir university gold medal for achieving first position in M.Sc Physics and Professor Rayees gold medal on his great performance at Post Graduate level (Science).  He has done Ph.D in Physics (Materials Science) from National Institute of Technology (N.I.T) Srinagar, India.  He is working as senior Lecturer in Physics in the Department of Education, Government of J&K, India. Dr. Sajad has been honoured with the best Science Teacher award in the year 2011 by the Department of Science and Technology, Govt. of J&K, India. He has won the best research presentation awards in several national and international conferences. His main research interests include Structural, Magnetic, Electrical and Thermal properties of Fe based Rare-Earth Ortho-perovskites and their Irradiation Study.