000 03961nam a22004455i 4500
001 978-3-540-44515-9
003 DE-He213
005 20161121231047.0
007 cr nn 008mamaa
008 100301s2007 gw | s |||| 0|eng d
020 _a9783540445159
_9978-3-540-44515-9
024 7 _a10.1007/978-3-540-44515-9
_2doi
050 4 _aQC173.45-173.458
072 7 _aPHF
_2bicssc
072 7 _aSCI077000
_2bisacsh
082 0 4 _a530.41
_223
100 1 _aMatsushita, Teruo.
_eauthor.
245 1 0 _aFlux Pinning in Superconductors
_h[electronic resource] /
_cby Teruo Matsushita.
264 1 _aBerlin, Heidelberg :
_bSpringer Berlin Heidelberg,
_c2007.
300 _aXIV, 503 p.
_bonline resource.
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
347 _atext file
_bPDF
_2rda
505 0 _aIntroduction -- Fundamental Electromagnetic Phenomena in Superconductors -- Various Electromagnetic Phenomena -- Longitudinal Magnetic Field Effect -- Measurement Methods for Critical Current Density -- Flux Pinning Mechanism -- Flux Pinning Characteristics -- High-Temperature Superconductors -- MgB2 -- A1 Description of Equilibrium State -- A2 Magnetic Properties of a Small Superconductor -- A3 Minimization of Energy Dissipation -- A4 Partition of Pinning Energy -- A5 Comments on the Nonlocal Theory on the Elasticity of the Flux Line Lattice -- A6 Avalanching Flux Flow Model -- A7 Josephson Penetration Depth -- A8 Transverse Flux Bundle Size.
520 _aThe book covers the flux pinning mechanisms and properties and the electromagnetic phenomena caused by the flux pinning common for metallic, high-Tc and MgB2 superconductors. The condensation energy interaction known for normal precipitates or grain boundaries and the kinetic energy interaction proposed for artificial Nb pins in Nb-Ti, etc., are introduced for the pinning mechanism. Summation theories to derive the critical current density are discussed in detail. Irreversible magnetization and AC loss caused by the flux pinning are also discussed. The loss originally stems from the ohmic dissipation of normal electrons in the normal core driven by the electric field induced by the flux motion. The readers will learn why the resultant loss is of hysteresis type in spite of such mechanism. The influence of the flux pinning on the vortex phase diagram in high Tc superconductors is discussed, and the dependencies of the irreversibility field are also described on other quantities such as anisotropy of superconductor, specimen size and electric field strength. Recent developments of critical current properties in various high-Tc superconductors and MgB2 are introduced. Other topics are: singularity in the case of transport current in a parallel magnetic field such as deviation from the Josephson relation, reversible flux motion inside pinning potentials which causes deviation from the critical state model prediction, the concept of the minimization of energy dissipation in the flux pinning phenomena which gives the basis for the critical state model, etc. Significant reduction in the AC loss in AC wires with very fine filaments originates from the reversible flux motion which is dominant in the two-dimensional pinning. The concept of minimum energy dissipation explains also the behavior of flux bundle size which determines the irreversibility line under the flux creep.
650 0 _aPhysics.
650 0 _aCondensed matter.
650 0 _aSuperconductivity.
650 0 _aSuperconductors.
650 1 4 _aPhysics.
650 2 4 _aCondensed Matter Physics.
650 2 4 _aStrongly Correlated Systems, Superconductivity.
710 2 _aSpringerLink (Online service)
773 0 _tSpringer eBooks
776 0 8 _iPrinted edition:
_z9783540445142
856 4 0 _uhttp://dx.doi.org/10.1007/978-3-540-44515-9
912 _aZDB-2-PHA
950 _aPhysics and Astronomy (Springer-11651)
999 _c507961
_d507961