Giant phonon anomalies in the pseudo-gap phase of TiOCl

We report infrared and Raman spectroscopy results of the spin-1/2 quantum magnet TiOCl. Giant anomalies are found in the temperature dependence of the phonon spectrum, which hint to unusual coupling of the electronic degrees of freedom to the lattice. These anomalies develop over a broad temperature interval, suggesting the presence of an extended fluctuation regime. This defines a pseudo-gap phase, characterized by a local spin-gap. Below 100 K a dimensionality cross-over leads to a dimerized ground state with a global spin-gap of about 2$\Delta_{spin}\approx$~430 K.Comment: 4 pages, 3 figures, for further information see http://www.peter-lemmens.d

Settling Simulation of A Muddy Reservoir For Identifying Problematic Turbidity To Selective Withdrawal

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

Comparing the Generating Strategies of Hydropower of Cascade Reservoirs to Mitigate the Shortage of Water Supply

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchive

The Impact of Peak Hydrogeneration for Reserving Environmental Flow in Dachia River, Taiwan

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

Classical Dynamics of Anyons and the Quantum Spectrum

In this paper we show that (a) all the known exact solutions of the problem of N-anyons in oscillator potential precisely arise from the collective degrees of freedom, (b) the system is pseudo-integrable ala Richens and Berry. We conclude that the exact solutions are trivial thermodynamically as well as dynamically.Comment: 19 pages, ReVTeX, IMSc/93/0