The transitions from metallic to critical behavior and from critical to insulating behavior have been induced with a magnetic field, and from insulating to critical and then to metallic behavior with increasing external pressure.
My undergraduate years at the University of Nebraska were a special time in my life: the combination of partying and intellectual awakening that is what the undergraduate years are supposed to be. I went to the university with the goal of becoming an engineer; I had no concept that one could pursue science as a career.
Polymer synthesis in the 1950s was dominated by Karl Ziegler and Giulio Natta, whose discoveries of polymerization catalysts were of great importance for the development of the modem 'plastics' industry.
In spite of the evidence for the disorder-induced M-I transition as inferred from the transport and optical measurements, the metallic state of conjugated polymers has been a subject of controversy.
The science of semiconducting and metallic polymers is inherently interdisciplinary; it falls at the intersection of chemistry and physics.
Polymeric materials in the form of wood, bone, skin and fibers have been used by man since prehistoric time. Although organic chemistry as a science dates back to the eighteenth century, polymer science on a molecular basis is a development of the twentieth century.
