Neutron Scattering from Magnetic Materials (eBook)

Tapan Chatterji (Herausgeber)

eBook Download: EPUB

2005 | 1. Auflage
572 Seiten
Elsevier Science (Verlag)
978-0-08-045705-5 (ISBN)

Infos

Neutron Scattering from Magnetic Materials is a comprehensive account of the present state of the art in the use of the neutron scattering for the study of magnetic materials. The chapters have been written by well-known researchers who are at the forefront of this field and have contributed directly to the development of the techniques described. Neutron scattering probes magnetic phenomena directly. The generalized magnetic susceptibility, which can be expressed as a function of wave vector and energy, contains all the information there is to know about the statics and dynamics of a magnetic system and this quantity is directly related to the neutron scattering cross section. Polarized neutron scattering techniques raise the sophistication of measurements to even greater levels and gives additional information in many cases. The present book is largely devoted to the application of polarized neutron scattering to the study of magnetic materials. It will be of particular interest to graduate students and researchers who plan to investigate magnetic materials using neutron scattering.
· Written by a group of scientist who have contributed directly in developing the techniques described.
· A complete treatment of the polarized neutron scattering not available in literature.
· Gives practical hits to solve magnetic structure and determine exchange interactions in magnetic solids.
· Application of neutron scattering to the study of the novel electronic materials.

Inhalt

Cover 1
Contents 12
Preface 6
References 9
List of Contributors 10
Magnetic Neutron Scatteringneutron magnetic scattering 14
Introduction 16
Basic properties of the neutron 16
Neutron source 18
Neutron scattering 18
Nuclear neutron scattering 22
Magnetic neutron scattering 25
Concluding remarks 36
References 36
Magnetic Structuresmagnetic structures 38
Introduction 40
Determination of magnetic structures 41
Ferromagnetic and simple antiferromagnetic structures 44
Modulated magnetic structures 51
Complex modulated structures 53
Magnetic structures of novel electronic materials 81
Concluding remarks 100
Acknowledgment 101
References 101
Representation Analysis of Magnetic Structures 106
Introduction 108
Crystallographic preliminaries 109
Mathematics of representations 114
Analysis of magnetic structures 137
Practical working scheme 146
Application 148
References 163
Polarized Neutrons and Polarization Analysis 166
Introduction 168
Polarized neutrons 169
Polarized neutron scattering 171
Polarized neutron without polarization analysis: The flipping ratio method 177
Uniaxial (longitudinal) polarization analysis 201
Appendix: Atomic Slater functions and radial integrals 223
References 225
Spherical Neutron Polarimetry 228
Notation 230
Neutron polarimetry 230
Polarised neutron scattering 235
Magnetic domains 239
Magnetic structure determination using SNP 245
Determination of antiferromagnetic form factors 254
References 257
Magnetic Excitationsmagnetic excitation 258
Introduction 260
Experimental methods 260
Spin waves in localized electron systems 272
Spin waves in itinerant magnetic systems 293
Spin waves in CMR manganites 313
Concluding remarks 340
Acknowledgments 341
References 341
Paramagneticparamagnetic scattering and Critical Scatteringcritical scattering 346
Introduction 348
Universal critical phenomenon and static critical exponents 348
Magnetic critical scattering 350
Magnetic correlations above Tc 353
Concluding remarks 372
Acknowledgments 372
References 373
Inelastic Neutron Polarization Analysis 376
Introduction 378
Inelastic neutron polarimetry: Theory and practice 378
Application of the neutron polarization analysis 391
Conclusion 405
References 406
Polarized Neutron Reflectometry 410
Introduction 412
Fundamental theory of neutron reflectivity 414
Spin-dependent neutron wave function 425
Spin-dependent neutron reflectivity 437
Experimental methods 461
An illustrative application of PNR 463
Appendix 475
References 483
Small Angle Neutron Scatteringsmall angle neutron scattering Investigations of Magnetic Nanostructures 486
Introduction 488
Technique of small angle neutron scattering 489
Microstructure of magnetic colloids 499
Magnetic glasses with soft magnetic properties 521
Conclusion 529
Acknowledgments 530
Appendix 530
References 532
Neutron-Spin-Echo Spectroscopy and Magnetism 534
Introduction 536
Principles of neutron-spin-echo spectroscopy 537
Resolution of neutron-spin-echo spectrometers 542
Paramagnetic neutron-spin-echo 544
Measurement procedure of neutron-spin-echo 546
Neutron-spin-echo on spin glasses 547
Superparamagnetic fluctuations in monodomain iron particles 550
Dynamical cross-over in spin ice Ho2Ti2O7 551
Conclusions 554
Acknowledgements 554
References 554
Author Index 556
Subject Index 568

Produkt-Details

• Erscheint lt. Verlag: 29.11.2005
• Sprache: englisch
• Themenwelt: Naturwissenschaften ► Physik / Astronomie ► Elektrodynamik
• Themenwelt: Naturwissenschaften ► Physik / Astronomie ► Hochenergiephysik / Teilchenphysik
• Themenwelt: Technik ► Elektrotechnik / Energietechnik
• Themenwelt: Technik ► Maschinenbau
• ISBN-10: 0-08-045705-3 / 0080457053
• ISBN-13: 978-0-08-045705-5 / 9780080457055