Superconductivity color magnetic

Abstract Two aspects of quark matter at high density are addressed one is color superconductivity and the other is ferromagnetism. We are mainly concerned with the latter and its relation to color superconductivity, which we call color magnetic superconductivity. The relation of ferromagnetism and chiral symmetry restoration is also discussed. 

If FM is realized in quark matter, it might be in the CSC phase. In this section we discuss a possibility of the coexistence of FM and CSC, which we call Color magnetic superconductivity [13]. 

The mean values (A ) begin to split with each other at a density where U a becomes finite. We d like to make a comment here. One may be surprised to see their value of O(GeV), coming from our parameter choice. However, what we d like to reveal here is not their realistic values but a possibility of color magnetic superconductivity and its qualitative features. More realistic study, of course, is needed by carefully checking our approximations, especially the contact interaction and the sharp cutoff at the Fermi surface. 

Possibility of color magnetic superconductivity Toshitaka Tatsumi, Tomoyuki Maruyama, and Eiji Nakano... 

Sedrakian, D. M., Blaschke, D. (2002). Magnetic field of a neutron star with color superconducting quark matter core. Astrofiz., 45 203-212. 

Metallic appearance in massive form, black to metallic color in powdered state or in electrodeposited form hexagonal crystal system density 20.53 g/cm3 hardness (Brinell) 250 melts at 3,180°C vaporizes at 5,627°C (estimated) vapor pressure 4.6x10- torr at 2,500°C electrical resistivity 19.14 microhm -cm modulus of elasticity 67x10 psi at 20°C specific magnetic susceptibility 0.369x10 thermal neutron absorption cross section 86 barns/atom superconductivity transition temperature 1.7°K insoluble in water and hydrochloric acid soluble in dilute nitric acid and hydrogen peroxide slightly soluble in sulfuric acid. 

As mentioned above, Lio.ieZrNCl becomes superconducting below 13K. On lithium intercalation of iS-HfNCl with lithium naphthahde/THF the color of the crystals changes from white to black, and the interlayer separation increases from 9.23 A to either 14.0 and 18.7 A, corresponding to single or bUayer arrangements of THF molecules. Resistivity data for the 18.7 A phase of Lio.48(THF)3,HfNCl show a sharp drop at 25.5 K and zero resistance at 24.5 K. Superconductivity is confirmed by magnetic susceptibihty measurements, which indicate that the compound is a bulk type II superconductor. The composition Lio.48(THF)3,HfNCl has the highest transition temperature in this class of superconductors. 

F/g./. NRL 83 GHz Millimeter-Wave Beam Material Processing Facility a) gyrotron and superconducting magnet, b) transition and secondary BN window, c) processing chamber, d) access doors, e) exhaust system, f) 3-axis optics manipulator, g) 2 color optical pyrometer... 

A(r) 88.91 density (at 20°C), 4.47 g/cm m.p., 1,522°C named after Ytterby, a Swedish town discovered 1794 alloyed with cobalt to make superconducting alloys and strong permanent magnets. Oxide used in color televisions. 

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