178 citations · 635 across the 16 of their papers we have counts for
18 papers
Size Effect of Local Current-Voltage Characteristics of MX Nanoflakes: Local Density of States Reconstruction from Scanning Tunneling Microscopy Experiments
Anna N. Morozovska, Hanna V. Shevliakova, Yaroslava Yu. Lopatina +7
Local current-voltage characteristics for low-dimensional transition metal dichalcogenides (LD-TMD), as well as the reconstruction of their local density of states (LDOS) from scan…
Flexoelectric and piezoelectric coupling in a bended MoS monolayer
Hanna V. Shevliakova, Semen O. Yesylevskyy, Ihor Kupchak +3
Low-dimensional (LD) transition metal dichalcogenides (TMDs) in the form of nanoflakes, which consist of one or several layers, are the subject of intensive fundamental and applied…
Correlation between corrugation-induced flexoelectric polarization and conductivity of low-dimensional transition metal dichalcogenides
Anna N. Morozovska, Eugene A. Eliseev, Hanna V. Shevliakova +5
Tunability of polar and semiconducting properties of low-dimensional transition metal dichalcogenides (TMDs) have propelled them to the forefront of fundamental and applied physica…
Flexo-induced ferroelectricity in low dimensional transition metal dichalcogenides
Anna N. Morozovska, Eugene A. Eliseev, Galina I. Dovbeshko +3
We developed a Landau type theory for the description of polar phenomena in low-dimensional transition metal dichalcogenides (TMDs), specifically exploring flexoelectric origin of…
Electrostatic effect on off-field ferroelectric hysteresis loop in piezoresponse force microscopy
Huimin Qiao, Owoong Kwon, Yunseok Kim
Piezoresponse force microscopy (PFM) has been extensively utilized as a versatile and an indispensable tool to understand and analyze nanoscale ferro- /piezoelectric properties by…
Phase Diagrams of Single Layer Two-Dimensional Transition Metal Dichalcogenides: Landau Theory
Anna N. Morozovska, Eugene A. Eliseev, Kevin D. Stubbs +3
Single layer (SL) two-dimensional transition metal dichalcogenides (TMDs), such as MoS2, ReS2, WSe2, and MoTe2 have now become the focus of intensive fundamental and applied resear…
Room Temperature Ferroelectric Ferromagnet in 1D Tetrahedral Chain Network
Kyeong Tae Kang, Chang Jae Roh, Jinyoung Lim +17
Ferroelectricity occurs in crystals with broken spatial inversion symmetry. In conventional perovskite oxides, concerted ionic displacements within a three-dimensional network of t…
Ferroelectric polarization rotation in order-disorder-type LiNbO3 thin films
Tae Sup Yoo, Sang A Lee, Changjae Roh +16
The direction of ferroelectric polarization is prescribed by the symmetry of the crystal structure. Therefore, rotation of the polarization direction is largely limited, despite th…
Possible Electrochemical Origin of Ferroelectricity in HfO2 Thin Films
Maya D. Glinchuk, Anna N. Morozovska, Yunseok Kim +1
Recent observations of unusual ferroelectricity in thin films of HfO_2 and related materials have attracted broad interest to the materials and led to the emergence of a number of…
Direct Probing of Polarization Charges at the Nanoscale
Owoong Kwon, Daehee Seol, Dongkyu Lee +8
Ferroelectric materials possess spontaneous polarization that can be used for multiple applications. Owing to a long term development for reducing the sizes of devices, the prepara…
Ex-situ atomic force microscopy on the growth mode of SrRuO3 epitaxial thin film
Bora Kim, Sang A Lee, Daehee Seol +2
The functional properties of devices based on perovskite oxides depend strongly on the growth modes that dramatically affect surface morphology and microstructure of the hetero-str…
Non-piezoelectric effects in piezoresponse force microscopy
Daehee Seol, Bora Kim, Yunseok Kim
Piezoresponse force microscopy (PFM) has been used extensively for exploring nanoscale ferro/piezoelectric phenomena over the past two decades. The imaging mechanism of PFM is base…
Flexocoupling impact on the size effects of piezo- response and conductance in mixed-type ferroelectrics-semiconductors under applied pressure
Anna N. Morozovska, Eugene A. Eliseev, Yuri A. Genenko +6
Flexocoupling impact on the size effects of the spontaneous polarization, effective piezo-response, elastic strain and compliance, carrier concentration and piezo-conductance have…
Surface properties of atomically flat poly-crystalline SrTiO3
Sungmin Woo, Hoidong Jeong, Sang A Lee +7
Comparison between single- and the poly-crystalline structures provides essential information on the role of long-range translational symmetry and grain boundaries. In particular,…
Space charge dynamics in solid electrolytes with steric effect and Vegard stresses: resistive switching and ferroelectric-like hysteresis of electromechanical response
Anna N. Morozovska, Eugene A. Eliseev, Olexandr V. Varenik +5
We performed self-consistent modelling of electrotransport and electromechanical response of solid electrolyte thin films allowing for steric effects of mobile charged defects (ion…
Tunneling Electroresistance Induced by Interfacial Phase Transitions in Ultrathin Oxide Heterostructures
Lu Jiang, Woo Seok Choi, Hyoungjeen Jeen +8
The ferroelectric (FE) control of electronic transport is one of the emerging technologies in oxide heterostructures. Many previous studies in FE tunnel junctions (FTJs) exploited…
Ionically-mediated electromechanical hysteresis in transition metal oxides
Yunseok Kim, Anna N. Morozovska, Amit Kumar +5
Electromechanical activity, remanent polarization states, and hysteresis loops in paraelectric TiO2 and SrTiO3 are observed. The coupling between the ionic dynamics and incipient f…
Cross talk by extensive domain wall motion in arrays of ferroelectric nanocapacitors
Yunseok Kim, Hee Han, Ionela Vrejoiu +3
We report on extensive domain wall motion in ferroelectric nanocapacitor arrays investigated by piezoresponse force microscopy. Under a much longer or higher bias voltage pulse, co…