This is the first monograph on nanomagnetism. It emphasizes general principles and mechanisms relevant to the understanding of the intriguing properties of nanomagnetic objects including thin films, nanoparticles, nanowires, nanodisks and nanorings.

The ?eld of Nanomagnetism is a young branch of the study of magnetic phenomena, phenomena that have been a source of amazement and stimulus for speculation for more than 3,000 years [1]. Nanomagnetism, despite being a young area, has already affected every sphere of human activity, through its fundamental contribution to make the computer an ubiquitous instrument for communication, control of industrial processes, medical diagnosis, scienti?c investigation, or leisure. The studies of particulate and thin ?lm magnetic media and other related questions led to improvements that have mul- plied, in ?ve decades, the amount of data that can be encoded into a unitary area by some 50 million times. The 2007 Nobel Prize in Physics, awarded to Albert Fert and Peter Grünberg, is an important recognition of the extraordinary achievements of the research in Na- magnetism. The unfolding revolution brought about by Spintronics is intimately c- nected, and enhances the relevance of these developments. Nanomagnetism already encompasses a very wide range of remarkable pr- erties and phenomena, as illustrated in the case of thin ?lms, for example, by the volumes of the series on Ultrathin Magnetic Structures [2].

First monograph on nanomagnetism Covers the basics of nanomagnetism and includes also magnetic domains, magnetic microparticles, low-dimensional systems as well as thin films and multilayers Both a reference work for researchers and a textbook for graduate students in this field of the 2007 Nobel Prize in physics Includes supplementary material: sn.pub/extras

Autorentext

Alberto Passos Guimarães studied physics at the University of Rio de Janeiro and obtained his Ph.D. at the University of Manchester, England. He was a visiting scientist at MIT, Cambridge, and at the Physics Institute in Uppsala, Sweden. He has worked in the field of magnetism for several years, initially studying the magnetic properties of rare-earth intermetallic compounds with Mossbauer Spectroscopy and zero-field nuclear magnetic resonance (NMR), and also studied the Magnetocaloric Effect in intermetallic compounds. In recent years he has turned his attention to nanoscale systems, such as small particles, nanowires, nanorings and nanodisks studied with different experimental techniques and micromagnetic simulation. He is the author of Magnetism and Magnetic Resonance in solids (1998) and From Lodestone to Supermagnets: Understanding Magnetic Phenomena (2005), and has also been active in the popularization of science. He is now Emeritus Researcher at the Brazilian Centerfor Research in Physics (CBPF) and he is a member of the Brazilian Academy of Sciences.

Klappentext

The book deals with the novel field of Nanomagnetism, the study of magnetic samples that have at least one dimension in the nanoscopic range. Nanomagnetism has helped to shape the modern world through the contribution of this discipline to the rapid evolution of high- density magnetic recording. This process has made the hard-disk-equipped personal computer a part of our lives. The approach of this succinct book is to emphasize general principles and mechanisms that are relevant for the understanding of the intriguing properties of nanomagnetic objects, including thin films, nanoparticles, nanowires, nanodisks and nanorings.

Inhalt
The Basis of Nanomagnetism.- Magnetic Domains.- Magnetism of Small Particles.- Magnetism of Thin Films and Multilayers.- to Magnetotransport.- Magnetism of Nanodisks, Nanorings, and Nanowires.- Magnetic Recording.