194 citations · 738 across the 25 of their papers we have counts for
6 papers · 1 filter
Ageing effects around the glass and melting transitions in poly(dimethylsiloxane) visualized by resistance measurements
H. B. Brom, I. G. Romijn, J. G. Magis +2
The process of ageing in rubbers requires monitoring over long periods (days to years). To do so in non-conducting rubbers, small amounts of carbon-black particles were dispersed i…
A quantitative evaluation of metallic conduction in conjugated polymers
H. C. F. Martens, H. B. Brom
As the periodicity in crystalline materials creates the optimal condition for electronic delocalization, one might expect that in partially crystalline conjugated polymers delocali…
Metal-insulator transition in YHx: scaling of the sub-THz conductivity
I. G. Romijn, A. V. Pronin, H. B. Brom +1
The established scaling laws of the conductivity with temperature and doping are strong indications for the quantum nature of the metal-insulator transition in YH. Here we repo…
Wide energy-window view on the density of states and hole mobility of poly(p-phenylene vinylene)
I. N. Hulea, H. B. Brom, A. J. Houtepen +3
Using an electrochemically gated transistor, we achieved controlled and reversible doping of poly(p-phenylene vinylene) in a large concentration range. Our data open a wide energy-…
NMR evidence for two-step phase-separation in Nd_{1.85}Ce_{0.15}CuO_{4-delta}
O. N. Bakharev, I. M. Abu-Shiekah, H. B. Brom +3
By Cu NMR we studied the spin and charge structure in Nd_{2-x}Ce_{x}CuO_{4-delta}. For x=0.15, starting from a superconducting sample, the low temperature magnetic order in the sam…
Nuclear spin dynamics in the quantum regime of a single-molecule magnet
Andrea Morello, Oleg N. Bakharev, Hans B. Brom +2
We show that the nuclear spin dynamics in the single-molecule magnet Mn12-ac below 1 K is governed by quantum tunneling fluctuations of the cluster spins, combined with intercluste…