The research teams observation provides new insights into the fundamental theories underlying exotic materials including superconductors, charge-density wave systems, ultracold bosonic systems and antiferromagnets
Using the NIST-developed magneto-optical indicator film technique, NIST researchers have observed directly for the first time the antiferromagnet
domain walls and the evolution of a special type of hybrid domain wall in exchange-coupled FM/AF bilayers.
In this case, the organic metal becomes an antiferromagnet
, in which the spins of neighboring ions line up parallel to each other but in opposite directions.
7], where the Er moments exhibit two dimensional behavior (78-79), and it turns out to be an ideal two-dimensional S = 1/2 Ising antiferromagnet
In this particular case, the spins of neighboring ions line up parallel to each other but in opposite directions to create what is known as an antiferromagnet
However, when the spacer layer is an antiferromagnet
, such as manganese (Mn), the observed coupling is non-collinear.
We focus on itinerant ferromagnetic quantum critical systems and geometrically frustrated novel triangular corner sharing kagome antiferromagnet
and edge sharing Mott insulators, which display exotic properties stemming from quantum fluctuations and are robust to perturbations.
have no macroscopic magnetism due to an internal spin texture with dipole moments a characteristic that is extremely advantageous for a robust storage of data.
This is in contrast to conventional magnetism, found in materials called ferromagnets -- where all of the magnetic forces align in the same direction, reinforcing each other -- or antiferromagnets
, where adjacent magnetic elements align in opposite directions, leading to complete cancellation of the material's overall magnetic field.
Offering a review of theoretical, numerical, and experimental developments in the field of frustrated spin systems, the second edition of this work for postgraduate students and researchers adds findings since 2005, with new material on the renormalization group, the phase transition in stacked triangular antiferromagnets
, and recent breakthroughs in one-dimensional quantum magnets.