Zimmerman's major contributions in physics include discoveries in Condensed Matter and Solid State Physics, phase transitions at ultra low temperatures, magnetically intercalated graphite compounds, Jahn-Teller materials, and applied superconductivity and modeling.
He resided in Boston, where he enjoyed classical music and photography and pursued his research in physics and history until the end of his life.
More specifically, some of the topics of interest are phase transitions, some at ultra low temperatures, magnetically intercalated graphite compounds, Jahn-Teller materials, and applied superconductivity and modeling.
His research collaborations include the Francis Bitter National Magnet Laboratory at MIT, and sabbaticals at Brookhaven National Laboratory, UC San Diego, Leiden University, the Netherlands, Harvard University, Cambridge US, and Imperial College, London.
He was a Member At Large of the Governing Board of the Forum on the History of Physics (FHP) and its Webmaster ad hoc.