Dr. Ahmed G. Abo-Khalil

Electrical Engineering Department

Type-1.5 supercond

The term type-1.5 superconductor refers to a multicomponentsuperconductor with two coherence lengthsxi_{1,2} related to the magnetic field penetration lengthlambda as follows: xi_1 < sqrt{2} lambda <xi_2. As a consequence, it has behavior different from that of type-I , where sqrt{2} lambda <xi and type-II superconductors, where sqrt{2} lambda >xi . Specifically, in type-1.5 superconductors quantum vortex excitations are thermodynamically stable but have long-range attractive interaction along with short-range repulsive interaction, and it allows the macroscopic phase separation into Meissner state (domains with expelled magnetic field) and clusters of quantum vortices. Animation from numerical calculations of vortex cluster formation are available at "Numerical simulations of vortex clusters formation in type-1.5 superconductors.

Office Hours

Monday 10 -2

Tuesday 10-12

Thursday 11-1

My Timetable

Contacts


email: a.abokhalil@mu.edu.sa

a_galal@yahoo.com

Phone: 2570

Welcome

Welcome To Faculty of Engineering

Almajmaah University

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Photovoltaic Operation


Wave Power

World's Simplest Electric Train



PeltierModule-JouleThief-Fridge

homemade Aircondition

Salt water battery


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