Download or read book Neutron Scattering Studies of Structural Phase Transitions written by W. Bührer and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phase Transitions and Neutron Scattering written by and published by . This book was released on 1993 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review is given of recent advances in neutron scattering studies of solid state physics. The author has selected the study of a structural phase transition as the best example to demonstrate the power of neutron scattering techniques. Since energy analysis is relatively easy, the dynamical aspects of a transition can be elucidated by the neutron probe. He will discuss in some detail current experiments on the 100K transition in SrTiO3, the crystal which has been the paradigm of neutron studies of phase transitions for many years. This new experiment attempts to clarify the relation between the neutron central peak, observed in energy scans, and the two length scales observed in recent x-ray diffraction studies where only scans in momentum space are possible.

Download or read book Structural Phase Transitions I written by K.A. Müller and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by numerous experts

Download or read book The Physics of Structural Phase Transitions written by Minoru Fujimoto and published by Springer Science & Business Media. This book was released on 2005-12-06 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phase transitions in which crystalline solids undergo structural changes present an interesting problem in the interplay between the crystal structure and the ordering process. This text, intended for readers with some prior knowledge of condensed-matter physics, emphasizes the basic physics behind such spontaneous structural changes in crystals. Starting with the relevant thermodynamic principles, the book discusses the nature of order variables and their collective motion in a crystal lattice; in a structural phase transition a singularity in such a collective mode is responsible for the lattice instability, as revealed by soft phonons. This mechanism is analogous to the interplay of a charge-density wave and a periodically deformed lattice in low-dimensional conductors. The text also describes experimental methods for modulated crystal structures and gives examples of structural changes in representative systems. The book is divided into two parts. The first, theoretical, part includes such topics as: the Landau theory of phase transitions; statistics, correlations and the mean-field approximation; pseudospins and their collective modes; soft lattice modes and pseudospin condensates; lattice imperfections and their role in the phase transitions of real crystals. The second part discusses experimental studies of modulated crystals using x-ray diffraction, neutron inelastic scattering, light scattering, dielectric measurements, and magnetic resonance spectroscopy.

Download or read book Structural Studies of Liquids and Glasses Using Aerodynamic Levitation written by Thomas Farmer and published by Springer. This book was released on 2014-07-07 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents neutron scattering data that contribute to the understanding of four distinct areas of condensed matter physics, including iso-compositional liquid-liquid phase transitions and the glass formation in rare earth doped BaTi2O5. In situ aerodynamic levitation with laser heating was combined with neutron scattering in order to study both liquid-liquid phase transitions in (Y2O3)x(Al2O3)1-x and the atomic and magnetic ordering in liquid Invar. Among several significant results, obtained in this case from small angle neutron scattering, was the absence of a phase transition across a range of temperatures and compositions in the yttria aluminates. As these are a principal system in which liquid-liquid phase transitions have been hypothesized, this is an important contribution in a contentious area.

Download or read book Pressure Induced Structural Phase Transition in CeNi written by and published by . This book was released on 2015 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neutron Scattering Studies of Pretransitional Phenomena in Structural Phase Transformations written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials exhibiting structural phase transformations are well known to possess pretransitional phenomena. Below the transition temperature, T/sub c/, an order parameter appears and the pretransitional effects are associated with the fluctuations of the order parameter. Neutron scattering techniques have proved invaluable in studying the temporal and spatial dependence of these fluctuations. SrTiO3 is the prototypical example of a structural phase transformation exhibiting features observable in other transformations such as martensitic and order-disorder. The experimental evolution of the understanding of the phase transformation in SrTiO3 will be reviewed and the features observed will be shown to typify other systems.

Download or read book Neutron scattering studies on phase transitions in CDNDCuCl and MnClHO written by Josephus J. Steijger and published by . This book was released on 1982 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neutron Scattering Studies on Phase Transitions in CD3ND3 2CuCI4 and MnCI24H2O written by Josephus Johannes Maria Steijger and published by . This book was released on with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neutron Scattering Studies of Two Magnetic Phase Transitions written by Radu Coldea and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High resolution X ray and Small Angle Neutron Scattering Studies of Liquid Crystal Structure and Phase Transitions written by Joseph T. Mang and published by . This book was released on 1995 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neutron Scattering Studies on Phase Transitions in CD3ND3 2CuC14 and MnC12 4H2O written by Josephus Johannes Maria Steijger and published by . This book was released on 1982 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Neutron Scattering Studies on Magnetic and Molecular Phase Transitions written by Leendert Bevaart and published by . This book was released on 1978 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neutron Scattering Studies of the Structural Phase Transformation in NbO2 written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: NbO2 shows an apparently second order phase transformation at T/sub c/ approximately equal to 810°C, which coincides with anomalous changes in both electrical and magnetic properties. New neutron scattering measurements are summarized and the nature of the structural distortions and the relation between the structural instabilities in the isoelectronic compounds VO2 and NbO2 are discussed.

Download or read book Neutron Scattering Studies on Phase Transitions in CD 3 ND 3 2 CuCl 4 and MnCl 2 4H 2 O written by Josephus Johannes Maria Steyger and published by . This book was released on 1982 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neutron and Synchrotron Radiation for Condensed Matter Studies written by Jose Baruchel and published by Springer Science & Business Media. This book was released on 2013-12-18 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second volume in the HERCULES Course on Neutron and Synchrotron Radiation for Condensed Matter Studies is devoted to selected applications in physics and chemistry of solids, with the fourteen chapters ranging from general considerations of symmetry in condensed matter to the most recent developments in magnetic excitations and electron spectroscopies in high Tc superconductors. The subjects were chosen either for their basic importance or because of interesting new developments, while the fifteen authors were selected both for their high scientific expertise and their teaching skills.

Download or read book Neutron Scattering by Ferroelectrics written by Viktor Lazarevich Aksenov and published by World Scientific. This book was released on 1990 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the recent theoretical and experimental developments of neutron scattering by ferroelectrics. A Model description of lattice dynamics of structurally unstable crystals (self-consistent phonon approximation, pseudo-spin formalism, coherent potential approximation etc.) is formulated. The effects of nonlinear excitations and lattice defects in neutron scattering are also discussed.