output
19952026
most citedAtomically thin boron nitride: a tunnelling barrier for graphene devices

920 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2002Show all

12 papers · 1 filter

cond-mat.str-el2002★ 47 cited

Charge ordering signatures in the optical properties of beta-Na0.33V2O5

C. Presura, M. Popinciuc, P. H. M. van Loosdrecht +4

Temperature dependent optical spectra are reported for beta-Na0.33V2O5. The sodium ordering transition at T_Na = 240 K, and in particular the charge ordering transition at T_MI = 1…

cond-mat.str-el2002★ 11 cited

Equivalence of the Falicov-Kimball and Brandt-Mielsch forms for the free energy of the infinite-dimensional Falicov-Kimball model

A. M. Shvaika, J. K. Freericks

Falicov and Kimball proposed a real-axis form for the free energy of the Falicov-Kimball model that was modified for the coherent potential approximation by Plischke. Brandt and Mi…

cond-mat2002★ 7 cited

Square-lattice s=1/2 XY model and the Jordan-Wigner fermions: The ground-state and thermodynamic properties

Oleg Derzhko, Taras Verkholyak, Reimar Schmidt +1

Using the 2D Jordan-Wigner transformation we reformulate the square-lattice s=1/2 XY (XZ) model in terms of noninteracting spinless fermions and examine the ground-state and thermo…

nucl-th2002★ 1 cited

Heuristic Models of Two-Fermion Relativistic Systems with Field-Type Interaction

Askold Duviryak

We use the chain of simple heuristic expedients to obtain perturbative and exactly solvable relativistic spectra for a family of two-fermionic bound systems with Coulomb-like inter…

cond-mat2002★ 14 cited

Quantum phase transitions in alternating transverse Ising chains: Rigorous analytical and exact numerical results

Oleg Derzhko, Johannes Richter, Taras Krokhmalskii +1

We examine the ground state properties of the s=1/2 transverse Ising chain with regularly alternating bonds and fields using exact analytical results and exact numerical data for l…

cond-mat.str-el2002★ 5 cited

Correlated hopping in infinite dimensions: Rigorous local approach

A. M. Shvaika

The general approach for the description of correlated hopping in the Dynamical Mean-Field Theory which is based on the expansion over electron hopping around the atomic limit is d…

cond-mat.str-el2002★ 28 cited

Dynamical mean-field theory of correlated hopping: A rigorous local approach

A. M. Shvaika

A general approach for the description of correlated hopping in infinite dimensions, which is based on an expansion over electron hopping around the atomic limit, is developed. Suc…

cond-mat.str-el2002

Thermodynamics of pseudospin-electron model in mean field approximation

I. V. Stasyuk, O. D. Danyliv

The mean field type approach based on the self-consistent consideration of an effective field created by electron transfer is developed for a description of thermodynamics of the H…

cond-mat.stat-mech2002★ 24 cited

Critical, crossover, and correction-to-scaling exponents for isotropic Lifshitz points to order

H. W. Diehl, M. Shpot

A two-loop renormalization group analysis of the critical behaviour at an isotropic Lifshitz point is presented. Using dimensional regularization and minimal subtraction of poles,…

cond-mat2002

A Marginal Dimension of a Weakly Diluted Quenched m-Vector Model

Yu. Holovatch, M. Dudka, T. Yavors'kii

We calculate a marginal order parameter dimension which in a weakly diluted quenched -vector model controls the crossover from a universality class of a ``pure'' model ($m…

nucl-th2002★ 11 cited

Exact two-particle eigenstates in partially reduced QED

Jurij W. Darewych, Askold Duviryak

We consider a reformulation of QED in which covariant Green functions are used to solve for the electromagnetic field in terms of the fermion fields. It is shown that exact few-fer…

cond-mat.str-el2002★ 15 cited

Dynamical susceptibilities in strong coupling approach: General scheme and Falikov-Kimball model

A. M. Shvaika

A general scheme to calculate dynamical susceptibilities of strongly correlated electron systems within the dynamical mean field theory is developed. Approach is based on an expans…