A5063853535- Multiferroics and related materials
- Ferroelectric and Piezoelectric Materials
- Magnetic properties of thin films
- Nonlocal and gradient elasticity in micro/nano structures
- Magnetic Properties and Applications
- Magnetic and transport properties of perovskites and related materials
- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- Catalytic Processes in Materials Science
- Advanced Memory and Neural Computing
- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Transition Metal Oxide Nanomaterials
- Acoustic Wave Resonator Technologies
- Advanced Condensed Matter Physics
- Electrochemical Analysis and Applications
- Metal and Thin Film Mechanics
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Shape Memory Alloy Transformations
- Advanced Battery Materials and Technologies
- Electronic and Structural Properties of Oxides
- 2D Materials and Applications
University of Cambridge
2021-2024
Universidad Católica San Antonio de Murcia
2021-2023
Epitaxial cathodes in lithium-ion microbatteries are ideal model systems to understand mass and charge transfer across interfaces, plus interphase degradation processes during cycling. Importantly, if grown at <450 °C, they also offer potential for complementary metal-oxide-semiconductor (CMOS) compatible the Internet of Things, flexible electronics, MedTech devices. Currently, prominent epitaxial high temperatures (>600 °C), which imposes both manufacturing scale-up challenges. Herein, we...
Tuning the properties of magnetic materials by voltage-driven ion migration (magneto-ionics) gives potential for energy-efficient, non-volatile memory and neuromorphic computing. Here, we report large changes in moment at saturation (mS) coercivity (HC), 34% 78%, respectively, an array CoFe2O4 (CFO) epitaxial nanopillar electrodes (∼50 nm diameter, ∼70 pitch, 90 height) with applied voltage −10 V a liquid electrolyte cell. Furthermore, magneto-ionic response faster than 3 s endurance...
Traditionally, the Coulomb repulsion or Peierls instability causes metal-insulator phase transitions in strongly correlated quantum materials. In comparison, magnetic stress is predicted to drive transition materials exhibiting strong spin-lattice coupling. However, this mechanism lacks experimental validation and an in-depth understanding. Here we demonstrate existence of stress-driven archetypal material, chromium nitride. Structural, magnetic, electronic transport characterization,...
Abstract The table-like behavior of the magnetic entropy change is generally observed in rare-earth-based alloys (e.g. La(Fe,Si) 13 , Gd 50 Co 45 Fe 5 56 Ni 15 Al 27 Zr 2 <?CDATA $_{(1-x-y)}$?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msub> <mml:mi /> <mml:mrow> <mml:mo stretchy="false">(</mml:mo> <mml:mn>1</mml:mn> <mml:mo>−</mml:mo> <mml:mi>x</mml:mi> <mml:mi>y</mml:mi> stretchy="false">)</mml:mo> </mml:mrow> </mml:msub> </mml:math> x y etc). Here,...
Understanding strain gradient phenomena is of paramount importance in diverse areas condensed matter physics. This effect responsible for flexoelectricity dielectric materials, and it plays a crucial role the mechanical behavior nanoscale-sized specimens. In magnetoelectric composites, which comprise piezoelectric or ferroelectric (FE) materials coupled to magnetostrictive (MS) phases, can add any uniform that present boost strength coupling. Hence, could be advantageous develop new types...
Abstract Harnessing extra degrees of freedom at the heterostructure interface is crucial importance to bring additional functionalities in modern spintronic devices. Here, a vertical hysteresis loop shift (vertical bias) demonstrated an exchange biased system ferromagnetic thin film La 0.67 Sr 0.33 MnO 3 (10 nm)‐SrRuO (SRO) (20 nm), after field cooling with ±1 T below 100 K close Curie temperature ( C ) ≈125 SRO and sweeping under field. Besides, positive bias (H EB also observed showing...
Piezoresponse force microscopy (PFM) is a robust characterization technique to explore ferroelectric properties at the nanoscale. However, PFM signal can lead misinterpretation of results due dominant electrostatic interaction between tip and sample. In this work, detailed calibration process presented procedure identify parasitic phase offset demonstrated. To obtain artifact-free phase-amplitude loops, methodology developed by combining outcomes from switching spectroscopy-PFM (SS-PFM)...
There is an urgent need for new energy storage solutions that will support the decarbonization of electricity grid. Aqueous organic redox flow batteries are low-cost, long-duration devices in process being commercialized this application; however, their operational lifetime limited by electrolyte decomposition and crossover. These degradation processes generally studied separately, so relationship between two poorly understood. Previously, it had been assumed main contribution to battery...