Zobrazeno 1 - 10 of 175 pro vyhledávání: '"H. B. Brom"'
1
Charge carrier properties below and above the metal-insulator transition in conjugated polymers : recent results
Autor: A.K. Mukherjee, M.A.J. Michels, Hermen Jan Hupkes, H. B. Brom, Willem Franke Pasveer, Reghu Menon, I. G. Romijn, I. N. Hulea, H. C. F. Martens
Publikováno v: Physica Status Solidi C: Conferences. 1(1):144-147
The strong doping dependence of the dc conductivity in conjugated polymers below the metal–insulator transition (MIT), illustrated for PPV, is argued to be due to an increase in the density of states and the growth in size of the regions, in which
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2e488d82f2459b2429bda14953e7a48
https://doi.org/10.1002/pssc.200303609
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2
69,71 Ga NMR studies of a superconducting Ga 84 cluster compound
Autor: N. Zelders, Andreas Schnepf, L. Jos de Jongh, H. B. Brom, Hansgeorg Schnöckel, O. N. Bakharev
Publikováno v: The European Physical Journal D - Atomic, Molecular and Optical Physics. 24:101-104
We present 69,71Ga-NMR experiments on microcrystalline samples of the recently discovered supramolecular compound Ga 84 [ N ( SiMe 3 ) 2 ] 20 Li 6 Br 2 ( thf ) 20 . 2 toluene, which is composed of ligand-coordinated Ga84 metal clusters, packed togeth
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::77ff07dfb16709290b429c0b16ef533e
https://doi.org/10.1140/epjd/e2003-00147-0
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4
Percolation and high-frequency hopping in cluster compounds and polymers
Autor: Maj Thijs Michels, H. B. Brom
Publikováno v: Philosophical Magazine B : physics of condensed matter, statistical mechanics, electronic, optical and magnetic properties, 81(9), 941-954. Taylor and Francis Ltd.
In strongly disordered solids the complex conductivity has a remarkably uniform dependence on the number of carriers, temperature and frequency. Still, as we illustrate for randomly packed molecular cluster compounds, it is possible to derive the rel
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30742e634593491ac090a953e7e436c6
https://doi.org/10.1080/13642810108205782
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5
STRIPE AND SPIN DYNAMICS IN HOLE DOPED La2NiO4, La2CuO4, Bi2Sr2CaCu2O8 AND ELECTRON DOPED Nd1.85Ce0.15CuO4 SEEN BY NUCLEAR RESONANCE
Autor: O. N. Bakharev, E. G. Nikolaev, I. M. Abu-Siekah, A.A. Menovsky, Ming-Li, Agustinus Agung Nugroho, Jan Zaanen, H. B. Brom, O. O. Bernal, G. B. Teitel'baum, P. H. Kes
Publikováno v: International Journal of Modern Physics B. 14:3368-3373
Using new resonance results, we investigate the relation between the charge and spin ordering features seen by a.o. neutron scattering and ARPES, and the NMR/NQR signal intensities (wipe-out effects), relaxation rates and line shapes in hole doped La
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::96cd9bd3b5b38714ceb2ac6cb47dd122
https://doi.org/10.1142/s0217979200003599
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7
Hole Transport in Poly(p-Phenylene Vinylene)
Autor: H.F.M. Schoo, H. B. Brom, Paul W. M. Blom, H. C. F. Martens
Publikováno v: physica status solidi (b). 218:283-286
The influence of side chains on hole transport in poly(p-phenylene vinylene) is examined as a function of temperature T and electrical field E by means of current–voltage experiments, and impedance spectroscopy which probes the transit time of inje
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1ed87bac5273cfb6cafd1ed7e5c6d5bb
https://doi.org/10.1002/(sici)1521-3951(200003)218:1<283::aid-pssb283>3.0.co
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8
Dopant effect on the charge transport in conjugated polymers
Autor: O. Hilt, Maj Thijs Michels, Jan Reedijk, H. B. Brom, H. C. F. Martens
Publikováno v: Physica Status Solidi B, 218(1), 279-282. Wiley-VCH Verlag
The interplay between inter- and intra-chain charge transport in the conjugated polymers poly(p-phenylene vinylene) (PPV), and polythiophene (PTh) has been investigated. By studying the conductivity as a function of frequency, temperature and doping
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b610c0e2ad54ba0848a3150f60b92c3c
https://research.tue.nl/en/publications/77ab9600-a965-431c-8a59-d76387db0d6b
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9
Frequency-dependent electrical response of holes in poly(p-phenylene vinylene)
Autor: H. C. F. Martens, H. B. Brom, P.W.M. Blom
Publikováno v: Physical Review B, 60(12):R8489. AMER PHYSICAL SOC
Transport of holes in poly$(p$-phenylene vinylene) has been studied as a function of frequency, temperature, dc bias, and polymer thickness. For such a low mobility material we demonstrate that the specific frequency dependence of the response reflec
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee8e2ffa9c45d0eb826977cbdf6f2972
https://doi.org/10.1103/physrevb.60.r8489
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10
Mesoscopic Fluctuations in Small Metal Particles Studied by Nuclear Magnetic Resonance
Autor: H. B. Brom, F.C. Fritschij, Günter Schmid, L.J. de Jongh
Publikováno v: Physical Review Letters. 82:2167-2170
In a small metal particle (SMP) of N atoms the energy splittings D around the Fermi energy EF are of order D , EFyN. At thermal energies much larger than the interlevel spacings the system will behave like a bulk metal, but with decreasing temperatur
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::240beb102f10c23b227a217cf091b02b
https://doi.org/10.1103/physrevlett.82.2167
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