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Compton scattering and the allied techniques

N. Shiotani, H. M. Fretwell, and M. J. Cooper

in X-Ray Compton Scattering

Published in print:
2004
Published Online:
September 2007
ISBN:
9780198501688
eISBN:
9780191718045
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198501688.003.0011
Subject:
Physics, Atomic, Laser, and Optical Physics

This chapter places the work presented in the previous chapters on the electron momentum density and band structure in condensed matter in the context of other probes. Specifically, studies by ... More


Ising models on random graph

Marc Mézard and Andrea Montanari

in Information, Physics, and Computation

Published in print:
2009
Published Online:
September 2009
ISBN:
9780198570837
eISBN:
9780191718755
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198570837.003.0017
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This chapter studies two problems of statistical physics: the ferromagnet and the spin glass, on large random graphs with fixed degree profile. It describes the use of the replica symmetric cavity ... More


Statistical physics and probability theory

Marc Mézard and Andrea Montanari

in Information, Physics, and Computation

Published in print:
2009
Published Online:
September 2009
ISBN:
9780198570837
eISBN:
9780191718755
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198570837.003.0002
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This chapter introduces the basic concepts of statistical physics. The restrictive point of view adopted here keeps to classical (non-quantum) statistical physics and treats it as a branch of ... More


Advantages and Drawbacks Of Effective Theory

VOLOVIK GRIGORY E.

in The Universe in a Helium Droplet

Published in print:
2009
Published Online:
January 2010
ISBN:
9780199564842
eISBN:
9780191709906
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199564842.003.0006
Subject:
Physics, Condensed Matter Physics / Materials, Particle Physics / Astrophysics / Cosmology

The energy momentum tensor for the vacuum field which represents gravity is non-covariant, since the effective gravitational field obeys hydrodynamic equations rather than Einstein equations. ... More


Spin polarization in magnets

K. Takanashi and Y. Sakuraba

in Spin Current

Published in print:
2012
Published Online:
December 2013
ISBN:
9780199600380
eISBN:
9780191775062
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199600380.003.0005
Subject:
Physics, Condensed Matter Physics / Materials

This chapter explains how the exchange splitting between up- and down-spin bands in ferromagnets unexceptionally generates spin-polarised electronic states at the Fermi energy. The quantity of spin ... More


Spin Hall effect

S. Maekawa and S. Takahashi

in Spin Current

Published in print:
2012
Published Online:
December 2013
ISBN:
9780199600380
eISBN:
9780191775062
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199600380.003.0012
Subject:
Physics, Condensed Matter Physics / Materials

This chapter discusses the spin Hall effect that occurs during spin injection from a ferromagnet to a nonmagnetic conductor in nanostructured devices. This provides a new opportunity for ... More


Experimental observation of the spin Hall effect using electronic nonlocal detection

S. O. Valenzuela and T. Kimura

in Spin Current

Published in print:
2012
Published Online:
December 2013
ISBN:
9780199600380
eISBN:
9780191775062
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199600380.003.0014
Subject:
Physics, Condensed Matter Physics / Materials

This chapter shows how the spin Hall effect (SHE) has been described as a source of spin-polarised electrons for electronic applications without the need for ferromagnets or optical injection. ... More


Phase Transitions

Jochen Rau

in Statistical Physics and Thermodynamics: An Introduction to Key Concepts

Published in print:
2017
Published Online:
November 2017
ISBN:
9780199595068
eISBN:
9780191844300
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199595068.003.0008
Subject:
Physics, Theoretical, Computational, and Statistical Physics

At a phase transition two or more different phases may coexist, such as vapour and liquid. Phase transitions can be classified according to their order. A phase transition is of first order if going ... More


Beyond Mean-Field Models

A. Campa, T. Dauxois, D. Fanelli, and S. Ruffo

in Physics of Long-Range Interacting Systems

Published in print:
2014
Published Online:
October 2014
ISBN:
9780199581931
eISBN:
9780191787140
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199581931.003.0005
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This chapter aims at showing that the features occurring in mean-field models, described in the previous chapters, can be found also in the other long-range systems. The first four sections are ... More


Ferromagnetism and Antiferromagnetism

J. B. Ketterson

in The Physics of Solids

Published in print:
2016
Published Online:
December 2016
ISBN:
9780198742906
eISBN:
9780191821523
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198742906.003.0026
Subject:
Physics, Condensed Matter Physics / Materials

The vast majority of materials are either paramagnetic or diamagnetic, and have no magnetic moment in the absence of an external magnetic field. However, a small set of materials can have a ... More


Spin Hall Effect

S. Takahashi and S. Maekawa

in Spin Current

Published in print:
2017
Published Online:
December 2017
ISBN:
9780198787075
eISBN:
9780191829147
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198787075.003.0012
Subject:
Physics, Condensed Matter Physics / Materials

This chapter discusses the spin Hall effect that occurs during spin injection from a ferromagnet to a nonmagnetic conductor in nanostructured devices. This provides a new opportunity for ... More


Experimental observation of the spin Hall effect using electronic nonlocal detection

S. O. Valenzuela and T. Kimura

in Spin Current

Published in print:
2017
Published Online:
December 2017
ISBN:
9780198787075
eISBN:
9780191829147
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198787075.003.0014
Subject:
Physics, Condensed Matter Physics / Materials

This chapter shows how the spin Hall effect (SHE) has been described as a source of spin-polarized electrons for electronic applications without the need for ferromagnets or optical injection. ... More


Spontaneously Broken Symmetries

John Iliopoulos

in The Origin of Mass: Elementary Particles and Fundamental Symmetries

Published in print:
2017
Published Online:
December 2017
ISBN:
9780198805175
eISBN:
9780191843259
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198805175.003.0005
Subject:
Physics, Particle Physics / Astrophysics / Cosmology, History of Physics

In this chapter we present the solution to the problem of mass. It is based on the phenomenon of spontaneous symmetry breaking (SSB). We first give the example of buckling, a typical example of ... More


Continuous phase transitions

Andrew M. Steane

in Thermodynamics: A complete undergraduate course

Published in print:
2016
Published Online:
January 2017
ISBN:
9780198788560
eISBN:
9780191830426
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198788560.003.0025
Subject:
Physics, Theoretical, Computational, and Statistical Physics

The general phenomenon of continuous phase transitions is discussed, and treated by the Landau mean field approach. First some illustrative examples are discussed, and the concepts of order parameter ... More


Spin textures in quantum Hall systems

Benoît Douçot

in Topological Aspects of Condensed Matter Physics: Lecture Notes of the Les Houches Summer School: Volume 103, August 2014

Published in print:
2017
Published Online:
March 2017
ISBN:
9780198785781
eISBN:
9780191827600
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198785781.003.0011
Subject:
Physics, Condensed Matter Physics / Materials

The subject of these lecture notes combines several different manifestations of topology in a condensed matter system. The most classical of these is through the notion of texture. By this is meant ... More


Spin polarization in magnets

K. Takanashi and Y. Sakuraba

in Spin Current

Published in print:
2017
Published Online:
December 2017
ISBN:
9780198787075
eISBN:
9780191829147
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198787075.003.0005
Subject:
Physics, Condensed Matter Physics / Materials

This chapter explains how the exchange splitting between up- and down-spin bands in ferromagnets unexceptionally generates spin-polarized electronic states at the Fermi energy. The quantity of spin ... More


Integrable Models

S. G. Rajeev

in Fluid Mechanics: A Geometrical Point of View

Published in print:
2018
Published Online:
October 2018
ISBN:
9780198805021
eISBN:
9780191843136
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198805021.003.0009
Subject:
Physics, Soft Matter / Biological Physics, Condensed Matter Physics / Materials

Some exceptional situations in fluid mechanics can be modeled by equations that are analytically solvable. The most famous example is the Korteweg–de Vries (KdV) equation for shallow water waves in a ... More


Magnetic Materials: From Isolated Moments to Ordered Arrangements

Kannan M. Krishnan

in Fundamentals and Applications of Magnetic Materials

Published in print:
2016
Published Online:
December 2016
ISBN:
9780199570447
eISBN:
9780191813504
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199570447.003.0003
Subject:
Physics, Condensed Matter Physics / Materials

The magnetic behavior of materials can be quite diverse with a wide range of susceptibilities. All materials exhibit diamagnetism with a very small, negative susceptibility and it is predominant in ... More


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