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The exhaustive list of topics in Physics of Magnetic Recording and Recording Media in which we provide Help with Homework Assignment and Help with Project is as follows:

  • Types of magnetic anisotropy energies; Magnetic anisotropy and Magnetostriction;
  • Soft and hard magnetic materials; Stoner-Wohlfarth theory
  • Magnetoelectronics: Electronic structure of normal metals; ferromagnetic metals and Half-metals.
  • Spin-dependent transport; Spin polarization.
  • Recording and Play Back Theories: Recording model approach; Media magnetization;
  • Setting recording level; Erasure and overwrite;
  • Recording zone; Recording losses; Flux level;
  • Play back loss; Spacing loss; Coating thickness loss; Response to a transition.
  • Aspects of Magnetic Recording Head: Magnetic circuits; Eddy current loss;
  • Selection of core materials;
  • Magnetoresistance; Giant Magnetoresistance (GMR) Heads; Tunneling Magnetoresistance (TMR) heads;
  • Spin Valves;
  • Field from Magnetic Heads; High-gradient heads;
  • Perpendicular head fields; Response of probe heads;
  • Shielding; Flux linkage; Flux leakage.
  • Advances in Recording Technology and Materials: Particulate media; Thin magnetic films;
  • Patterning media; Flexible media substrates, Rigid disk substrates;
  • Properties: Magnetic hysteresis loop, Coercivity, Remnant Flux, Slope at Coercivity, Switching Field Distribution, Effects of Time, Temperature; Storage stability; Measurement of spin polarization.
  • Recording of a single transition, Narrow-track recording, Shortgap recording
  • Perpendicular recording, Ultrahigh density recording, Future projection on recording; futuristic devices based on magnetoelectronics.