This easily accessible description charts the historical development of magnetism - dating back some three thousand y ears. Alberto P. Guimaraes starts with the Greeks, with the first records of magnetism, and ends with hard disks and magnetic resonance imaging. Nowadays every electric and electronic device involves the use of magnets, such that magnetic devices, including magnetic media and recording equipment, represent a world market of over 100 billion dollars each year. Enjoyable reading for graduates, physics students, libraries, public libraries, school libraries, those interested in the natural sciences, lay readers, historians of physics.

The inspiration for this book can be traced back many years to two major works that in?uenced the author’s outlook on applied physics: FerromagnetismusbyR. Becker,W. D ̈ oring (Springer, Berlin 1939), and Ferromagnetism by R. M. Bozorth (IEEE Press, New York 1951). The former work is a collection of lectures held in the 1930s for ‘technicians’ attending a technical college. The German language in which the work was originally written was extremely convenient for the author of this present book, as it was for a long time the only comfortable technical language in an English speaking environment. Later on, upon encountering the work by Bozorth, it was a relief to see the clarity and eloquence of the subjects presented in English, despite the impressive thickness of the book. Bozorth’s work still constitutes a practical review for anyone in a multidisciplinary industry who comes across the various manifestations of magnetism. The popularity of both works is so enduring that they are regarded as highly academic, and yet extremely readable, a reference in their own right, still attracting many readers these days in industry and academia. The ?eld of magnetism progressed immensely in the twentieth century, and shows no signs of slowing down in the present one. It has become so vast that it is quite often viewed only in its parts, rather than as a whole. In today’smyriadofapplications,especiallyonananoscale,andtheirchangeable implications mostly on a macroscale, it often seems that di?erent aspects of reported work on magnetism are scattered and unrelated.

Covering basic physical concepts, experimental methods, and applications, this book is an indispensable text on the fascinating science of magnetism, and an invaluable source of practical reference data. Accessible, authoritative, and assuming undergraduate familiarity with vectors, electromagnetism and quantum mechanics, this textbook is well suited to graduate courses. Emphasis is placed on practical calculations and numerical magnitudes - from nanoscale to astronomical scale - focussing on modern applications, including permanent magnet structures and spin electronic devices. Each self-contained chapter begins with a summary, and ends with exercises and further reading. The book is thoroughly illustrated with over 600 figures to help convey concepts and explain ideas clearly. Easily digestible tables and data sheets provide a wealth of useful information on magnetic properties. The thirty-eight principal magnetic materials, and many more related compounds, are treated in detail.

This book contains much of the lost history of the development of quantum mechanics. The theory is controversial. This book explains why by going to the very foundations of Quantum Mechanics directly from the mouths of its inventors, the honored and famous scientists. It is a telling exposé and a serious but almost irreverent treatment of atomic science that tacitly suggests outright fraud, blind denial of facts, and overly enthusiastic adoption of slanted interpretations of data. Although written for those familiar with quantum mechanics, it is not written as a technical article, but informally for the educated reader. It is hard-hitting and controversial, but researched and well-referenced with over 200 quotations from 97 sources. Using historical quotations by the founders of QM, this book suggests that a different theory of the atom can be and should have been introduced without resorting to assumptions that defy evidence and deny rationality, but rather relying on existing empirical data.

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].

Cell separation is at the core of current methods in experimental biology and medicine. Its importance is illustrated by the large number of physical and biochemical principles that have been evaluated for application to cell separation. The development of cell separation methods is driven by the needs of biological and medical research, and the ever-increasing demands for sensitivity, selectivity, yield, timeliness and economy of the process. The interdisciplinary nature of research in this area and the volume of information available in research publications and conferences necessitates a basic description of the fundamental processes involved in magnetic cell separation that may help the user in navigating this wealth of information available online and in scientific publications. This book will appeal to researchers in many areas utilizing this technique, including those working in cell biology, clinical research, inorganic chemistry, biochemistry, chemical engineering, materials science, physics and electrical engineering. - Provides examples of how to calculate the volume magnetic susceptibility, a fundamental quantity for calculating the magnetic force acting on a cell, from various types of magnetic susceptibilities available in literature - Introduces the elements of magnetostatics as they apply to cell magnetization and the magnetization of magnetic micro- and nano- particles used for cell separation - Describes the parameters used to determine cell magnetophoresis