Veng Cheong Lo
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View article: The influence of magnetic anisotropy on magnetoelectric behavior in conical spin ordered multiferroic state
The influence of magnetic anisotropy on magnetoelectric behavior in conical spin ordered multiferroic state Open
For the magnetism-driven multiferroic materials, the magnetic anisotropy plays an essential role in the magnetoelectric behavior. To understand the influence of magnetic anisotropy on multiferroic state resulting from the conical spin orde…
View article: An <i>ab initio</i> investigation of boron nanotube in ringlike cluster form
An <i>ab initio</i> investigation of boron nanotube in ringlike cluster form Open
Four types of boron nanotubes (BNTs) in the form of double-ring basic units are theoretically predicted. The structure, stability, and electronic properties of these stable BNTs are investigated by the first-principles calculations. The BN…
View article: Magnetic field controlled reversal of ferroelectric polarization in conical spin ordered multiferroics: Monte Carlo simulation
Magnetic field controlled reversal of ferroelectric polarization in conical spin ordered multiferroics: Monte Carlo simulation Open
To understand the fascinating multiferroicity observed in CoCr2O4, Monte Carlo simulation is performed on a three-dimensional spinel lattice with classical Heisenberg spins. The conical spin order is confirmed to be the origin of the pecul…
View article: Monte Carlo simulation on ferroelectric response to magnetic field in an elastic Ising spin chain
Monte Carlo simulation on ferroelectric response to magnetic field in an elastic Ising spin chain Open
The fantastic ferroelectric response to the magnetic field observed in Ca3CoMnO6 compound, where the ferroelectricity is driven by the collinear magnetism, is investigated by using Monte Carlo simulation based on a one-dimensional elastic …
View article: Magnetoelectric coupling induced by exchange striction in frustrated Ising spin chain: Monte Carlo simulation
Magnetoelectric coupling induced by exchange striction in frustrated Ising spin chain: Monte Carlo simulation Open
The fascinating magnetoelectric behavior as observed in Ca3CoMnO6 compound [Choi et al., Phys. Rev. Lett. 100, 047601 (2008)] is investigated by using Monte Carlo simulation based on a one-dimensional elastic Ising model. The macroscopic p…
View article: Impact of in-plane anisotropic strains on the dielectric and pyroelectric properties of Ba0.7Sr0.3TiO3 thin films
Impact of in-plane anisotropic strains on the dielectric and pyroelectric properties of Ba0.7Sr0.3TiO3 thin films Open
A modified Landau-Devonshire phenomenological thermodynamic theory is used to describe the influence of in-plane anisotropic strains on the dielectric and pyroelectric properties of epitaxial Ba0.7Sr0.3TiO3 thin films grown on dissimilar t…
View article: Simulation of oxygen vacancy induced phenomena in ferroelectric thin films
Simulation of oxygen vacancy induced phenomena in ferroelectric thin films Open
The role of oxygen vacancy in lead–titanate–zirconate ferroelectric thin film has been numerically simulated using the two-dimensional four-state Potts model. On one hand, the presence of an oxygen vacancy in a perovskite cell strongly inf…
View article: Simulation of thickness effect in thin ferroelectric films using Landau–Khalatnikov theory
Simulation of thickness effect in thin ferroelectric films using Landau–Khalatnikov theory Open
The thickness effect in ferroelectric thin films has been theoretically investigated using the Landau–Khalatnikov theory. Ferroelectric properties such as the hysteresis loop, and its associated coercive field and the remanent polarization…
View article: Sensors for automatic process control of wire bonding
Sensors for automatic process control of wire bonding Open
PZT sensors were installed on an ultrasonic transducer used for wire bonding in order to record ultrasonic amplitude and bonding time during the bonding process. To find an appropriate location for the sensor placement, the vibration displ…
View article: Modeling the role of oxygen vacancy on ferroelectric properties in thin films
Modeling the role of oxygen vacancy on ferroelectric properties in thin films Open
The presence of oxygen vacancies is considered to be the cause of various phenomena in ferroelectric thin films. In this work, the role of oxygen vacancies is theoretically modeled. Various properties are numerically simulated using the tw…