Handbook of Magnetic Materials, Volume 18

Cover......Page 1
Handbook of Magnetic Materials, Volume 18......Page 2
ISBN: 9780080548142......Page 3
Preface to Volume 18......Page 4
CONTRIBUTORS......Page 8
01 Magnetic Properties of Filled Skutterudites......Page 9
Introduction......Page 10
Synthesis of Filled Skutterudites......Page 11
Synthesis under ambient pressure......Page 12
Synthesis under high pressures......Page 14
Characteristics of the band structure and strong c-f hybridization......Page 16
The interaction among multipoles via a main conduction band......Page 19
Crystalline electric field effect......Page 21
La-based filled skutterudites......Page 23
Ce-based filled skutterudites......Page 27
General trend of the Pr-based filled skutterudites......Page 34
Heavy-fermion and multipolar ordered states in PrFe4P12......Page 37
Metal-insulator transition in PrRu4P12......Page 42
Heavy-fermion superconductivity and quadrupolar ordering in PrOs4Sb12......Page 45
Normal state properties: multipole moments of the localized 4f-electrons......Page 46
Quadrupolar excitons in the Pr-ion lattice......Page 50
Unconventional superconducting properties in PrOs4Sb12......Page 51
Symmetry of superconducting order parameter......Page 52
Possible mechanisms of superconductivity in PrOs4Sb12......Page 54
Other Pr-based filled skutterudites......Page 55
Nd-based filled skutterudites......Page 58
Sm-based filled skutterudites......Page 0
Heavy-fermion ferromagnet SmFe4P12......Page 64
Heavy-fermion state in SmOs4Sb12 robust against magnetic field......Page 66
Other Sm-based skutterudites......Page 71
Eu-based filled skutterudites......Page 72
Gd-based filled skutterudites......Page 73
Tb-, Dy-, Ho-, Er-, and Tm-based filled skutterudites......Page 74
Yb-based filled skutterudites......Page 76
Filled skutterudites with actinoid ions......Page 77
AT4Sb12 (Aequalsalkaline and alkaline earth; TequalsFe, Ru, Os)......Page 80
Fe4Sb12-based filled skutterudites with monovalent guests......Page 81
Alkaline earth-filled skutterudites with TequalsRu, Os......Page 82
Ge cage-forming filled skutterudite APt4Ge12 (AequalsSr, Ba, La, Ce, Pr, Nd, Eu, U, Th)......Page 83
Summary......Page 86
Acknowledgments......Page 87
References......Page 88
Appendix A......Page 100
02 Spin Dynamics in Nanometric Magnetic Systems......Page 119
Introduction......Page 120
Fundamentals of FMR theory......Page 124
Free-energy density and magneto-crystalline anisotropies......Page 127
Dipolar interactions between particles......Page 133
The magnetic surface: surface anisotropy and boundary conditions......Page 137
Standing spin-wave modes......Page 140
Resonance linewidth and relaxation processes......Page 150
Stoner-Wohlfarth model......Page 156
Nanoparticle assemblies......Page 160
Nanostructured arrays......Page 172
Spin-Current-Induced Dynamics in Magnetic Nanostructures......Page 194
Theoretical background......Page 197
Experimental observation of spin-current-induced magnetisation dynamics......Page 209
Superparamagnetic Effects in Magnetic Nanoparticles and FMR......Page 226
Random nanoparticle assemblies......Page 235
Discontinuous multilayers......Page 237
Three-dimensional assemblies......Page 244
Regular Nanostructured Arrays......Page 274
Nanodots: square, rectangular and circular......Page 275
Antidots......Page 297
Nanowires......Page 316
Nanorings......Page 330
Summary......Page 341
References......Page 344
03 Magnetic Sensors - Principles and Applications......Page 355
Introduction......Page 356
Materials for Magnetic Sensors......Page 357
Soft magnetic materials......Page 358
Perming......Page 359
Anisotropy......Page 360
Induced anisotropy and magnetic aftereffect......Page 361
Shape anisotropy......Page 362
Noise......Page 364
Temperature stability......Page 365
Hall sensors......Page 366
Flux concentrators......Page 367
Semiconductor magnetoresistors......Page 368
Technology and sensitivity......Page 370
AMR bridge and barber poles......Page 372
Flipping......Page 373
Magnetic feedback......Page 374
GMR and SDT sensors......Page 375
Fluxgate sensors......Page 379
Vacquier-type fluxgate......Page 380
Racetrack......Page 381
Fluxgate magnetometers......Page 384
Digital fluxgate magnetometers......Page 385
Miniature fluxgates......Page 386
Orthogonal fluxgates......Page 389
SQUID......Page 390
Overhauser magnetometers......Page 391
Induction magnetometers......Page 392
GMI......Page 393
Other devices......Page 396
Inductance and transformer sensors......Page 399
Position sensor with permanent magnets......Page 401
Magnetic proximity switches......Page 403
Speed and flow sensors......Page 405
Torque sensors......Page 406
Cross-type permeability-based torque sensors......Page 407
Polarized band sensors......Page 408
Instrument current transformers......Page 409
DC current transformers......Page 410
AMR current sensors......Page 411
Other principles for current sensing......Page 412
Current clamps......Page 414
Position tracking......Page 415
Antitheft systems......Page 416
Detection of ferromagnetic objects......Page 417
Space research and geophysics......Page 418
Medical distance and position sensors......Page 419
Conclusions......Page 420
References......Page 422
Manufacturers\r......Page 428
AUTHOR INDEX......Page 429
SUBJECT INDEX......Page 461
MATERIALS INDEX......Page 463