Superconducting coherence length

Superconducting coherence length

A Superconducting coherence length, usually denoted as xi, can be interpreted in two different ways:

* It gives approximate spatial dimension (size) of the Cooper pair,
* It sets the length scale on which the superconducting order parameter changes considerably.

The superconducting coherence length (xi) is one of two parameters in a Ginzburg-Landau theory of superconductivity.

See also

* phenomenological Ginzburg-Landau theory of superconductivity
* microscopic BCS theory of superconductivity


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • superconductivity — superconduction /sooh peuhr keuhn duk sheuhn/, n. superconductive /sooh peuhr keuhn duk tiv/, superconducting, adj. superconductor /sooh peuhr keuhn duk teuhr/, n. /sooh peuhr kon deuhk tiv i tee/, n. Physics. the phenomenon of almost perfect… …   Universalium

  • Andreev reflection — [ An electron (red) meeting the interface between a normal conductor (N) and a superconductor (S) produces a Cooper pair in the superconductor and a retroreflected hole (green) in the normal conductor. Vertical arrows indicate the spin band… …   Wikipedia

  • Abrikosov vortex — In superconductivity, an Abrikosov vortex is a vortex of supercurrent in a type II superconductor. The supercurrent circulates around the normal (i.e. non superconducting) core of the vortex. The core has a size simxi the superconducting… …   Wikipedia

  • Yttrium barium copper oxide — IUPAC name barium copper yttrium oxide …   Wikipedia

  • Ginzburg–Landau theory — In physics, Ginzburg–Landau theory is a mathematical theory used to model superconductivity. It does not purport to explain the microscopic mechanisms giving rise to superconductivity. Instead, it examines the macroscopic properties of a… …   Wikipedia

  • Magnesium diboride — Identifiers CAS number …   Wikipedia

  • Type-II superconductor — A Type II superconductor is a superconductor characterised by its gradual transition from the superconducting to the normal state within an increasing magnetic field. Typically they superconduct at higher temperatures and magnetic fields than… …   Wikipedia

  • Андреевское отражение — Андреевское отражение  процесс отражения электрона, падающего из нормального металла на границу со сверхпроводником, при котором электрон превращается в дырку. Названо по имени Александра Фёдоровича Андреева, теоретически предсказавшего… …   Википедия

  • Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

  • European x-ray free electron laser — The European x ray free electron laser (XFEL) is a planned European project in strong connection with the DESY research center in Hamburg. [cite web |title=XFEL|url=http://xfel.desy.de/ |format= |accessdate=2007 12 20] . A free electron laser… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”