Protonation-Induced Colossal Lattice Expansion in La2/3Sr1/3MnO3

Fayaz, Muhammad Umer; Wang, Qian; Liang, Shixuan; Han, Lei; Pan, Feng; Song, Cheng

doi:10.1021/acsami.3c14270

Cited by 2 publications

(4 citation statements)

References 56 publications

(95 reference statements)

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“…Our group recently discovered a significant lattice expansion in La 2/3 Sr 1/3 MnO 3 (LSMO) through hydrogenation using IL gating. This expansion, observed under tensile strain conditions, is attributed to enhanced proton diffusion, leading to notable elongation in the Mn–O bond and octahedral tilting, which is supported by density functional theory calculations (Figure a) . We also observed strain dependent uphill and normal hydrogen distribution in perovskite oxide films .…”

Section: Electrolyte Based Ionic Control Of Physical Properties Of Fu...supporting

confidence: 79%

“…The results show that in the low temperature phase separation region, the electroresistance is significantly enhanced and also have dependence on the applied magnetic field . Our research group has found that hydrogenation of LSMO using IL that alters the band structure of the films, enabling the tuning of resistivity and magnetism strength by up to 5 orders of magnitude . Recent work on superlattices with alternating one-unit cell SrIrO 3 and La 0.2 Sr 0.8 MnO 3 films also exhibit a reversible control of resistivity through the electric field induced migration of O 2– and H + ions (Figure d) .…”

Section: Electrolyte Based Ionic Control Of Physical Properties Of Fu...mentioning

confidence: 92%

“…(a) Density functional theory calculated increase in out-of-plan lattice parameter of La 0.67 Sr 0.33 MnO 3 on hydrogenation. Reproduced with permission from ref . Copyright 2023 American Chemical Society.…”

Section: Electrolyte Based Ionic Control Of Physical Properties Of Fu...mentioning

confidence: 99%

See 2 more Smart Citations

Electric Field Induced Ion Migration and Property Tuning in Functional Oxides

Fayaz,

Wang,

Liang

et al. 2024

Acc. Mater. Res.

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Metrics & MoreArticle Recommendations * sı Supporting Information CONSPECTUS: The manipulation of functional oxide materials' properties through energy-efficient means is of great importance in materials science. Electric field-driven ionic control of functional oxides presents a versatile and effective approach for tailoring material properties, including insulator−metal transitions, superconductivity, magnetism, and optical characteristics, through spin, orbit, charge, and lattice degrees of freedom. This approach introduces a dynamic means of tuning these properties, allowing for real-time adjustments through external stimuli such as electric fields. The ability to modify material characteristics through ionic means is promising for both scientific exploration and practical applications, owing to its energy efficiency and compatibility with room temperature operation. Traditionally, this was primarily explored for energy storage applications, but it has now found broad utility in optoelectronics, nanoelectronic memory, and computing. Controlling charge carriers is a pivotal aspect of advancing the electronic functionalities of oxide materials. The substantial accumulation of charge carriers via electric field-induced electric double layers at oxide−electrolyte interfaces prompts extremely large electric fields, leading to different phenomena such as chemical reactions, phase transitions, and magnetic ordering. The mechanisms involved in electric field-controlled ionic motion using ionic liquids and gels range from primarily electrostatic to completely electrochemical. The electrostatic effect involves the induction of electrons or holes, and ionic motion is specific to the electrolyte side of the interface. In contrast, the electrochemical effect involves ionic motion occurring on both sides of the interface and across it. Through the application of electric fields, the insertion or extraction of ions in functional oxide materials enables the control of various phases and properties. In the electrostatic mechanism, carrier density modulation is primarily driven by band bending, whereas the electrochemical mechanism can completely reshape electronic band structures due to exceptionally high carrier densities. The electrolyte nature and target material properties significantly influence both the electrostatic and electrochemical effects. Recent advancements in characterization techniques and theoretical simulations have improved our understanding of the gating mechanisms in various material systems.In this Account, we provide a concise summary of recent advancements in manipulating the properties of various transition metal oxide material systems using electrolyte-based ionic motion through an electric field. We begin by exploring the detailed mechanisms that underlie how electric field gating can bring about substantial changes in the material properties. These changes encompass alterations in crystal and electronic structures as well as modifications in electrical, optical, and magnetic properties. Additionall...

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Section: Electrolyte Based Ionic Control Of Physical Properties Of Fu...supporting

confidence: 79%

Section: Electrolyte Based Ionic Control Of Physical Properties Of Fu...mentioning

confidence: 92%

See 1 more Smart Citation

Electric Field Induced Ion Migration and Property Tuning in Functional Oxides

Fayaz,

Wang,

Liang

et al. 2024

Acc. Mater. Res.

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“…Comparing NNO and LSMO both grown on the LAO substrate (Figure b vs Figure d), it can reasonably be speculated that larger compressive strain facilitates Fick’s diffusion phenomena. We also noticed other investigations on the hydrogenation of the LSMO/STO system with different methods, including Pt-catalyzed spillover reaction and ILG, which exhibit different hydrogen distribution from Figure c. Therefore, it should be clarified that strain is not the only factor determining the hydrogen distribution.…”

Section: Resultsmentioning

confidence: 72%

Strain-Induced Uphill Hydrogen Distribution in Perovskite Oxide Films

Wang,

Gu,

Chen

et al. 2024

ACS Appl. Mater. Interfaces

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Incorporating hydrogen into transition-metal oxides (TMOs) provides a facile and powerful way to manipulate the performances of TMOs, and thus numerous efforts have been invested in developing hydrogenation methods and exploring the property modulation via hydrogen doping. However, the distribution of hydrogen ions, which is a key factor in determining the physicochemical properties on a microscopic scale, has not been clearly illustrated. Here, focusing on prototypical perovskite oxide (NdNiO 3 and La 0.67 Sr 0.33 MnO 3 ) epitaxial films, we find that hydrogen distribution exhibits an anomalous "uphill" feature (against the concentration gradient) under tensile strain, namely, the proton concentration enhances upon getting farther from the hydrogen source. Distinctly, under a compressive strain state, hydrogen shows a normal distribution without uphill features. The epitaxial strain significantly influences the chemical lattice coupling and the energy profile as a function of the hydrogen doping position, thus dominating the hydrogen distribution. Furthermore, the strain−(H + ) distribution relationship is maintained in different hydrogenation methods (metal-alkali treatment) which is first applied to perovskite oxides. The discovery of strain-dependent hydrogen distribution in oxides provides insights into tailoring the magnetoelectric and energy-conversion functionalities of TMOs via strain engineering.

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Protonation-Induced Colossal Lattice Expansion in La_2/3Sr_1/3MnO₃

Cited by 2 publications

References 56 publications

Electric Field Induced Ion Migration and Property Tuning in Functional Oxides

Electric Field Induced Ion Migration and Property Tuning in Functional Oxides

Strain-Induced Uphill Hydrogen Distribution in Perovskite Oxide Films

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