Magnetic Nano- and Microwires: Design, Synthesis, Properties and Applications, Third Edition presents the state of the art in research on the curvature of magnetic nanostructures, a topic where observed novel phenomena form the basis of a number of many new applications.
Part I explores advanced designs and techniques for the synthesis, growth, and processing of cylindrical magnetic nanowires, nanotubes, and their arrays, as well as of nanowire heterostructures. Methods such as electrodeposition, atomic layer deposition, focused-electron/ion-beam-induced deposition, epitaxial growth by chemical vapor transport or ultrarapid solidification are covered. The engineering of anodic membranes as templates for electrochemical patterning and of modulations of nanowires is also discussed.
Part II addresses the magnetization processes and derived properties of curved magnetic nanostructures. This includes arrays of cylindrical nanowires, and in particular also considers individual nanowires where the effects of curvature together with compositional and diameter modulations are observed. Helical and exotic vortex-transverse complex domain configurations and skyrmion tubes are investigated together with Bloch point domain walls and complex rotational mechanisms involved in the remagnetization processes, in addition to magnetotransport properties and the action of electrical current pulses.
Part III focusses on emerging applications of nano- and microwires. It reviews applications where nanowire arrays are used or proposed, including magnetocaloric, thermoelectric for spin caloritronics and thermopower, magnetostrictive sensors and transducers, and biomedical and oncological applications such as robotics and swimmers. A number of devices that makes use of magnetic microwires as sensing elements are also discussed, including advanced flux-gate field sensors, microwave and electromagnetic shielding devices, and tunable magnetic hybrid composites.
1. 9.1 Introduction - p. 269 2. 9.2 Fundamentals of magnetic materials - p. 275 3. 9.3 Analytic geometry of plane and space curves - p. 286 4. 9.4 Curvilinear micromagnetism of thin wires and ribbons - p. 292 5. 9.4.1 Toolbox of curvilinear magnetism - p. 292 6. 9.4.2 Ground states - p. 299 7. 9.4.2.1 Effective magnetic field stemming from geometry - p. 299 8. 9.4.2.2 Ground states in planar systems - p. 300 9. 9.4.2.3 Effects of a finite torsion on the ground state - p. 304 10. 9.4.3 Magnetoelectric composites based on deformable nanohelices - p. 310 11. 9.5 Geometry-driven magnetoelectricity - p. 312 12. 9.6 Conclusions and outlook - p. 322 13. 10. Curvature effects in 3D magnetic nanohelices - p. 339 14. 11. Thermal conductivity of magnetic nanowires - p. 371 15. 11.1 Fabrication methods of magnetic nanowires - p. 371 16. 11.2 Thermal carrier transport theory - p. 374 17. 11.3 Methods for measuring thermal conductivity of magnetic nanowires - p. 387 18. 11.4 Recent advances in the thermal conductivity of magnetic nanowires - p. 396 19. 11.5 Conclusion - p. 410 20. 12. Transient skyrmion tubes and emergent electrodynamics in ferromagnetic nanowires - p. 413 21. 13. Domain wall dynamics in cylindrical nanowires - p. 433 22. 14. Spin texture and magnetization dynamics in cylindrical nanowires with local compositional modulations: An experimental approach - p. 455 23. 15. Nanoscale magnetic imaging of chemically modulated FeCo nanowires - p. 475 24. 16. Scanning nitrogen-vacancy center magnetometry for non-perturbative and ultra-scaled magnetic imaging - p. 487 25. 17. Amorphous glass-coated microwires investigated by magneto-optical Kerr effect - p. 511 26. 18. Low Curie temperature amorphous microwires: Magnetization reversal and magnetoimpedance near Tc - p. 533 27. 19. Domain wall dynamics in curved nanowires - p. 551 28. 19.1 Introduction - p. 551 29. 19.2 Theory on magnetization dynamics in curvilinear systems - p. 552 30. 19.3 Transverse domain wall dynamics in bent nanowires - p. 562 31. 19.4 Some experimental results on DW motion in curved NWs - p. 581 32. 19.5 Conclusions - p. 584 33. 20. Magnonics in cylindrical geometry - p. 591 34. 20.1 Status - p. 591 35. 20.2 Spin-wave theory in cylindrical magnetic nanotubes - p. 594 36. 20.3 Finite-element micromagnetic modeling of cylindrical nanotubes - p. 605 37. 20.4 The magnonic spectrum of cylindrical nanotubes - p. 608 38. 20.5 From flat to curvilinear magnetic shells - p. 616 39. 20.6 Current and future challenges - p. 621 40. Part Three. Technological applications - p. P3 41. 21. 3D magnetic nanowire networks for multistate memristors and unconventional computing - p. 633 42. 22. Magneto-thermoelectric effects in magnetic nanowire networks - p. 657 43. 23. Bioapplications of magnetic nanobars: Nanowarming and bioidentification - p. 679 44. 24. Magnetic nanowires in small-scale medical robotics - p. 703 45. 25. The role of magnetic field and magnetic nanowires in next-generation antimicrobial materials - p. 723 46. 26. Magnetic microwire rheometry in the life sciences - p. 743 47. 27. Contactless sensing using magnetically bistable microwires - p. 753 48. 28. Development of GSR sensor - p. 801 49. 29. Scattering of electromagnetic waves by metallic microwires - p. 847 50. 29.1 Impedance and magnetoimpedance of thin ferromagnetic wires - p. 847 51. 29.2 Scattering of electromagnetic waves by ferromagnetic wire - p. 856 52. 29.3 Tuning reflection coefficients by mixing different electromagnetic media - p. 872 53. 29.4 Reflection coefficient and attenuation of reflected microwaves - p. 880 54. 29.5 From theory to practice: Applications - p. 887 55. 29.6 Conclusions - p. 897 56. 30. Ferromagnetic microwires-enabled multifunctional composites: Latest progress - p. 903 57. Index - p. 951
Magnetic Nano- and Microwires: Design, Synthesis, Properties and Applications, Third Edition presents the state of the art in research on the curvature of magnetic nanostructures, a topic where observed novel phenomena form the basis of a number of many new applications.
Part I explores advanced designs and techniques for the synthesis, growth, and processing of cylindrical magnetic nanowires, nanotubes, and their arrays, as well as of nanowire heterostructures. Methods such as electrodeposition, atomic layer deposition, focused-electron/ion-beam-induced deposition, epitaxial growth by chemical vapor transport or ultrarapid solidification are covered. The engineering of anodic membranes as templates for electrochemical patterning and of modulations of nanowires is also discussed.
Part II addresses the magnetization processes and derived properties of curved magnetic nanostructures. This includes arrays of cylindrical nanowires, and in particular also considers individual nanowires where the effects of curvature together with compositional and diameter modulations are observed. Helical and exotic vortex-transverse complex domain configurations and skyrmion tubes are investigated together with Bloch point domain walls and complex rotational mechanisms involved in the remagnetization processes, in addition to magnetotransport properties and the action of electrical current pulses.
Part III focusses on emerging applications of nano- and microwires. It reviews applications where nanowire arrays are used or proposed, including magnetocaloric, thermoelectric for spin caloritronics and thermopower, magnetostrictive sensors and transducers, and biomedical and oncological applications such as robotics and swimmers. A number of devices that makes use of magnetic microwires as sensing elements are also discussed, including advanced flux-gate field sensors, microwave and electromagnetic shielding devices, and tunable magnetic hybrid composites.
1. 9.1 Introduction - p. 269 2. 9.2 Fundamentals of magnetic materials - p. 275 3. 9.3 Analytic geometry of plane and space curves - p. 286 4. 9.4 Curvilinear micromagnetism of thin wires and ribbons - p. 292 5. 9.4.1 Toolbox of curvilinear magnetism - p. 292 6. 9.4.2 Ground states - p. 299 7. 9.4.2.1 Effective magnetic field stemming from geometry - p. 299 8. 9.4.2.2 Ground states in planar systems - p. 300 9. 9.4.2.3 Effects of a finite torsion on the ground state - p. 304 10. 9.4.3 Magnetoelectric composites based on deformable nanohelices - p. 310 11. 9.5 Geometry-driven magnetoelectricity - p. 312 12. 9.6 Conclusions and outlook - p. 322 13. 10. Curvature effects in 3D magnetic nanohelices - p. 339 14. 11. Thermal conductivity of magnetic nanowires - p. 371 15. 11.1 Fabrication methods of magnetic nanowires - p. 371 16. 11.2 Thermal carrier transport theory - p. 374 17. 11.3 Methods for measuring thermal conductivity of magnetic nanowires - p. 387 18. 11.4 Recent advances in the thermal conductivity of magnetic nanowires - p. 396 19. 11.5 Conclusion - p. 410 20. 12. Transient skyrmion tubes and emergent electrodynamics in ferromagnetic nanowires - p. 413 21. 13. Domain wall dynamics in cylindrical nanowires - p. 433 22. 14. Spin texture and magnetization dynamics in cylindrical nanowires with local compositional modulations: An experimental approach - p. 455 23. 15. Nanoscale magnetic imaging of chemically modulated FeCo nanowires - p. 475 24. 16. Scanning nitrogen-vacancy center magnetometry for non-perturbative and ultra-scaled magnetic imaging - p. 487 25. 17. Amorphous glass-coated microwires investigated by magneto-optical Kerr effect - p. 511 26. 18. Low Curie temperature amorphous microwires: Magnetization reversal and magnetoimpedance near Tc - p. 533 27. 19. Domain wall dynamics in curved nanowires - p. 551 28. 19.1 Introduction - p. 551 29. 19.2 Theory on magnetization dynamics in curvilinear systems - p. 552 30. 19.3 Transverse domain wall dynamics in bent nanowires - p. 562 31. 19.4 Some experimental results on DW motion in curved NWs - p. 581 32. 19.5 Conclusions - p. 584 33. 20. Magnonics in cylindrical geometry - p. 591 34. 20.1 Status - p. 591 35. 20.2 Spin-wave theory in cylindrical magnetic nanotubes - p. 594 36. 20.3 Finite-element micromagnetic modeling of cylindrical nanotubes - p. 605 37. 20.4 The magnonic spectrum of cylindrical nanotubes - p. 608 38. 20.5 From flat to curvilinear magnetic shells - p. 616 39. 20.6 Current and future challenges - p. 621 40. Part Three. Technological applications - p. P3 41. 21. 3D magnetic nanowire networks for multistate memristors and unconventional computing - p. 633 42. 22. Magneto-thermoelectric effects in magnetic nanowire networks - p. 657 43. 23. Bioapplications of magnetic nanobars: Nanowarming and bioidentification - p. 679 44. 24. Magnetic nanowires in small-scale medical robotics - p. 703 45. 25. The role of magnetic field and magnetic nanowires in next-generation antimicrobial materials - p. 723 46. 26. Magnetic microwire rheometry in the life sciences - p. 743 47. 27. Contactless sensing using magnetically bistable microwires - p. 753 48. 28. Development of GSR sensor - p. 801 49. 29. Scattering of electromagnetic waves by metallic microwires - p. 847 50. 29.1 Impedance and magnetoimpedance of thin ferromagnetic wires - p. 847 51. 29.2 Scattering of electromagnetic waves by ferromagnetic wire - p. 856 52. 29.3 Tuning reflection coefficients by mixing different electromagnetic media - p. 872 53. 29.4 Reflection coefficient and attenuation of reflected microwaves - p. 880 54. 29.5 From theory to practice: Applications - p. 887 55. 29.6 Conclusions - p. 897 56. 30. Ferromagnetic microwires-enabled multifunctional composites: Latest progress - p. 903 57. Index - p. 951
