189 citations · 754 across the 24 of their papers we have counts for
24 papers
Liquid-crystal-like dynamic transition in ferroelectric/dielectric superlattices
Fernando Gómez-Ortiz, Mónica Graf, Javier Junquera +2
Nanostructured ferroelectrics display exotic multidomain configurations resulting from the electrostatic and elastic boundary conditions they are subject to. While the ferroelectri…
Influence of ferroelastic domain walls on thermal conductivity
P. Limelette, M. El Kamily, H. Aramberri +6
Enabling on-demand control of heat flow is key for the development of next-generation electronic devices, solid-state heat pumps, and thermal logic. However, precise and agile tuni…
Brownian electric bubble quasiparticles
Hugo Aramberri, Jorge Íñiguez-González
Recent works on electric bubbles (including the experimental demonstration of electric skyrmions) constitute a breakthrough akin to the discovery of magnetic skyrmions some 15 year…
Kittel law and domain formation mechanism in PbTiO/SrTiO superlattices
Fernando Gómez-Ortiz, Hugo Aramberri, Juan M. López +3
We report second-principles simulations on the structural and energetic properties of domains in (PbTiO)/(SrTiO) superlattices. For the explored layer thick…
Theoretical approach to ferroelectricity in hafnia and related materials
Hugo Aramberri, Jorge Íñiguez
Hafnia ferroelectrics combine technological promise and unprecedented behaviors. Their peculiarity stems from the many active extrinsic mechanisms that contribute to their properti…
A 2D ferroelectric vortex lattice in twisted BaTiO3 freestanding layers
Gabriel Sanchez-Santolino, Victor. Rouco, Sergio. Puebla +10
The wealth of complex polar topologies recently found in nanoscale ferroelectrics result from a delicate balance between the materials intrinsic tendency to develop a homogeneous p…
Investigating the Electromechanical Behavior of Unconventionally Ferroelectric -based Capacitors Through Operando Nanobeam X-ray Diffraction
Evgenios Stylianidis, Pranav Surabhi, Ruben Hamming-Green +13
Understanding various aspects of ferroelectricity in hafnia-based nanomaterials is of vital importance for the development of future non-volatile memory and logic devices. Here, th…
High power density energy harvesting devices based on the anomalous Nernst effect of Co/Pt magnetic multilayers
Guillermo Lopez-Polin, Hugo Aramberri, Jorge Marques-Marchan +4
The anomalous Nernst effect (ANE) is a thermomagnetic phenomenon with potential applications in thermal energy harvesting. While many recent works studied the approaches to increas…
Giant voltage amplification from incipient ferroelectric states
Mónica Graf, Hugo Aramberri, Pavlo Zubko +1
Ferroelectrics subject to suitable electric boundary conditions present a steady negative capacitance response. When the ferroelectric is in a heterostructure, this behavior yields…
Ferroelectric/paraelectric superlattices for energy storage
Hugo Aramberri, Natalya S. Fedorova, Jorge Íñiguez
The polarization response of antiferroelectrics to electric fields is such that the materials can store large energy densities, which makes them promising candidates for energy sto…
Piezoelectricity in hafnia
Sangita Dutta, Pratyush Buragohain, Sebastjan Glinsek +7
Because of its compatibility with semiconductor-based technologies, hafnia (HfO) is today's most promising ferroelectric material for applications in electronics. Yet, knowle…
On the possibility that PbZrO not be antiferroelectric
Hugo Aramberri, Claudio Cazorla, Massimiliano Stengel +1
Lead zirconate (PbZrO) is considered the prototypical antiferroelectric material with an antipolar ground state. Yet, several experimental and theoretical works hint at a parti…
Ferroelectricity in epitaxially strained rhombohedral ZrO2 thin films
J. P. B. Silva, R. F. Negrea, M. C. Istrate +7
Zirconia and hafnia based thin films have attracted tremendous attention in the last decade due to their unexpected ferroelectric behavior at the nanoscale, which facilitates the d…
Novel Family of Topological Semimetals with Butterfly-like Nodal Lines
Xiaoting Zhou, Chuang-Han Hsu, Hugo Aramberri +6
In recent years, the exotic properties of topological semimetals (TSMs) have attracted great attention and significant efforts have been made in seeking for new topological phases…
Noncollinear Magnetic Modulation of Weyl Nodes in Ferrimagnetic MnGa
Cheng-Yi Huang, Hugo Aramberri, Hsin Lin +1
The tetragonal ferrimagnetic MnGa exhibits a wide range of intriguing magnetic properties. Here, we report the emergence of topologically nontrivial nodal lines in the absence…
Antiferroelectricity in a family of pyroxene-like oxides with rich polymorphism
Hugo Aramberri, Jorge Íñiguez
Antiferroelectrics have potential applications in energy conversion and storage, but are scarce, particularly among oxides that otherwise display rich ferroic behaviours. Are we ov…
Effect of dopant ordering on the stability of ferroelectric hafnia
Sangita Dutta, Hugo Aramberri, Tony Schenk +1
Films of all-important compound hafnia (HfO2) can be prepared in an orthorhombic ferroelectric (FE) state that is ideal for applications, e.g. in memories or negative-capacitance f…
Archetypal soft-mode driven antipolar transition in francisite Cu3Bi(SeO3)2O2Cl
Cosme Milesi-Brault, Constance Toulouse, Evan Constable +8
Model materials are precious test cases for elementary theories and provide building blocks for the understanding of more complex cases. Here, we describe the lattice dynamics of t…
Termination Dependent Topological Surface States in Nodal Loop Semimetal HfP2
Christopher Sims, M. Mofazzel Hosen, Hugo Aramberri +11
Symmetry plays a major role in all disciplines of physics. Within the field of topological materials there is a great interest in understanding how the mechanics of crystalline and…
Electric control of the heat flux through electrophononic effects
Juan Antonio Seijas-Bellido, Hugo Aramberri, Jorge Íñiguez +1
We demonstrate a fully electric control of the heat flux, which can be continuously modulated by an externally applied electric field in PbTiO, a prototypical ferroelectric per…
Thermal conductivity changes across a structural phase transition: the case of high-pressure silica
Hugo Aramberri, Riccardo Rurali, Jorge Íñiguez
By means of first-principles calculations, we investigate the thermal properties of silica as it evolves, under hydrostatic compression, from a stishovite phase into a CaCl-typ…
Strain Effects in Topological Insulators: Topological Order and the Emergence of Switchable Topological Interface States in SbTe/BiTe Heterojunctions
Hugo Aramberri, M. Carmen Muñoz
Strain can induce a topological phase transition in bismuth dichalcogenides. We present the phase diagram for 3D topological insulators BiTe, SbTe, BiSe and…
Gap and spin texture engineering of Dirac topological states at the Cr-BiSe interface
Hugo Aramberri, M. Carmen Muñoz
The presence of an exchange field in topological insulators reveals novel spin related phenomena derived from the combination of topology and magnetism. In the present work we show…
Proposal for an ac spin current source
Patrick P. Hofer, Hugo Aramberri, Christoph Schenke +1
We propose an ac current source that can be tuned from a pure charge to a pure spin current source. The device consists of two mesoscopic capacitors attached to a two-dimensional s…