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Measurement Of The Magnetic And Temperature Dependence Of The Electron Electron Anisotropic Temperature Relaxation Rate
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Book Synopsis Measurement of the Magnetic and Temperature Dependence of the Electron-electron Anisotropic Temperature Relaxation Rate by : Bret Robert Beck
Download or read book Measurement of the Magnetic and Temperature Dependence of the Electron-electron Anisotropic Temperature Relaxation Rate written by Bret Robert Beck and published by . This book was released on 1990 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relaxation Time Measurements in Electron Paramagnetic Resonance by : James Joseph Chang
Download or read book Relaxation Time Measurements in Electron Paramagnetic Resonance written by James Joseph Chang and published by . This book was released on 1971 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nuclear and Electron Relaxation by : Lucia Banci
Download or read book Nuclear and Electron Relaxation written by Lucia Banci and published by Wiley-VCH. This book was released on 1991-11 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with spin relaxation by underlying the similarities between nuclear and electron spins, and provides a clear and unified picture of the behavior of spins in magnetic resonance. It is especially tailored for scientists dealing with chemical applications of relaxation phenomena. It reviews the basic theory together with the mathematical approach and shows how the theory elucidates the structure and dynamic behavior of transition metal complexes, metal clusters and metalloproteins. The complete theory of contrast agents in magnetic resonance imaging is also presented. The book is a unique and valuable guide for anyone working with paramagnetic systems, from physical and inorganic chemists to biophysicists.
Book Synopsis Magnetic Resonance and Related Phenomena by :
Download or read book Magnetic Resonance and Related Phenomena written by and published by . This book was released on 1974 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Magnetism written by Gupta L C and published by World Scientific. This book was released on 1993-03-24 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Spin Fluctuations in Heisenberg Magnets: Dynamic Critical Phenomena and Excitations in Quasi-Periodic Systems (S W Lovesey)Quenching of Spin Fluctuations by High Magnetic Fields (K Ikeda et al.)Kondo Effect and Heavy Fermions (B Coqblin et al.)Magnetic Interactions in Correlated Electron Systems: High Pressure Investigations (J D Thompson)Hall Effect in Heavy Fermion and Mixed Valence Systems (A Hamzić & A Fert)Magnetic Properties of Uranium Based 1-2-2 Intermetallics (T Endstra et al.)Inelastic Magnetic Excitations in Anomalous Rare Earth Intermetallics (E Holland-Moritz)Neutron Scattering Studies of Magnetic Properties of Actinide Systems (G H Lander & G Aeppli)Magnetic Properties of Heavy Fermion Systems — As Studied by μSR-Spectroscopy (A Schenck)Re-Entrant Spin-Glasses: Do They Exist? (B R Coles & S B Roy)Insulating Spin Glass Systems (J K Srivastava)Nuclear Magnetism in Metals and Alloys (S Ramakrishnan & G Chandra) Readership: Solid-state physicists and chemists. keywords:
Book Synopsis Selected Topics in Magnetism by : L. C. Gupta
Download or read book Selected Topics in Magnetism written by L. C. Gupta and published by World Scientific. This book was released on 1993 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Magnetic Relaxation in Organic-based Magnets by : Stephen J. Etzkorn
Download or read book Magnetic Relaxation in Organic-based Magnets written by Stephen J. Etzkorn and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Spin glasses are magnetic systems with random, frustrated magnetic interactions. The result of this frustration is that these materials possess no true long-range order, but rather have a "freezing transition" to a state which appears ordered on observable time scales. This frustration induces many complicated magnetic phenomena, including frequency dependence of the ac susceptibility and dc magnetic relaxation on an experimentally observable time scale. This dissertation addresses the nature of magnetic relaxation observed in the organic-based magnet [MnTPP] + [TCNE] - · y (solvent). This material forms linear chains of alternating electron donor ([MnTPP]) and acceptor ([TCNE]) pairs with large interchain spacing. The low dimension of the structure enables this system to serve as an experimental platform for testing spin glass theory. Relaxation and spin glass behavior was investigated in [MnTPP] + [TCNE] - · 2(1,3-C 6 H 4 Cl 2) by incorporating both ac and dc magnetic measurements. A scaling analysis of the ac susceptibility reveals a spin glass transition at 4.1 K. The thermoremanent magnetization exhibits long time relaxation above this temperature. The effects of relaxation on magnetic reversal were examined via time dependent magnetic measurements. The results of these measurements were analyzed using a fractal cluster model for spin glasses. This model provided a method for obtaining a physical interpretation of the results of the relaxation data. Through an extension of this model, the fractal dimension of the spin clusters was obtained. The value for the spin cluster dimension ranged from 0.8 to over 1.5 as the glass transition temperature is approached. These results suggest a picture of anisotropic spin clusters as the mechanism for magnetic ordering in [MnTPP] + [TCNE] - · y (solvent).
Book Synopsis Magnetic Resonance and Related Phenomena by : Väinö Hovi
Download or read book Magnetic Resonance and Related Phenomena written by Väinö Hovi and published by . This book was released on 1973 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electron Spin-lattice Relaxation of Cr(CN)5NO3- in KBr and KCl by : George Taylor Johnston
Download or read book Electron Spin-lattice Relaxation of Cr(CN)5NO3- in KBr and KCl written by George Taylor Johnston and published by . This book was released on 1967 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Congress Ampère on Magnetic Resonance and Related Phenomena : Extended Abstracts by : M. Mehring
Download or read book Congress Ampère on Magnetic Resonance and Related Phenomena : Extended Abstracts written by M. Mehring and published by Springer. This book was released on 1990 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1974 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Materials Science in Static High Magnetic Fields by : Kazuo Watanabe
Download or read book Materials Science in Static High Magnetic Fields written by Kazuo Watanabe and published by Springer Science & Business Media. This book was released on 2002 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the most comprehensive review of the influence of highly intense magnetic fields on materials of various classes.
Book Synopsis The dynamical behavior of some weakly anisotropic magnetic syst... by : W. M. de Jong
Download or read book The dynamical behavior of some weakly anisotropic magnetic syst... written by W. M. de Jong and published by . This book was released on 19?? with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electronic properties of the superconducting and density wave phases in organic anisotropic materials by : Marko Pinterić
Download or read book Electronic properties of the superconducting and density wave phases in organic anisotropic materials written by Marko Pinterić and published by . This book was released on 2003 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: The family of quasi-two-dimensional $\mbox{$\kappa$-(ET)$_2 X$}$ organic materials distinguishes itself by the rich phase diagram, very similar to the one found in the high-temperature superconducting cuprates. Because of this similarity, an enormous effort was made in order to understand the superconducting state in these materials. Despite of that, a long time controversy regarding the symmetry of the superconducting state has persisted to this day. In order to make a breakthrough in the understanding of the problem, we concentrated our attention on three important issues. First, if one wants to understand the superconducting ground state, one has to correlateits properties with the properties of the neighboring insulating spindensity wave ground state and the normal state. Second, sample-dependent and thermal history effects should be accounted for. And finally, the full characterization of the superconducting state should be made on one single crystal and, if possible, using one experimental method. Indeed, in our investigation we successfully addressed all of these issues. Normal state properties point to strong electron correlations, which, depending on the subtle crystal properties, lead to either an antiferromagnetic or a superconducting state. The situation is further complicated by the existence of the important relaxation effects, due to the glass transition, that influence the properties of the superconducting ground state. Our measurements of the insulating spin density wave ground state included the measurement of the single-particle resistivity, the non-ohmic conductivity andthe dielectric spectroscopy. The obtained non-ohmic and dielectric responsecan be explained only by the existence of the collective mode. The behavior of physical parameters, related to the response, suggests that the short-wavelength -- charge domain wall pairs -- excitations are the entities responsible for the observed properties. The existence of domain walls is naturally connected to the existence of the reported weak ferromagnetic ordering, which also implies the existence of domains. Next, the full characterization of the superconducting state was made for samples of different syntheses. Further, every sample was cooled using several different well-controlled conditions in the temperature region that corresponds to the glass transition. Large differences in the properties of the superconducting state were observed and the ground state was assigned to the low-temperature state obtained by the slowest cooling rate. The investigation of the superconducting state was performed by the extraction of the penetration depth. This method has a large advantage as regarding to the fact that the superfluid density can be calculated directly from the penetration depth. The measurements were performed using the ac~susceptometer of high precision, which was inevitable in order to account for small dimensions of the studied samples. The measurements were done in magnetic fields, more than an order of magnitude smaller than the Earthćs field, which is far below the lower critical magnetic field, so the genuine Meissner state was measured and the possible vortex effects were avoided. Finally, a specially developed improvedcalibration was designed in order to obtain the reliable absolute value of the penetration depth for two distinct geometries, with the directionof the magnetic field parallel and perpendicular to the isotropic crystal planes. The qualitative temperature dependence of both the in-plane and the out-of-plane superfluid densities in the genuine superconducting ground state undoubtfully revealed that the symmetry of the superconductivity requires the existence of the linear nodes in the superconducting gap, which is in a good agreement with the $d$-wave model. Also, to obtain the temperature dependance of the out-of-plane suprafluid density, Josephson coupling between the conducting planes has to be taken into account. The nodes in the superconducting gap are not surprising if one takes into consideration that an antiferromagnetic state is located in the vicinity of the superconducting one, which points to the unconventional superconductivity. In order to also get a quantitative agreement, the ($d+s$)-wave model was used, however, a rather large $s$-wave component needed to fit our data was not consistent with the recent thermal conductivity results. On the other hand, the superconducting state, obtained by the fastercooling rate, can be well described by the model of the $d$-wave superconductor with impurities. Even more important, this state can be correlated fairly well to the $s$-wave coupling superconducting model, with nonodes in the superconducting gap. This fact suggests a possible way out of the contradicting results in the scientific community. Finally, few domain effects in the superconducting state, combined with the domain structure in the neighboring insulating spin density wave ground state, point to an important possibility of the existence of a novel ground state. Since $\mbox{$\kappa$-(ET)$_2 X$}$ materials are in many ways very similar to high-temperature superconducting cuprates, a question appears if this state can be somehow related to newly reported structures -- stripes -- in the latter materials.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-04 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Exotic Atoms in Condensed Matter by : Giorgio Benedek
Download or read book Exotic Atoms in Condensed Matter written by Giorgio Benedek and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Exotic Atoms in Condensed Matter" reviews the state of the art in this field, from meson factories to the basic interactions of muons in condensed matter. The application of muon- and pion-based analysis of solid state structural, magnetic and superconducting properties is discussed. The spectroscopic features of exotic atoms are reviewed together with their application to chemical analysis. Also, muon-catalyzed fusion is presented.