Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2000-06-22
Physics
Condensed Matter
Strongly Correlated Electrons
6 figures
Scientific paper
Of great recent interest in condensed matter physics are phenomena of coexistence of quantum and classical properties in the same material. Such duality occurs in certain mixed-spin antiferromagnets composed of quantum spin chains interacting through ``auxiliary'' magnetic ions. In this category are linear-chain rare earth nickelates that exhibit a seemingly paradoxical co-existence of long-range magnetic order and one-dimensional gapped quantum spin excitations at low temperatures. In the present paper we propose a unified physical description of these compounds, supported by recent neutron diffraction and inelastic scattering studies. Our basic concept is the effective separation between low-frequency classical and high-frequency quantum spin correlations. This interpretation enables experimental measurements of some previously inaccessible fundamental properties of quantum spin chains, and predicts new exotic magnetic excitations and mechanisms of long-range ordering in complex quantum magnets.
Akimitsu Jun
Maslov Sergei
Nagler S. E.
Raymond Sean
Yokoo Takeo
No associations
LandOfFree
Quantum and classical dynamics in complex one-dimensional antiferromagnets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quantum and classical dynamics in complex one-dimensional antiferromagnets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum and classical dynamics in complex one-dimensional antiferromagnets will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-95672