Read e-book online Advanced magnetic and optical materials PDF

By Ashutosh Tiwari, Parameswar K. Iyer, Vijay Kumar, Hendrik Swart

ISBN-10: 111924191X

ISBN-13: 9781119241911

ISBN-10: 1119241952

ISBN-13: 9781119241959

Advanced Magnetic and OpticalMaterials deals distinctive updated chapters at the useful optical and magnetic fabrics, engineering of quantum buildings, high-tech magnets, characterization and new applications.  It brings jointly leading edge methodologies and techniques followed within the learn and improvement of the topic and all of the participants are proven experts within the examine zone. The 14 chapters are geared up in parts:

Part 1: Magnetic Materials

  • Magnetic Heterostructures and superconducting order
  • Magnetic Antiresonance in nanocomposites
  • Magnetic bioactive glass-ceramics for bone therapeutic and hyperthermic therapy of strong tumors
  • Magnetic iron oxide nanoparticles
  • Magnetic nanomaterial-based anticancer therapy
  • Theoretical learn of strained carbon-based nanobelts: Structural, energetical, digital, and magnetic properties
  • Room temperature molecular magnets – Modeling and applications

Part 2: Optical Materials

  • Advances and way forward for white LED phosphors for solid-state lighting
  • Design of luminescent fabrics with “Turn-on/off” reaction for anions and cations
  • Recent developments in luminescent fabrics and their power applications
  • Strongly constrained quantum dots: Emission proscribing, photonic doping, and magneto-optical effects
  • Microstructure characterization of a few quantum dots synthesized by way of mechanical alloying
  • Advances in practical luminescent fabrics and phosphors
  • Development in natural mild emitting fabrics and their strength applications

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1 Diffusive Limit: Usadel Equation In the diffusive limit, we are able to take account of particle scattering by impurities and rough interfaces. In this case the system is described by a set of second-order partial differential equations for the Green’s function of a material collectively termed the Usadel equation. The Usadel equation reads: ˆ+M ˆ − σˇ sf − σˇ so , gˇ = 0. 8) Here we have written the equation in a quite general form, where D denotes the diffusion coefficient of the material, є is the quasiparticle energy and ˆ3 = diag(+1, +1, −1, −1).

Whether 0 or is the ground state depends on the system parameters, such as the length of the interstitial ferromagnetic layer and temperature. 5 for more details). A highly influential application of Josephson junctions is their use in superconducting quantum interference devices (SQUIDs). These are typically made by joining two junctions in a loop [96], but single-junction designs which are less sensitive but more easily manufactured also exist [97, 98]. When a magnetic flux passes through the loop, it induces a circulating current.

105], demonstrating transfer of a supercurrent through an extreme magnetic environment: a half-metal. Half-metals are ferromagnets with so strong magnetic fields that one spin band becomes electrically insulating, while the other band is a metallic conductor. Since conventional singlet Cooper pairs consist of electrons from both spin bands, such pairs cannot exist in a halfmetal. In the presence of magnetic disorder near the interfaces connecting the half-metal to a superconductor, effectively producing a local misalignment of the magnetization there compared to its direction in the bulk, a net Josephson coupling via triplet Cooper pairs can be established [106].

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Advanced magnetic and optical materials by Ashutosh Tiwari, Parameswar K. Iyer, Vijay Kumar, Hendrik Swart

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