Accueil du site > À la une > An argentinian-french collaboration : a novel mechanism for fractional magnetization plateaus !
An argentinian-french collaboration : a novel mechanism for fractional magnetization plateaus !
par - 22 mai 2006
A novel (quite general) mechanism for the appearance of magnetization plateaus in quasi-one-dimensional quantum spin systems is proposed where the coupling to the underlying lattice plays an essential role.
A simple model of a frustrated spin-1/2 Heisenberg chain
coupled to adiabatic phonons under an external magnetic field is considered
to prove this scenario.
Using field
theoretic methods complemented by extensive Density Matrix
Renormalisation Group techniques, it is shown that magnetization
plateaus at non-trivial rational values of the magnetization can
be stabilized by the lattice coupling. We suggest that such a
scenario could be relevant for some low dimensional frustrated
spin-Peierls compounds such as Tetrathiafulvalene-
.
The corresponding paper Magnetization Plateaus Induced by a Coupling to the Lattice has been published in Physical Review Letters, 96 117205 (2006).
The corresponding author in the laboratory is Didier Poilblanc.
Dans la même rubrique :
- Exceeding the Pauli limit
- Google matrix of the world trade network
- Symmetry-protected topological phases of cold atoms in one dimension
- Measuring the size of Schrödinger’s cat
- Fractionalization of Itinerant Anyons in One-Dimensional Chains
- How to reproduce bacterial propulsion in a biomimetic way ?
- Local injection of pure spin current generates electric current vortices
- Condensate-free superfluid induced by frustrated proximity effect
- Ultimate quantum limits to sensitivity of nano-oscillator based "artificial noses"
- Preuve expérimentale du couplage spin-orbite Zeeman
- Gapless spin liquid in the frustrated square lattice Heisenberg quantum antiferromagnet
- An Ideal Test Bed for 2D Magnetism
- Spin-Wave Localization for 2D Bosons in a Random Potential
- DNA bubbles and bending : how conformational fluctuations modify its thermal denaturation
- Phase separation and flux quantization in the doped quantum dimer model on the square and triangular lattices
- How disorder can turn into long-range order at high magnetic field ?
- Computing fidelity at magnetic quantum phase transitions
- Topological chiral spin liquid groundstate of a frustrated antiferromagnetic Heisenberg model
- Comment développer l’intelligence collective grâce à l’information sociale
- Comment les poissons interagissent et coordonnent leurs déplacements dans un banc