References of "Iñiguez, Jorge 50035634"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailArchetypal Soft-Mode-Driven Antipolar Transition in Francisite Cu3Bi(SeO3)(2)O2Cl
Milesi-Brault, Cosme; Toulouse, Constance UL; Constable, Evan et al

in PHYSICAL REVIEW LETTERS (2020), 124(9), 097603-6

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 the structural phase ... [more ▼]

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 the structural phase transition in francisite Cu3Bi(SeO3)(2)O2Cl at 115 K and show that it provides a rare archetype of a transition driven by a soft antipolar phonon mode. In the high-symmetry phase at high temperatures, the soft mode is found at (0,0,0.5) at the Brillouin zone boundary and is measured by inelastic x-ray scattering and thermal diffuse scattering. In the low-symmetry phase, this soft-mode is folded back onto the center of the Brillouin zone as a result of the doubling of the unit cell, and appears as a fully symmetric mode that can be tracked by Raman spectroscopy. On both sides of the transition, the mode energy squared follows a linear behavior over a large temperature range. First-principles calculations reveal that, surprisingly, the flat phonon band calculated for the high-symmetry phase seems incompatible with the displacive character found experimentally. We discuss this unusual behavior in the context of an ideal Kittel model of an antiferroelectric transition. [less ▲]

Detailed reference viewed: 17 (3 UL)
Full Text
Peer Reviewed
See detailVibrational properties of LaNiO3 films in the ultrathin regime
Schober, Alexander; Fowlie, Jennifer; Guennou, Mael UL et al

in APL Materials (2020)

Detailed reference viewed: 21 (0 UL)
Full Text
Peer Reviewed
See detailUltralow Voltage Manipulation of Ferromagnetism
Prasad, Bhagwati; Huang, Yen-Lin; Chopdekar, Rajesh V. et al

in Advanced Science (2020)

Detailed reference viewed: 11 (0 UL)
Full Text
Peer Reviewed
See detailProbing Antiferroelectric-Ferroelectric Phase Transitions in PbZrO3 Capacitors by Piezoresponse Force Microscopy
Haidong Lu; Sebastjan Glinsek; Pratyush Buragohain et al

in Advanced Functional Materials (2020)

Detailed reference viewed: 10 (0 UL)
Full Text
Peer Reviewed
See detailA three-order-parameter bistable magnetoelectric multiferroic metal
Urru, Andrea; Ricci, Francesco; Filippetti, Alessio et al

in Nature Communications (2020)

Detailed reference viewed: 12 (0 UL)
Full Text
Peer Reviewed
See detailManipulating magnetoelectric energy landscape in multiferroics
Huang, Yen-Lin; Nikonov, Dmitri; Addiego, Christopher et al

in Nature Communications (2020)

Detailed reference viewed: 12 (0 UL)
Full Text
Peer Reviewed
See detailEffect of Dopant Ordering on the Stability of Ferroelectric Hafnia
Sangita Dutta; Hugo Aramberri; Tony Schenk et al

in Physica Status Solidi. Rapid Research Letters (2020)

Detailed reference viewed: 12 (0 UL)
Full Text
Peer Reviewed
See detailStructural and Raman study of the thermoelectric solid solution Sr1.9La0.1Nb2O7
Ojeda-Galván, Hiram Joazet; Rodríguez-Aranda, Ma. del Carmen; Rodríguez, Angel Gabriel et al

in Journal of Raman Spectroscopy (2020)

Detailed reference viewed: 22 (0 UL)
Full Text
Peer Reviewed
See detailArchetypal Soft-Mode-Driven Antipolar Transition in Francisite Cu3BiðSeO3Þ2O2Cl
Milesi-Brault, Cosme; Toulouse, Constance UL; Constable, Evan et al

in Physical Review Letters (2020)

Detailed reference viewed: 10 (0 UL)
Full Text
Peer Reviewed
See detailLocal negative permittivity and topological phase transition in polar skyrmions
S.Das; Z.Hong; V. A. Stoica et al

in Nature Materials (2020)

Detailed reference viewed: 31 (0 UL)
Full Text
Peer Reviewed
See detailAntiferroelectricity in a family of pyroxene-like oxides with rich polymorphism
Aramberri, Hugo; Iñiguez, Jorge UL

in Communications Materials (2020)

Detailed reference viewed: 23 (0 UL)
Full Text
Peer Reviewed
See detailVibrational properties of LaNiO3 films in the ultrathin regime
Schober, Alexander; Fowlie, Jennifer; Guennou, Mael UL et al

in APL MATERIALS (2020), 8(6),

Collective rotations and tilts of oxygen polyhedra play a crucial role in the physical properties of complex oxides such as magnetism and conductivity. Such rotations can be tuned by preparing thin films ... [more ▼]

Collective rotations and tilts of oxygen polyhedra play a crucial role in the physical properties of complex oxides such as magnetism and conductivity. Such rotations can be tuned by preparing thin films in which dimensionality, strain, and interface effects come into play. However, little is known of the tilt and rotational distortions in films a few unit cells thick including the question of if coherent tilt patterns survive at all in this ultrathin limit. Here, a series of films of perovskite LaNiO3 is studied and it is shown that the phonon mode related to oxygen octahedral tilts can be followed by Raman spectroscopy down to a film thickness of three pseudocubic perovskite unit cells (similar to 1.2 nm). To push the limits of resolution to the ultrathin regime, a statistical analysis method is introduced to separate the Raman signals of the film and substrate. Most interestingly, these analyses reveal a pronounced hardening of the tilt vibrational mode in the thinnest films. A comparison between the experimental results, first principles simulations of the atomic structure, and the standing wave model, which accounts for size effects on the phononic properties, reveals that in the ultrathin regime, the Raman spectra are a hybrid entity of both the bulk and surface phononic behavior. These results showcase Raman spectroscopy as a powerful tool to probe the behavior of perovskite films down to the ultrathin limit. [less ▲]

Detailed reference viewed: 24 (2 UL)
Full Text
Peer Reviewed
See detailViewpoint: Atomic-Scale Design Protocols toward Energy, Electronic, Catalysis, and Sensing Applications
Belviso, Florian; Claerbout, Victor E. P.; Comas-Vives, Aleix et al

in INORGANIC CHEMISTRY (2019), 58(22), 14939-14980

Detailed reference viewed: 32 (3 UL)
Full Text
Peer Reviewed
See detailAnisotropy-driven thermal conductivity switching and thermal hysteresis in a ferroelectric
Antonio Seijas-Bellido, Juan; Iñiguez, Jorge UL; Rurali, Riccardo

in APPLIED PHYSICS LETTERS (2019), 115(19),

Detailed reference viewed: 28 (1 UL)
Full Text
Peer Reviewed
See detailGiant Electrophononic Response in PbTiO3 by Strain Engineering
Torres, Pol; Iñiguez, Jorge UL; Rurali, Riccardo

in PHYSICAL REVIEW LETTERS (2019), 123(18),

Detailed reference viewed: 29 (1 UL)
Full Text
Peer Reviewed
See detailCreating multiferroic and conductive domain walls in common ferroelastic compounds
Zhao, Hong Jian; Iñiguez, Jorge UL

in NPJ COMPUTATIONAL MATERIALS (2019), 5

Detailed reference viewed: 21 (1 UL)
Full Text
Peer Reviewed
See detailHigh-pressure structural change in the ferroelectric layered perovskite Sr2Nb2O7
Alanis, Javier; Joazet Ojeda-Galvan, Hiram; Rodriguez-Aranda, M. C. et al

in PHYSICAL REVIEW B (2019), 100(5),

Detailed reference viewed: 105 (1 UL)
Full Text
Peer Reviewed
See detailElectric-Field Control of Magnetization, Jahn-Teller Distortion, and Orbital Ordering in Ferroelectric Ferromagnets
Chen, Lan; Xu, Changsong; Tian, Haoye UL et al

in PHYSICAL REVIEW LETTERS (2019), 122(24),

Detailed reference viewed: 56 (12 UL)
Full Text
Peer Reviewed
See detailStrain engineering of ZnO thermal conductivity
Antonio Seijas-Bellido, Juan; Rurali, Riccardo; Iñiguez, Jorge UL et al

in PHYSICAL REVIEW MATERIALS (2019), 3(6),

Detailed reference viewed: 61 (1 UL)
Full Text
Peer Reviewed
See detailFirst-principles screening of ABO(3) oxides with two magnetic sublattices
Zhao, Hong Jian; Bellaiche, Laurent; Iñiguez, Jorge UL

in PHYSICAL REVIEW MATERIALS (2019), 3(6),

Detailed reference viewed: 62 (1 UL)