Results 41 to 50 of about 319,180 (281)

Vegetable Trade Flows and Chain Competitiveness Linkage Analysis Based on Spatial Panel Econometric Modelling and Porter’s Diamond Model

Agronomy, 2022
The vegetable sector plays an important role in ensuring food security. Vegetable trade flows in Romania have become a major concern due to constant trade balance deficits despite the country’s agricultural potential.
Marius Constantin, Mihail-Dumitru Sacală, Mihai Dinu, Maria Piștalu, Simona Roxana Pătărlăgeanu, Irina-Denisa Munteanu   +5 more
doaj   +1 more source

Dispersion-driven ferromagnetism in a flat-band Hubbard system

, 2014
We investigate a mechanism to establish ground-state ferromagnetism in flat-band Hubbard systems based on a kind of {\it order-from-disorder} effect driven by dispersion.
Derzhko, Oleg, Richter, Johannes
core   +1 more source

Single and double linear and nonlinear flatband chains: spectra and modes

, 2017
We report results of systematic analysis of various modes in the flatband lattice, based on the diamond-chain model with the on-site cubic nonlinearity, and its double version with the linear on-site mixing between the two lattice fields.
Dror, Nir, Hung, Nguyen Viet, Malomed, Boris A., Trippenbach, Marek, Zegadlo, Krzysztof B.   +4 more
core   +1 more source

Zayedene: Carbon sp chains in diamond nanocavities [PDF]

, 2019
We propose a new class of carbon allotropes obtained by combining linear sp carbon chains with sp3 bulk carbon.The structure of these crystalline carbon allotropes consists of sp chains inserted in cylindrical cavities periodically arranged in hexagonal diamond (lonsdaleite).We carry out a detailed computational analysis of the structural, electronic ...
Francesco Delodovici, Daniel S Choi, Mohamed Al Fahim, Larry A Burchfield, Nicola Manini   +4 more
openaire   +1 more source

Entanglement distribution in star network based on spin chain in diamond [PDF]

Physics Letters A, 2018
5 pages, 8 ...
Yuan-Ming Zhu, Lei Ma
openaire   +2 more sources

Asymmetric Diamond Ising-Hubbard Chain with Attraction

Ukrainian Journal of Physics, 2013
6 pages, 4 ...
openaire   +3 more sources

Magnetic and quantum entanglement properties of the distorted diamond chain model for azurite

, 2012
We present the results of magnetic properties and entanglement of the distorted diamond chain model for azurite using pure quantum exchange interactions.
A. Honecker, A. Honecker, B. Gu, B. Gu, C.H. Bennett, C.H. Bennett, C.H. Bennett, D. Loss, G. Japaridze, H. Jeschke, H. Kikuchi, H. Lazaryan, H. Ohta, H.-J. Mikeska, J. Kang, J. Schulenburg, K. Okamoto, K.C. Rule, L. Amico, L. Ananikyan, M. Asoudeh, M. Nalbandyan, N. Ananikian, N. Ananikian, N. Canosa, N.N. Bogoliubov, N.S. Ananikian, O. Derzhko, R. Horodecki, R.D. Spence, S. Hill, S.-S. Gong, T.A. Arakelyan, V.R. Ohanyan, V.V. Hovhannisyan, V.V. Hovhannisyan, W.K. Wootters   +36 more
core   +1 more source

Study of the structural phase transition in diamond (100) & (111) surfaces

Carbon Trends, 2021
Diamond is an insulating material in the bulk form, but exhibits conducting characteristics when its surface is functionalized. Understanding the electronic and physical properties of diamond surfaces is important for their successful implementation in ...
H. Gomez, M.N. Groves, M.R. Neupane
doaj   +1 more source

Nature of the spin dynamics and 1/3 magnetization plateau in azurite

, 2007
We present a specific heat and inelastic neutron scattering study in magnetic fields up into the 1/3 magnetization plateau phase of the diamond chain compound azurite Cu$_3$(CO$_3$)$_2$(OH)$_2$.
A. Brühl, A. U. B. Wolter, B. Wolf, D. A. Tennant, F. Zigan, J. Schreuer, K. C. Rule, M. Lang, S. Köhler, S. Süllow   +9 more
core   +1 more source

Spin frustration in an exactly solvable Ising–Heisenberg diamond chain [PDF]

Journal of Magnetism and Magnetic Materials, 2004
3 pages, 2 figures, to be presented at conference ICM ...
Jascur, Michal, Strecka, Jozef
openaire   +2 more sources