Metal-Insulator Transition of strained SmNiO3 Thin Films: Structural, Electrical and Optical Properties

Torriss, Badr; Margot, J.; Chaker, Mohamed

doi:10.1038/srep40915

Cited by 37 publications

(20 citation statements)

References 41 publications

(46 reference statements)

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“…3A. Pristine SNO has a pseudocubic lattice constant of 3.799 Å, which is quite close to that of the LaAlO 3 (LAO) substrate (3.790 Å) (32). As seen in curve I of Fig.…”

Section: Resultssupporting

confidence: 53%

Strongly correlated perovskite lithium ion shuttles

Sun

Kotiuga

Lim

et al. 2018

Proc. Natl. Acad. Sci. U.S.A.

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Solid-state ion shuttles are of broad interest in electrochemical devices, nonvolatile memory, neuromorphic computing, and biomimicry utilizing synthetic membranes. Traditional design approaches are primarily based on substitutional doping of dissimilar valent cations in a solid lattice, which has inherent limits on dopant concentration and thereby ionic conductivity. Here, we demonstrate perovskite nickelates as Li-ion shuttles with simultaneous suppression of electronic transport via Mott transition. Electrochemically lithiated SmNiO (Li-SNO) contains a large amount of mobile Li located in interstitial sites of the perovskite approaching one dopant ion per unit cell. A significant lattice expansion associated with interstitial doping allows for fast Li conduction with reduced activation energy. We further present a generalization of this approach with results on other rare-earth perovskite nickelates as well as dopants such as Na The results highlight the potential of quantum materials and emergent physics in design of ion conductors.

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“…3A. Pristine SNO has a pseudocubic lattice constant of 3.799 Å, which is quite close to that of the LaAlO 3 (LAO) substrate (3.790 Å) (32). As seen in curve I of Fig.…”

Section: Resultssupporting

confidence: 53%

Strongly correlated perovskite lithium ion shuttles

Sun

Kotiuga

Lim

et al. 2018

Proc. Natl. Acad. Sci. U.S.A.

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“…The relationship between BD and AF order is still under debate. The optical conductivity in the insulating phase of RNiO 3 is characterized by two strong peaks at 0.6 and 1.3 eV (peaks A and B, respectively) [9,13,14] (Fig. 1).…”

mentioning

confidence: 99%

Impact of antiferromagnetism on the optical properties of rare-earth nickelates

et al. 2017

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We study the temperature dependence of the optical conductivity of rare-earth nickelate films of varying composition and strain close to the antiferromagnetic ordering temperature, T N. Two prominent peaks at 0.6 and 1.3 eV, which are characteristic of the insulating phase, display a small but significant increase in intensity when the material passes from para-to antiferromagnetic. This observation indicates the presence of a positive feedback between antiferromagnetic (AF) and bond disproportionation (BD) order. By analyzing the temperature dependence near T N , and using a Landau-type free-energy expression for BD and AF order, we infer that BD order is a necessary condition for the AF phase to appear, and that the antiferromagnetism contributes to stabilization of the bond disproportionation. This model also explains why hysteresis is particularly strong when the transition into the insulating state occurs simultaneously with antiferromagnetic order.

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“…39 The resistivity of the SmNiO 3 thin films at 300 K is reported to be 0.001-0.01 Ω cm. 40,41 The resistivity of the insulating rhombohedral LaCuO 3 thin film is considered to be comparable to that of the SmNiO 3 thin film.…”

Section: Paper Dalton Transactionsmentioning

confidence: 99%

Synthesis of rhombohedral LaCuO₃ thin films using the oxidation effect of NaClO solution

Asanuma

2022

Dalton Trans.

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Metal-Insulator Transition of strained SmNiO3 Thin Films: Structural, Electrical and Optical Properties

Cited by 37 publications

References 41 publications

Strongly correlated perovskite lithium ion shuttles

Strongly correlated perovskite lithium ion shuttles

Impact of antiferromagnetism on the optical properties of rare-earth nickelates

Synthesis of rhombohedral LaCuO₃ thin films using the oxidation effect of NaClO solution

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Metal-Insulator Transition of strained SmNiO3 Thin Films: Structural, Electrical and Optical Properties

Cited by 37 publications

References 41 publications

Strongly correlated perovskite lithium ion shuttles

Strongly correlated perovskite lithium ion shuttles

Impact of antiferromagnetism on the optical properties of rare-earth nickelates

Synthesis of rhombohedral LaCuO3 thin films using the oxidation effect of NaClO solution

Contact Info

Product

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Synthesis of rhombohedral LaCuO₃ thin films using the oxidation effect of NaClO solution