User profiles for J. P. Velev

Julian Velev

University of Puerto Rico
Verified email at upr.edu
Cited by 5165

Multi-ferroic and magnetoelectric materials and interfaces

JP Velev, SS Jaswal… - … Transactions of the …, 2011 - royalsocietypublishing.org
The existence of multiple ferroic orders in the same material and the coupling between them
have been known for decades. However, these phenomena have mostly remained the …

Interface effects in spin-polarized metal/insulator layered structures

JP Velev, PA Dowben, EY Tsymbal, SJ Jenkins… - Surface Science …, 2008 - Elsevier
Recent advances in thin-film deposition techniques, such as molecular beam epitaxy and
pulsed laser deposition, have allowed for the manufacture of heterostructures with nearly …

[HTML][HTML] Predictive modelling of ferroelectric tunnel junctions

JP Velev, JD Burton, MY Zhuravlev… - npj Computational …, 2016 - nature.com
Ferroelectric tunnel junctions combine the phenomena of quantum-mechanical tunnelling
and switchable spontaneous polarisation of a nanometre-thick ferroelectric film into novel …

Surface magnetoelectric effect in ferromagnetic metal films

CG Duan, JP Velev, RF Sabirianov, Z Zhu, J Chu… - Physical review …, 2008 - APS
A surface magnetoelectric effect is revealed by density-functional calculations that are applied
to ferromagnetic Fe (001), Ni (001), and Co (0001) films in the presence of an external …

Magnetic tunnel junctions with ferroelectric barriers: prediction of four resistance states from first principles

JP Velev, CG Duan, JD Burton, A Smogunov… - Nano …, 2009 - ACS Publications
Magnetic tunnel junctions (MTJs), composed of two ferromagnetic electrodes separated by
a thin insulating barrier layer, are currently used in spintronic devices, such as magnetic …

Effect of Ferroelectricity on Electron Transport in Tunnel Junctions

JP Velev, CG Duan, KD Belashchenko, SS Jaswal… - Physical Review Letters, 2007 - APS
Based on first-principles calculations, we demonstrate the impact of the electric polarization
on electron transport in ferroelectric tunnel junctions (FTJs). Using a Pt/BaTiO 3/Pt FTJ as a …

[HTML][HTML] A pipeline for identification of bird and frog species in tropical soundscape recordings using a convolutional neural network

J LeBien, M Zhong, M Campos-Cerqueira, JP Velev… - Ecological …, 2020 - Elsevier
Automated acoustic recorders can collect long-term soundscape data containing species-specific
signals in remote environments. Ecologists have increasingly used them for studying …

Magnetoelectric effect at the (001) interface: A first-principles study

MK Niranjan, JP Velev, CG Duan, SS Jaswal… - Physical Review B, 2008 - APS
Multiferroic heterostructures comprising ferroelectric and ferro (ferri) magnetic constituents
have recently attracted considerable interest due to the strong coupling between magnetic …

Tailoring magnetic anisotropy at the ferromagnetic/ferroelectric interface

CG Duan, JP Velev, RF Sabirianov, WN Mei… - Applied Physics …, 2008 - pubs.aip.org
It is predicted that magnetic anisotropy of a thin magnetic film may be affected by the
polarization of a ferroelectric material. Using a Fe/BaTiO3 bilayer as a representative model and …

Magnetoelectric effect at the SrRuO3/BaTiO3 (001) interface: An ab initio study

MK Niranjan, JD Burton, JP Velev, SS Jaswal… - Applied Physics …, 2009 - pubs.aip.org
Ferromagnet/ferroelectric interface materials have emerged as structures with strong
magnetoelectric coupling that may exist due to unconventional physical mechanisms. Here we …