P. Frübing, M. Wegener, R. Gerhard-Multhaupt, A. Buchsteiner, W. Neumann, and L. Brehmer
"Pyroelectric properties and dielectric hysteresis of a poly(vinyl alcohol) with azobenzene alkoxy side chains"
Polymer 40, 3413-3420 (1999).
D. Rollik, S. Bauer, and R. Gerhard-Multhaupt
"Separate contributions to the pyroelectricity in polyvinylidene fluoride from the amorphous and crystalline phases as well as their interfaces"
Journal of Applied Physics 85, 3282-3288 (1999).
R. Gerhard-Multhaupt
"Electrets"
Encyclopedia of Electrical and Electronics Engineering (John G. Webster, Editor) (John Wiley & Sons, New York, USA 1999), 6, pp. 220-229 (1999).
R. Gerhard-Multhaupt, G. F. Leal Ferreira, and R. M. Faria (Guest Eds.)
"Recent Developments in Selected Areas of the Research Initiated or Significantly Advanced by Bernhard Gross"
(Special Issue) Brazilian Journal of Physics 29, 215-370 (1999).
S. Bauer-Gogonea, S. Bauer, and R. Gerhard-Multhaupt
"Monomorphs, bimorphs, and multimorphs from polar polymer electrets"
Brazilian Journal of Physics 29, 306-317 (1999).
R. Gerhard-Multhaupt (Editor)
"Electrets, 3rd Edition, Volume 2"
(Laplacian Press, Morgan Hill, CA, USA 1999), pp. XVIII+338 (1999).
S. Bauer-Gogonea and R. Gerhard-Multhaupt
"Nonlinear optical polymer electrets"
Electrets, 3rd Edition 2, (Laplacian Press, Morgan Hill, CA, USA 1999), pp. 260-328 (1999).
Z. Xia, R. Gerhard-Multhaupt, W. Künstler, A. Wedel, and R. Danz
"High surface-charge stability of porous polytetrafluoroethylene electret films at room and elevated temperatures"
Journal of Physics D: Applied Physics 32, L83-L85 (1999).
R. Gerhard-Multhaupt, G. Hinrichsen, J. P. Rabe, and W. Künstler (Editors)
"European Conference on Macromolecular Physics. Molecular Orientation in Polymers: Generation, Characterisation, Application"
Europhysics Conference Abstracts 23H, pp. XIII+151 (1999).
D. Rollik, W. Künstler, S. Bauer, and R. Gerhard-Multhaupt
"Pyroelectrical study of the polarization contributions from the amorphous and crystalline phases as well as from their interface in poly(vinylidene fluoride)"
Proceedings, 10th International Symposium on Electrets (IEEE Service Center, Piscataway, New Jersey, USA 1999), pp. 51-54 (1999).
R. Gerhard-Multhaupt, Z. Xia, W. Künstler, and A. Pucher
"Preliminary study of multi-layer space-charge electrets with piezoelectric properties from porous and non-porous Teflon films"
Proceedings, 10th International Symposium on Electrets (IEEE Service Center, Piscataway, New Jersey, USA 1999), pp. 273-276 (1999).
A. Mellinger, P. Frübing, D. Prescher, and R. Gerhard-Multhaupt
"Dielectric Spectra of a Partially Fluorinated Chromophore/ Amorphous Teflon AF Guest-Host System"
Proceedings, 10th International Symposium on Electrets (IEEE Service Center, Piscataway, New Jersey, USA 1999), pp. 305-308 (1999).
M. Wegener, S. Bauer, and R. Gerhard-Multhaupt
"Apparent dielectric hysteresis without significant dipolar movement?"
Proceedings, 10th International Symposium on Electrets (IEEE Service Center, Piscataway, New Jersey, USA 1999), pp. 643-646 (1999).
P. Frübing, M. Wegener, R. Gerhard-Multhaupt, A. Buchsteiner, W. Neumann, and L. Brehmer
"Different molecular mechanisms for the dielectric hysteresis and pyroelectricity in a poly(vinyl alcohol) with azobenzene-alkoxy side chains"
Polymers and Liquid Crystals, Proceedings SPIE 4017, 26-28 (1999).
A. Stracke, A. Bayer, S. Zimmermann, J. H. Wendorff, W. Wirges, S. Bauer-Gogonea, S. Bauer, and R. Gerhard-Multhaupt
"Relaxation behaviour of electrically induced polar orientation and of optically induced non-polar orientation in an azo-chromophore side group polymer"
Journal of Physics D: Applied Physics 32, 2996-3003 (1999).