- Advances in Quantum Transport in Low Dimensional Systems.
- Low-dimensional spin systems and quantum magnetism.
- (PDF) Low-dimensional quantum spin systems.
- LOW DIMENSIONAL QUANTUM SYSTEMS.
- Quantum magnetism in low dimensional spin systems.
- Magnetic light scattering in low-dimensional quantum spin systems.
- Magnetic light scattering in low-dimensional quantum.
- How many kinds of magnetic interactions are in a low dimensional.
- Identification and investigation of new low-dimensional.
- [PDF] Orbital order in the low-dimensional quantum spin system TiOCl.
- Low-dimensional quantum spin systems - Wakelet.
- Introduction to low-dimensional systems | Semiconductor Physics Group.
- Low-dimensional quantum spin systems in pulsed.
Advances in Quantum Transport in Low Dimensional Systems.
Introduction. Low-dimensional magnets have long been a playground for discovering unconventional physics. 1-3 From an experimental point of view, ideal systems have strong magnetic coupling in one- or two-dimensional units, which are well isolated from each other. This includes magnetic chains, which are hosts to spinon quasi-particles that fractionalise electrons by carrying their spin but.
Low-dimensional spin systems and quantum magnetism.
The exact solution of ferromagnetic two-dimensional (2D) Ising model with a transverse field, which can be used to describe the critical phenomena in low-dimensional quantum spin systems, is derived by equivalence between the ferromagnetic 2D Ising model with a transverse field and the ferromagnetic three-dimensional (3D) Ising model. Low-dimensional quantum spin systems are interacting many body systems for which several rigorous results are known. Powerful techniques like the Bethe Ansatz provide exact knowledge of the ground state energy and low-lying excitation spectrum. A large number of compounds exist which can effectively be described as low-dimensional spin systems.
(PDF) Low-dimensional quantum spin systems.
This thesis develops new techniques for simulating the low-energy behaviour of quantum spin systems in one and two dimensions. Combining these developments, it subsequently uses the formalism of. A central concept in describing these low-dimensional quantum spin systems is that of a spin liquid. This ground state is dominated by strong quantum uctuations, pronounced spin–spin cor-relations and a suppression of long-range magnetic order. The Heisenberg chain with isotropic..
LOW DIMENSIONAL QUANTUM SYSTEMS.
An attractive feature of some low-dimensional magnets is a spin-liquid state defying a long-range order. The liquid may be either gapped or gapless, dependent on the type of quantum statistics. Interactions, the diffusion constant relative to the spin or charge degrees of freedom diverges, signaling the presence of super diffusive transport. Benoit Estienne « Area law in the integer quantum Hall effect » Ideas coming from quantum information theory have provided invaluable insights and powerful tools for quantum many-body systems. Mar 10, 2021 · In recent times, ab initio density functional theory has emerged as a powerful tool for making the connection between models and materials. Insulating transition metal oxides with a small spin forms a fascinating class of strongly correlated systems that exhibit spin-gap states, spin-charge separation, quantum criticality, superconductivity, etc.
Quantum magnetism in low dimensional spin systems.
Whilst bulk metallic and semiconducting systems have been to date major material stages to realize the aforementioned concepts, low-dimensional materials systems such as atomically-flat two-dimensional materials [1-3], two-dimensional electron gases formed at an interface of a heterostructure [4,5], topologically-protected dirac surface states in. Oct 21, 2011 · The compounds, CuCrO4 (3d9) and TiPO4 (3d1), are shown to have completely different ground states despite both being largely isostructural and S = 1/2 quantum spin systems. In this work and the resulting publications it is shown that CuCrO4 is a one-dimensional S = 1/2 spin chain with anti-ferromagnetic nearest- and next nearest-neighbour spin.
Magnetic light scattering in low-dimensional quantum spin systems.
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Magnetic light scattering in low-dimensional quantum.
. Such solvable model systems can be realized by low-dimensional quantum magnets when the exchange interactions J between localized spins are effectively restricted to one or two dimensions. A particularly important model is the spin-1/2 XXZ chain H = ∑ i [J(SxiSxi + 1 + SyiSyi + 1 + ΔSziSzi + 1) + gμBμ0→H→Si] (1).
How many kinds of magnetic interactions are in a low dimensional.
PHYSICS OF QUANTUM MATERIALS 1 Quantum magnetism in low dimensional spin systems Helge ##Rosner#, Manuel Brando , Dijana Milosavljević, Jörg Sichelschmidt, Michael Baenitz Low-dimensional quantum magnets provide a unique possibility to study ground and excited states of a large variety of quantum models with very high accuracy [1].
Identification and investigation of new low-dimensional.
Low Dimensional Magnetism Project details In quantum spin systems the classical ferro- or antiferro-magnetic ground states are suppressed by strong quantum fluctuations, which become increasingly relevant towards zero temperature. The study of such systems is at the forefront of condensed matter physics. Low-dimensional quantum spin systems. Physica E: Low-dimensional systems and nanostructures contains papers and invited review articles on the fundamental and applied aspects of physics in. No items have been added yet! 82 items. 13 items. 158 items..
[PDF] Orbital order in the low-dimensional quantum spin system TiOCl.
At lower temperatures there is potential for quantum communication through 1D spin... van der Vliet, H., Theisen, T. et al. Cooling low-dimensional electron systems into the microkelvin..
Low-dimensional quantum spin systems - Wakelet.
Oct 17, 2018 · Abstract: We study low-dimensional quantum systems with analytical and computational methods. Firstly, the one-dimensional extended - model of fermions with interactions of a finite range is investigated. The model exhibits a phase transition between liquid and insulating regimes. We use various analytical approaches to generalise previous.
Introduction to low-dimensional systems | Semiconductor Physics Group.
ESR line shape in strongly interacting spin systems Temperature-dependence of the shift and width in low-dimensional quantum spin systems Y. Ajiro, et al: JPSJ 63 (1994) 859. Spin trimer: 3CuCl2 ・2Dioxane FFAF.
Low-dimensional quantum spin systems in pulsed.
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