Zobrazeno 1 - 10
of 260
pro vyhledávání: '"J.U. von Schütz"'
Publikováno v:
The European Physical Journal B. 22:335-341
We report a detailed characterization of an unique 2- and 4-fold commensurate charge density wave (CDW) state in single crystals of the organic conductor (2, 5(OCH_3)_2 DCNQI)_2 Li by means of low-frequency (0.1~Hz--1~MHz) dielectric spectroscopy. We
Autor:
A. I. Shushin, Alexander Angerhofer, Eugene Frankevich, G. Zoriniants, J.U. von Schütz, M. M. Triebel, A.N. Chaban
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 361:13-18
The magnetic field spin effect on photoluminescence of change-transfer single crystal caused by annihilation of triplet excitons and controlled by Zeeman and zero-field splitting (ZFS) interactions is investigated. Phase transition related to reorien
Publikováno v:
Synthetic Metals. 120:695-698
We overview complex conductivity measurements (10mHz-1MHz) in low-dimensional organic systems k-(BEDT-TTF)2Cu[N(CN)2]Cl, and deuterated Cu-DCNQI and its alloys, with commensurate density wave ground states. We discuss the obtained results in comparis
Publikováno v:
Chemical Physics Letters. 277:89-95
Zero-field optically detected magnetic resonance (Zf-ODMR) investigations have revealed a broad distribution of the fine structure constants in crystalline siloxene and in porous silicon attributed to a broad distribution of triplet states in both ma
Publikováno v:
Europhysics Letters (EPL). 38:219-224
We have used complex conductivity measurements between 20 Hz and 1 MHz to probe the dielectric response in the low-temperature phase of the (2,5(OCH3)2DCNQI)2Li organic conductor. The observed data reveal the existence of the relaxation process which
Autor:
Eberhard Umbach, J.U. von Schütz, D. Gador, M. Bässler, J. Müller, Rainer H. Fink, Clemens Heske, Chr. Buchberger, P. Väterlein
Publikováno v:
ResearcherID
DMe-DCNQI forms highly-ordered ultrathin films on various single crystal surfaces. NEXAFS reveals flat lying molecules for all investigated film thicknesses (up to 40 layers) on nearly all substrates under investigation (Ag(111), Ag(100), Cu(100), Cu
Publikováno v:
Solid State Communications. 101:563-567
Using a new interferometric mechanical set up, we have measured the elongation and the resistance of deuterated Cu(2,5-dimethyl-dicyanoquinonediimine)2 crystals along the c-direction as functions of temperature. The crystal length l decreases with dl
Publikováno v:
The Journal of Chemical Physics. 105:6538-6545
Phase transitions in the radical ion salts of Cu(2,5‐dimethyl‐dicyanoquinonediimine)2 (Cu(DCNQI)2) can be achieved either by ‘‘external’’ pressure or by ‘‘internal’’ pressure. The latter is introduced by chemical modifications at
Autor:
P. Väterlein, M. Bässler, J. Müller, Rainer H. Fink, Clemens Heske, Eberhard Umbach, J.U. von Schütz
Publikováno v:
Thin Solid Films. :234-237
Ultrathin layers of 2,5-dimethyl-N,N′-dicyanoquinonediimine (DMe-DCNQI) have been grown on a Ag(111) surface by vapour deposition in ultrahigh vacuum. The films have been characterized by near-edge X-ray absorption fine structure (NEXAFS), low-ener
Publikováno v:
The Journal of Chemical Physics. 104:4198-4203
The deuterated dicyanoquinonediimine salt Cu(2‐CD3,5‐CD3‐DCNQI)2, (d6), a highly conductive organic metal, exhibits a phase transition from the metallic to the insulating state at Tc≊60 K. In a wide temperature range we observe an anticoincid