Dr. Michael Monkenbusch
Diploma thesis (1977-78) at the institute of W. Ludwig at the Westfälischen Wilhelms Universität Münster on a Greensfunction method used to determine the forces exerted on a defect by a simple model lattice.
Move to the IFF (H. Stiller, Neutronenstreuung II) to prepare a thesis on the field of the physics of adsorbed molecules. Namely on the application of inelastic neutron scattering for the investigation of diffusion and lattice dynamics of adsorbates. Jan. 1981 the University Münster conferred the doctor's degree for the thesis: "Untersuchung von Benzol und Toluolschichten auf den 0001 Flächen von Graphit mittels Neutronenstreuung" ("Neutron scattering investigation of benzene and toluene layers on the 0001 surfaces of graphite")
Feb. 1981 move to the Institut für Makromoleklare Chemie der Universtät Freiburg (G.Wegner). Research work on elctrical conducting polymers (polyacetylen, polypyrrole, polyparaphenylene ..) employing electrical and electrochemical methods, optical spectroscopy and X-ray diffraction. In particular the structural changes upon the so called "doping" in combination with conductivity changes were investigated.
Since autumn 1984 research scientist at the IFF, Neutronenstreuung II. Investigations on the dynamics of hydrogen bonded molecular systems and adsorbates. Development of a lattice dynamics code for molecular crystals.
During that period principal instrument scientist of the triple axis neutron spectrometer SV4 at the FRJ-2 reactor. Development of a new electronics and control system to meet modern requirements in cooperation with the central electronic laboratory (ZEL) of the KFA (now FZ-Jülich).
Continuous interest in scientific computing, in that context continuous development of universal data treatment and evaluation procedure for spectroscopic and diffraction data (TOFSYS, DATREAT).
1989 start of the work to conceive and draft of the Jülich neutron spinecho spectrometer, development of the scheme of compensated main solenoids and improved correction elements for field integral homogenization that allowed for the use of an area detector. 1990-1996 scientific guidance of the construction of the NSE spectrometer in Jülich and of a second copy for the NIST, Gaithersburg, USA. Development of the method of "computed setup" for the NSE spectrometer, that virtually eliminates the necessity to "tune" the currents between experiments. From 1996 operation and improvement of the NSE spectrometer as principal instrument scientist.
From 2001 scientific advisor for the Jülich NSE project at the SNS at BL15 (official since 2003).
In parallel to the instrument construction: scientific research on the field of "soft matter". In particular research on the structure (SANS) of polymer aggregates (polystyrene-polyisoprene, polyethylene-polyethylenpropylene(PEPEP)) and on the dynamics (NSE) of the polymer brushes on their surfaces.
Further, research work on the dynamics (membrane undulations) of ionic SDS-water-oil microemulsion systems, dynamics of block copolymer melts (polyethylethylene-polyethylenpropylene ...), reptation dynamics in polymer melts (polyethylene), local dynamics of polymers (polyisobutylene) in melts and solutions (cooperation with the group of J. Colmenero, univerity San Sebastian, Spain). On the field of microemulsions (in cooperation with the group of R. Strey, university Köln): structure and dynamics of bicontinuous and lamellar microemulsions and the influence of added polymeric surfactants that strongly enhance the emulsification efficiency. And more recently application of NSE spectroscopy on biological molecules.
The latter and the local dynamics of reptating polymer melts are -besides technical developments of the NSE method- currently the main research topics.