✦ LIBER ✦

Anisotropic distortion of J-aggregates at decreasing temperature

✍ Scribed by L. Daehne; A. Endriss; J. Ihringer

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 197 KB
Volume: 224
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(94)00504-4

No coin nor oath required. For personal study only.

✦ Synopsis

Temperature-dependent X-ray diffraction exhibits that the J-aggregates in crystals of bis-(dimethylamino)-heptamethinium perchlorate contract unusually strong at low temperature. The intermolecular distance between the dye cations is reduced from 354 pm at room temperature to 336 pm at 30 IC The results are an important due for the explanation of unusual temperature dependence of collective phenomena of J.aggregates.

📜 SIMILAR VOLUMES

Time-resolved emission spectra of the BI

Time-resolved emission spectra of the BIC J-aggregate at low temperature

✍ Valey F. Kamalov; Irina A. Struganova; Keitaro Yoshihara 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 456 KB

A red-shift and broadening of the emission of the BIC J-aggregate in glass were observed at low temperatures (4.5 K). To explain the observation a transformation of the excess excitation energy in the bath with disordering of the structure of molecular aggregate is proposed. The characteristic time

Temperature dependence of superradiant e

Temperature dependence of superradiant emission of BIC J-aggregates

✍ Valey F. Kamalov; Irina A. Struganova; Tadaaki Tani; Keitaro Yoshihara 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 418 KB

The emission lifetime of the carbocyanine BIC J-aggregate decreased with the increase of the temperature in the range 20-60 K. Several mechanisms are proposed to explain the nonradiative relaxation of the J-aggregate observed in glass.

Thermodynamics of the anisotropic Heisen

Thermodynamics of the anisotropic Heisenberg ferromagnet at low temperature

✍ M. Brunné; M. Drzazga 📂 Article 📅 1974 🏛 Elsevier Science ⚖ 565 KB

Anisotropic decrease of the spin-Peierls

Anisotropic decrease of the spin-Peierls transition temperature of CuGeO3 with a magnetic field

✍ R.K. Kremer 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 313 KB

Elastic Moduli of Porous and Anisotropic

Elastic Moduli of Porous and Anisotropic Composites at High Temperatures

✍ D. Loidl; S. Puchegger; K. Kromp; J. Zeschky; P. Greil; M. Bourgeon; H. Peterlik 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 213 KB

Simulation of tensile strength of anisot

Simulation of tensile strength of anisotropic fibre-reinforced composites at low temperature

✍ H.H. Abdelmohsen 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 490 KB

This article presents a simulation scheme to predict the effect of fibre anisotropy on composite tensile failure strength at room and low temperatures. The simulation model combines the shear lag equation with the chain of bundles probability model to describe the composite failure behaviour. The ef