A Brief History of DIS
摘要
A signal observed out-of-phase with the microwaves in continuous wave EPR, predicted by theories in the early 1960’s, changed the then-existing paradigm to study Heisenberg spin exchange of radicals in solution. This is a brief history of the importance and use of that signal, which we call DIS. Since those early days, several important paradigm changes have occurred, all requiring a role for DIS. We outline our perception of those changes.