This first focused treatment on a hot topic highlights fundamental aspects as well as technological applications arising from a fascinating area of condensed matter physics. The editors have excellent track records and, in light of the broadness of the topic, retain the focus on antiferromagnetic oxides. They thus cover such topics as dichroism in x-ray absorption, non-magnetic substrates, exchange bias, ferromagnetic-antiferromagnetic interface coupling and oxide multilayers, as well as imaging using soft x-ray microscopy. The result is a very timely monograph for solid state physicists and chemists, materials scientists, electrical engineers, physicists in industry, physical laboratory technicians, and suppliers of sensors.

[Truncated abstract] Ferromagnetic resonance is a technique which uses coherent spin precession, or standing spin wave modes, to infer the local magnetic conditions in a ferromagnet. This dissertation demonstrates how observation of multiple standing spin wave modes can be used to probe the properties of magnetic interfaces. Ferromagnetic resonance experiments using a broadband vector network analyser are described in the study of (1) exchange biased interfaces, (2) multiferroic interfaces and (3) patterned films (periodic ferromagnet/air interfaces). Calculations are also presented that relate the experimentally measured resonance frequencies to properties of the material interfaces. Using coplanar waveguide ferromagnetic resonance, pinning of the lowest energy spin wave thickness mode in Ni80Fe20/Ir25Mn75 exchange biased bilayers was studied for a range of Ir25Mn75 thicknesses. It is shown that pinning of the standing mode can be used to amplify, relative to the fundamental resonance, frequency shifts associated with exchange bias. The shifts provide a unique `fingerprint' of the exchange bias and can be interpreted in terms of an e ective ferromagnetic film thickness and ferromagnet/antiferromagnet interface anisotropy. Thermal effects are studied for ultra-thin antiferromagnetic Ir25Mn75 thicknesses, and the onset of bias is correlated with changes in the pinning elds. The pinning strength magnitude is found to grow with cooling of the sample, while the effective ferromagnetic film thickness simultaneously decreases. These results suggest that exchange bias involves some deformation of magnetic order in the interface region. To further explore the exchange bias mechanism in the Ni80Fe20/Ir25Mn75 system using standing spin wave modes, a series of samples containing a gold dusting at the interface were measured. Combining the experimental data with a discretised model, parameters relating to interface exchange coupling and modification of interface magnetisation are calculated. Ferromagnet/antiferromagnet coupling is found to slowly weaken as gold thickness is increased, and undergoes a sudden drop at 1.5 A of gold. When the ferromagnet and antiferromagnet are anti-aligned, the interface magnetisation is suppressed. These findings imply that magnetisation states of the interface region depend on the ferromagnet orientation with respect to the bias direction. Multiferroic materials possess both charge and magnetic ordering, and so may provide electric control over magnetic interface e ects when coupled to a ferromagnet. La0:7Sr0:3MnO3/BiFeO3 and La0:7Sr0:3MnO3/PbZr20Ti80O3 epitaxial heterostructures were grown on SrTiO3 substrates. Spin wave resonances are used to study interface properties of the ferromagnetic La0:7Sr0:3MnO3. It is found that the addition of the BiFeO3 or PbZr20Ti80O3 causes out-of-plane surface pinning of the La0:7Sr0:3MnO3. New limits are placed on the exchange constant D of La0:7Sr0:3MnO3 grown on these substrates and we con rm the presence of uniaxial and biaxial anisotropies caused by the SrTiO3 substrate...

We present evidence for the creation of an exchange spring in an antiferromagnet due to exchange coupling to a ferromagnet. X-ray magnetic linear dichroism spectroscopy on single crystal Co/NiO(001) shows that a partial domain wall is wound up at the surface of the antiferromagnet when the adjacent ferromagnet is rotated by a magnetic field. We determine the interface exchange stiffness and the antiferromagnetic domain wall energy from the field dependence of the direction of the antiferromagnetic axis, the antiferromagnetic pendant to a ferromagnetic hysteresis loop. The existence of a planar antiferromagnetic domain wall, proven by our measurement, is a key assumption of most exchange bias models.

Heterostructures consist of combinations of different materials, which are in contact through at least one interface. Magnetic heterostructures combine different physical properties which do not exist in nature. This book provides the first comprehensive overview of an exciting and fast developing field of research, which has already resulted in numerous applications and is the basis for future spintronic devices.

This handbook brings together, under a single cover, all aspects of the chemistry, physics, and engineering of surfaces and interfaces of materials currently studied in academic and industrial research. It covers different experimental and theoretical aspects of surfaces and interfaces, their physical properties, and spectroscopic techniques that have been applied to a wide class of inorganic, organic, polymer, and biological materials. The diversified technological areas of surface science reflect the explosion of scientific information on surfaces and interfaces of materials and their spectroscopic characterization. The large volume of experimental data on chemistry, physics, and engineering aspects of materials surfaces and interfaces remains scattered in so many different periodicals, therefore this handbook compilation is needed.The information presented in this multivolume reference draws on two decades of pioneering research on the surfaces and interfaces of materials to offer a complete perspective on the topic. These five volumes-Surface and Interface Phenomena; Surface Characterization and Properties; Nanostructures, Micelles, and Colloids; Thin Films and Layers; Biointerfaces and Applications-provide multidisciplinary review chapters and summarize the current status of the field covering important scientific and technological developments made over past decades in surfaces and interfaces of materials and spectroscopic techniques with contributions from internationally recognized experts from all over the world. Fully cross-referenced, this book has clear, precise, and wide appeal as an essential reference source long due for the scientific community. The complete reference on the topic of surfaces and interfaces of materialsThe information presented in this multivolume reference draws on two decades of pioneering researchProvides multidisciplinary review chapters and summarizes the current status of the fieldCovers important scientific and technological developments made over past decades in surfaces and interfaces of materials and spectroscopic techniquesContributions from internationally recognized experts from all over the world

Fachlich auf höchstem Niveau, visuell überzeugend und durchgängig farbig illustriert: Das ist die neue Auflage der praxisbewährten Einführung in spezialisierte elektronische Materialien und Bauelemente aus der Informationstechnologie. Über ein Drittel des Inhalts ist neu, alle anderen Beiträge wurden gründlich überarbeitet und aktualisiert.

Selected modern aspects of artificially layered structures and bulk materials involving antiferromagnetic long-range order are the main themes of this book. Special emphasis is laid on the prototypical behavior of Ising-type model systems. They play a crucial role in the field of statistical physics and, in addition, contribute to the basic understanding of the exchange bias phenomenon in MBE-grown magnetic heterosystems. Throughout the book, particular attention is given to the interplay between experimental results and their theoretical description, ranging from the famous Lee-Yang theory of phase transitions to novel mechanisms of exchange bias.