物理系学术报告.PDF

物理系学术报告 11 月 18 日，周三，15:30，教 12-423 75As NMR Investigation of the Electron Doped Ba(Fe Co ) As 1-x x 2 2 宁凡龙博士 Department of Physics Astronomy McMaster University ABSTRACT In this talk, I will give an introduction of the NMR (Nuclear Magnetic Resonance) technique and several examples of its applications in the study of the strongly correlated electron systems. I will show some NMR evidences that are the “smoking gun” for the charge ordered ground state of Na CoO [1] and the 0.5 2 incommensurate - spin density wave ground state of the lightly electron doped Ba(Fe Co ) As (x = 0.02) [2]. If time allows, I 1-x x 2 2 will also discuss some NMR results including the static spin susceptibility obta