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Neel, Louis

Hannes Alfven, Louis Neel 1915 William Bragg, Lawrence Bragg... [Pg.122]

Neel temperature The temperature above which an antiferromagnetic substance becomes paramagnetic (seemagnetism). The susceptibility increases with temperature, reaching a maximum at the Neel temperature, after which it abruptly declines. The phenomenon was discovered around 1930 by the French physicist Louis Neel (1904-2000). [Pg.551]

The rotation of a system of magnetic nanoparticles suspended in a liquid carrier is mainly governed by two relaxation mechanisms. The first involves a change in the orientation of all the spins in the particles and hence the magnetisation direction, but not necessarily a physical rotation of every particle it is known as Neel relaxation. There is a characteristic time for the fluctuations of the magnetisation in a nanoparticle to occur, the relaxation time Xff, and its temperature dependence was proposed by Louis Neel ... [Pg.65]

See other pages where Neel, Louis is mentioned: [Pg.142]    [Pg.283]    [Pg.584]    [Pg.7]    [Pg.12]    [Pg.21]    [Pg.106]    [Pg.94]    [Pg.192]    [Pg.422]    [Pg.194]    [Pg.2]    [Pg.147]    [Pg.325]    [Pg.519]    [Pg.253]    [Pg.329]    [Pg.2440]    [Pg.245]    [Pg.217]    [Pg.2439]    [Pg.27]    [Pg.4]    [Pg.42]    [Pg.51]    [Pg.559]    [Pg.198]    [Pg.233]    [Pg.145]    [Pg.196]    [Pg.349]    [Pg.2892]   
See also in sourсe #XX -- [ Pg.27 , Pg.598 ]

See also in sourсe #XX -- [ Pg.27 , Pg.598 ]



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