output
19952026
most citedThe virtual crystal approximation revisited: Application to dielectric and piezoelectric properties of perovskites

912 citations

Showing 2006Show all

12 papers · 1 filter

cond-mat.mtrl-sci2006★ 87 cited

Vortex-to-Polarization Phase Transformation Path in Pb(ZrTi)O Nanoparticles

Ivan Naumov, Huaxiang Fu

Phase transformation in finite-size ferroelectrics is of fundamental relevance for understanding collective behaviors and balance of competing interactions in low-dimensional syste…

astro-ph2006★ 71 cited

A Revised LCDM Mass Model For The Andromeda Galaxy

Marc S. Seigar, Aaron J. Barth, James S. Bullock

We present an updated mass model for M31 that makes use of a Spitzer 3.6 m image, a mass-to-light ratio gradient based on the galaxy's B-R colour profile, and observed rotation…

quant-ph2006★ 38 cited

Preparation and Determination of Spin-Polarized States in Multi-Zeeman-sublevel Atoms

Bo Wang, Yanxu Han, Jintao Xiao +5

We demonstrate a simple technique to prepare and determine the desired internal quantum states in multi-Zeeman-sublevel atoms. By choosing appropriate coupling and pumping laser be…

quant-ph2006★ 14 cited

Minimum-energy pulses for quantum logic cannot be shared

Julio Gea-Banacloche, Masanao Ozawa

We show that if an electromagnetic energy pulse with average photon number <n> is used to carry out the same quantum logical operation on a set of N atoms, either simultaneously or…

cond-mat.mtrl-sci2006★ 43 cited

Domain evolution of BaTiO3 ultrathin films under electric field: a first-principles study

Bo-Kuai Lai, Inna Ponomareva, Igor A. Kornev +2

A first-principles-derived method is used to study the morphology and electric-field-induced evolution of stripe nanodomains in (001) BaTiO3 (BTO) ultrathin films, and to compare t…

cond-mat.mtrl-sci2006★ 27 cited

Effects of Vacancies on Properties of Relaxor Ferroelectrics: a First-Principles Study

L. Bellaiche, Jorge Iniguez, Eric Cockayne +1

A first-principles-based model is developed to investigate the influence of lead vacancies on the properties of relaxor ferroelectric Pb(Sc1/2Nb1/2)O3 (PSN). Lead vacancies generat…

cond-mat.mtrl-sci2006★ 215 cited

Phase diagram of Pb(Zr,Ti)O3 solid solutions from first principles

Igor A. Kornev, L. Bellaiche, P. -E. Janolin +2

A first-principles-derived scheme, that incorporates ferroelectric and antiferrodistortive degrees of freedom, is developed to study finite-temperature properties of PbZr1-xTixO3 s…

cond-mat.mtrl-sci2006★ 38 cited

Properties of ferroelectric nanodots embedded in a polarizable medium: Atomistic simulations

S. Prosandeev, L. Bellaiche

An atomistic approach is used to investigate finite-temperature properties of ferroelectric nanodots that are embedded in a polarizable medium. Different phases are predicted, depe…

quant-ph2006★ 60 cited

Controlled polarization rotation of an optical field in multi-Zeeman-sublevel atoms

Shujing Li, Bo Wang, Xudong Yang +4

We investigate, both theoretically and experimentally, the phenomenon of polarization rotation of a weak, linearly-polarized optical (probe) field in an atomic system with multiple…

quant-ph2006★ 38 cited

Multi-dark-state resonances in cold multi-Zeeman-sublevel atoms

Bo Wang, Yanxu Han, Jintao Xiao +4

We present our experimental and theoretical studies of multi-dark-state resonances (MDSRs) generated in a unique cold rubidium atomic system with only one coupling laser beam. Such…

math.GT2006

Invariant Heegaard Surfaces in Manifolds with Involutions and the Heegaard Genus of Double Covers

Yo'av Rieck, J Hyam Rubinstein

Let M be a 3-manifold admitting a strongly irreducible Heegaard surface S and f:M \to M an involution. We construct an invariant Heegaard surface for M of genus at most 8 g(S) - 7.…

math.NT2006

k-hypermonogenic automorphic forms

Denis Constales, Rolf Soeren Krausshar, John Ryan

In this paper we deal with monogenic and -hypermonogenic automorphic forms on arithmetic subgroups of the Ahlfors-Vahlen group. Monogenic automorphic forms are exactly the 0-hyp…