Amorphous Magnetism: Proceedings of the International Symposium on Amorphous Magnetism, August 17-18, 1972, Detroit, Michigan

ISBN-13: 9781461345701 / Angielski / Miękka / 2011 / 444 str.

H. Hooper

Opis

The title of amorphous magnetism was conceived to en compass the study of the magnetic properties of dilute ran dom substitutional alloys, amorphous metallic alloys, amor phous magnetic semiconductors and the conventional glasses, including cha1cogenide, organic and inorganic glasses. These materials have heretofore been considered to be quite different because of the differences in their atomic struc tures. However, when the magnetic behavior of these mater ials is carefully examined it becomes clear that these materials exhibit certain similarities. For the first time at the International Symposium on Amorphous Magnetism held at Wayne State University in Detroit, Michigan on August 17 and 18, 1972, scientists working in these areas were assembled to examine the similarities of these systems. This volume contains a summary of the 9 invited talks, 23 delivered, contributed papers and an additional 12 contri buted papers whcih were not presented because of insuffic ient time in the program. This volume presents for the first time a collection of the most current theoretical and experimental studies in the area of amorphous magnetism. We wish to thank the authors of these papers for their outstanding cooperation in preparing their manuscripts and for editing our transcriptions from tape recordings of the discussions which followed their presentations. In addition, we wish to thank the participants at this conference whose enthusiasm and interest made the conference so successful."

Spis treści

Topics in Spin Glasses.- It’s a Random World.- Amorphous Antiferromagnetism in Some Transition Element-Phosphorus Pentoxide Glasses.- Magnetic Order in Alkaliborate and Aluminosilicate Glasses Containing Large Concentrations of Iron-Group Ions.- Antiferromagnetism in the Vanadium, Manganese and Iron Phosphate Glass Systems.- Magnetic Inhomogeneities in BaO-B203 ? Fe203 Oxide Glasses.- Magnetic Properties of an Iron-Rich Glass.- Electron Spin Resonance Studies of Ferrimagnetic Phases Precipitated in Simulated Lunar Glasses Heat Treated in the Presence of Oxygen.- Novel Amorphous Magnetic Materials: Magnetic and Mossbauer Studies on Iron Dispersions in Zeolites.- Novel Dispersions of Iron in Amorphous Glasslike Carbons: Exploratory Magnetic Studies.- Magnetic Susceptibility of Chalcogenide Glasses.- Long and Short Range Magnetic Interactions and Electric Switching in Highly Doped, “Amorphous” Ferromagnetic Semiconductors.- Magnetic Ordering in NaCl-Lattices with Structural Disorder.- The Low Temperature Magnetic Properties of Glassy and Crystalline Pd.775Cu.06Si.165.- Amorphous and Crystalline Selenium — A Mässbauer Effect Study.- Disorder and Strong Correlations in Narrow Energy Bands.- Occurrence of Local Magnetic Moments in Disordered Materials.- Onset of Magnetic Ordering in Random Substitutional Alloys.- Structural Aspects of Magnetic Interactions in Metallic Spin Glasses.- Low Field Magnetic Susceptibility of Dilute Alloys: Are Dilute CuMn and AuMn Magnetically Ordered?.- Calculations of Superparamagnetic Clustering in Random Alloys of Magnetic Atoms in Nonmagnetic Matrices.- Law and Order in Magnetic Glasses.- Spin Arrangements in Dilute Alloys.- Electrical Resistivity of a Spin-Glass Random Alloy: AuFe.- Nuclear Resonance and Magnetic Ordering in a Random Spin System: (LaGd)A12.- Occurrence of Local Moments and Ferromagnetism in Dilute Alloys.- Antiferromagnetic Instability in Substitutional Alloys.- Electrical Resistivity Anomaly in Mictomagnetic Alloys.- Anomalous Magnetic Properties of Mictomagnetic Fe-A1 Alloys.- Amorphous Magnetism in F.C.C. Vicalloy II.- Magnetic Properties of Amorphous Metallic Alloys.- Anomalies in Amorphous Kondo Alloys.- Some Structural and Magnetic Properties of Amorphous Cobalt-Phosphorus Alloys.- Low Temperature Heat Capacity of Disordered ZrZn2.- Ferromagnetism of Amorphous Iron Alloys.- Semi-Classical Theory of Spin Wave Excitations in Amorphous Ferromagnets.- Magnetic Properties, Anomalous Electrical Resistivities, and Specific Heats of Ordered and Disordered NiPt and Nearby Compositions.- Exchange Interactions in Strongly Paramagnetic Alloys.- Comments on the Hubbard Model of Magnetism in Disordered Transition Metal Alloys.- Amorphous Spin Polarization in a Tb-Fe Compound.- Neutron Scattering Observation and Theory of Spin-Waves in Disordered Magnetic Insulators.- Comments on Spin-Wave States in Substitutionally Disordered Antiferromagnets.- Amorphous Ferro- and Antiferromagnetism Within an RPA-CPA Theory.- Spin Waves in an Amorphous Heisenberg Ferromagret.- Density of Spin Wave States for Disordered Cubic Ferromagnets.- Theory of Spin-Waves in a Disordered Heisenberg Ferromagnet.- Cation Disorder and Magnetic Properties of Certain Garnet Type Crystals.