Classes of magnetic materials: antiferromagnetism, Physics

Anti ferromagnetic materials such as chromium have a small but positive susceptibility. They cannot possess any magnetization is the absence of an applied field, in contrast to ferromagnetism. Ant ferromagnetic materials possess a magnetic ordering. In that ordering, the magnetic moments of alternating atoms in the crystals align in opposite directions as depicted in this.

The opposite alignments of atomic magnetic moments are due to quantum mechanical exchanges forces. The net result is that in the absence of an applied field. Ant ferromagnetism occurs, below a critical temperature called the Neel temperature. Above these materials becomes paramagnetic.

Posted Date: 7/7/2012 7:57:20 AM | Location : United States

Related Discussions:- Classes of magnetic materials: antiferromagnetism, Assignment Help, Ask Question on Classes of magnetic materials: antiferromagnetism, Get Answer, Expert's Help, Classes of magnetic materials: antiferromagnetism Discussions

Write discussion on Classes of magnetic materials: antiferromagnetism
Your posts are moderated
Related Questions
BALLISTIC FLIGHT:  "A flight in which a projectile is given a starting push and is permitted to move freely due to inertia and under the action of gravity is known as ballistic

Explain the Adding Waves? When two waves come from the same light source, the light waves are coherent, meaning that the phase difference between the waves is constant in time.

Q. What are the wave fronts? Answer:- (Physics) A wave front is an fantasy surface joining all points in space that are reached at the same instant by a wave propagating th

Explain the Electric Forces and Fields This can be thought of in terms of an electric field, E, similar to the gravitational field discussed earlier [Fg = m g( r ) where at the

Q. A capacitor of capacitance 2 μF is in an ac circuit of 1000 Hz. Compute the reactance of it. Solution: Capacitive reactance XC        = 1 / ω C = 1 / 2π ν C =

The number of electrons in an atom of an element is equal to its: (1) Atomic weight (2) Atomic number (3) Equivalent weight (4)  Electron affinity Ans: Atomic weigh

Obtain Relativistic expression for the kinetic energy of the particle. Derive mass energy relation. Show that total energy E and momentum P are related, where m is rest mass and

The ideal gas approximation: The given assumptions are suppose while defining an ideal gas: (i) The number of molecules in the gas is very huge. (ii) The volume V having the

with the help of diagram explain the working of newton''s ring