82 citations · 250 across the 8 of their papers we have counts for
8 papers
Switching of controlling mechanisms during the rapid solidification of a melt pool in additive manufacturing
Yijia Gu, Lianyi Chen
Fusion-based metal additive manufacturing (AM) is a disruptive technology that can be employed to fabricate metallic component of near-net-shape with an unprecedented combination o…
Domain and Phase De-strain - Formation of Ferroelastic Domain Structures
Fei Xue, Yongjun Li, Yijia Gu +2
Phase decomposition is a well-known process leading to the formation of two-phase mixtures. Here we show that a strain imposed on a ferroelastic crystal promotes the formation of m…
Non-Ising Character of a Ferroelectric Wall Arises from a Flexoelectric Effect
Yijia Gu, Menglei Li, Anna N. Morozovska +4
Using the classic ferroelectric BaTiO as an example, we show that the 180 degree ferroelectric domain wall, long considered to be of Ising-type and charge neural, contains both…
Novel multiferroics with ferromagnetic phase induced in paraelectric antiferromagnets by electric field application
Maya D. Glinchuk, Eugene A. Eliseev, Yijia Gu +3
The phase diagram of a quantum paraelectric antiferromagnet EuTiO3 under an external electric field was calculated using Landau-Ginzburg-Devonshire theory. It was shown that the ap…
Low-symmetry monoclinic phase stabilized by oxygen octahedra rotations in thin strained EuxSr1-xTiO3 films
Anna N. Morozovska, Yijia Gu, Victoria V. Khist +4
Using Landau-Ginzburg-Devonshire theory and phase field modeling, we explore the complex interplay between the long-range structural order parameter (oxygen octahedron rotations) a…
Universal emergence of spatially-modulated structures induced by flexo-antiferrodistortive coupling in multiferroics
Eugene A. Eliseev, Sergei V. Kalinin, Yijia Gu +6
We proved the existence of a universal flexo-antiferrodistortive coupling as a necessary complement to the well-known flexoelectric coupling. The coupling is universal for all anti…
Conductivity of twin walls - surface junctions in ferroelastics: interplay of deformation potential, octahedral rotations, improper ferroelectricity and flexoelectric coupling
Eugene A. Eliseev, Anna N. Morozovska, Albina Y. Borisevich +4
Electronic and structural phenomena at the twin domain wall-surface junctions in the ferroelastic materials are analyzed. Carriers accumulation caused by the strain-induced band st…
A Phenomenological Thermodynamic Potential for CaTiO3 Single Crystal
Yijia Gu, Karin Rabe, Eric Bousquet +2
The antiferrodistortive (AFD) structural transitions of calcium titanate (CaTiO3) at ambient pressure have been extensively studied during the last few years. It is found none of t…