Quantum Theory of Magnetism

ISBN-13: 9783540854159 / Angielski / Twarda / 2009 / 768 str.

Wolfgang Nolting; Anupuru Ramakanth

Opis

Magnetism is one of the oldest and most fundamental problems of Solid State Physics although not being fully understood up to now. On the other hand it is one of the hottest topics of current research. Practically all branches of modern technological developments are based on ferromagnetism, especially what concerns information technology. The book, written in a tutorial style, starts from the fundamental features of atomic magnetism, discusses the essentially single-particle problems of dia- and paramagnetism, in order to provide the basis for the exclusively interesting collective magnetism (ferro, ferri, antiferro). Several types of exchange interactions, which take care under certain preconditions for a collective ordering of localized or itinerant permanent magnetic moments, are worked out. Under which conditions these exchange interactions are able to provoke a collective moment ordering for finite temperatures is investigated within a series of theoretical models, each of them considered for a very special class of magnetic materials. The book is written in a tutorial style appropriate for those who want to learn magnetism and eventually to do research work in this field. Numerous exercises with full solutions for testing own attempts will help to a deep understanding of the main aspects of collective ferromagnetism.

Spis treści

Basic Facts.- Atomic Magnetism.- Diamagnetism.- Paramagnetism.- Exchange Interaction.- Ising Model.- Heisenberg Model.- Hubbard Model.

O autorze

Wolfgang Nolting, geb. am 13.3.1944, arbeitet auf dem Gebiet der Festkörpertheorie an der Humboldt-Universität zu Berlin. Er studierte Physik an der Universität Münster, wo er 1972 promoviert wurde. Es folgte ein Forschungsaufenthalt an der ETH Zürich und 1978 die Habilitation in Münster. Nach Professuren in Würzburg, Münster und an der Universidad de Valladolid in Spanien ist er seit 1994 Professor der Humboldt-Universität. Bekannt geworden ist Wolfgang Nolting unter anderem durch seine Lehrbuchreihe Grundkurs: Theoretische Physik , welche mittlerweile den Rang eines Standardwerkes in der Physikerausbildung erlangt hat.

Blurb

Magnetism is one of the oldest and most fundamental problems of Solid State Physics although not being fully understood up to now. On the other hand it is one of the hottest topic of current research. Practically all branches of modern technological developments are based on ferromagnetism, especially what concerns information technology. The book, written in a tutorial style, starts from the fundamental features of atomic magnetism, discusses the essentially single-particle problems of dia- and paramagnetism, in order to provide the basis for the exclusively interesting collective magnetism (ferro, ferri, antiferro). Several types of exchange interactions, which take care under certain preconditions for a collective ordering of localized or itinerant permanent magnetic moments, are worked out. Under which conditions these exchange interactions are able to provoke a collective moment ordering for finite temperatures is investigated within a series of theoretical models, each of them considered for a very special class of magnetic materials.

The book is written in a tutorial style appropriate for those who want to learn magnetism and eventually to do research work in this field. Numerous exercises with full solutions for testing own attempts will help to a deep understanding of the main aspects of collective ferromagnetism.