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Articles by Berit Goodge
Superconducting phase diagram of multilayer square-planar nickelates
Editor’s summary Abstract Supplementary Materials References and Notes Information & Authors Metrics & Citations Check Access References Figures Tables Media Share Editor’s summary Superconductivity in the nickelates, layered compounds with notable similarities to the cuprates, can be tuned by chemical doping and by applying pressure. Pan et al. used a different approach: varying the number of NdNiO2 layers (n) sandwiched between NdO2 layers, synthesizing a series of Ndn+1NinO2n+2 compounds.
Structural modifications in strain-engineered bilayer nickelate thin films
Abstract The discovery of high-temperature superconductivity in bulk La3Ni2O7 under high hydrostatic pressure1−4 and biaxial compression in epitaxial thin films5−8 has ignited significant interest in understanding the interplay between atomic and electronic structure in these compounds.
Author Correction: Signatures of ambient pressure superconductivity in thin film La 3 Ni 2 O 7
Correction to: Nature https://doi.org/10.1038/s41586-024-08525-3 Published online 19 December 2024 In the version of this article originally published, the units of the y axes in Figs. 1b, 1c, 2a, 2b, 3b and 3c were incorrectly shown as “mΩ cm−1” due to an error introduced during the production process; the correct unit is “mΩ cm”. The x-axis label of Fig. 3d was incorrectly shown as “Tc”; the correct label is “T”. These errors have been corrected in the HTML and PDF versions of the article.
Transport evidence for chiral surface states from three-dimensional Landau bands - Nature Physics
Abstract Strong magnetic fields applied to metals confine electrons into Landau orbits, except at the boundaries at which frequent surface collisions disrupt their cyclotron motion. In two-dimensional systems, these boundary states form dissipationless chiral edge channels in the quantum Hall regime.
Shining a light on interfacial conductivity - Nature Materials
Ultraviolet illumination dramatically increases electrical conductivity at the interface between two oxide compounds.
Author Correction: Superconductivity and normal-state transport in compressively strained La2PrNi2O7 thin films - Nature Materials
Correction to: Nature Materials https://doi.org/10.1038/s41563-025-02258-y, published online 29 May 2025. In the version of this article originally published, the Hall coefficient of La2PrNi2O7 samples (P75, P78, P108) was reported with the wrong sign in Fig. 4b and Extended Data Fig. 8. This has now been corrected; the La3Ni2O7 data from ref. 9 have been checked again and are unaffected. The original Fig. 4 and Extended Data Fig.
Superconductivity and normal-state transport in compressively strained La2PrNi2O7 thin films - Nature Materials
Abstract The discovery of superconductivity under high pressure in Ruddlesden–Popper phases of bulk nickelates has sparked great interest in stabilizing ambient-pressure superconductivity in the thin-film form using epitaxial strain. Recently, signs of superconductivity have been observed in compressively strained bilayer nickelate thin films with an onset temperature exceeding 40 K, although with broad, two-step-like transitions.
Tailored topotactic chemistry unlocks heterostructures of magnetic intercalation compounds - Nature Communications
Abstract The construction of thin film heterostructures has been a widely successful archetype for fabricating materials with emergent physical properties. This strategy is of particular importance for the design of multilayer magnetic architectures in which direct interfacial spin-spin interactions between magnetic phases in dissimilar layers lead to emergent and controllable magnetic behavior.
Atomic-Scale Tracking of Topological Defect Motion and Incommensurate Charge Order Melting
In strongly correlated materials, interactions between electrons give rise to a wide range of exotic properties. Charge order, a periodic pattern of modulated electron density that competes with other phenomena such as superconductivity, has attracted sustained interest due to these interactions and its intriguing coupling to the atomic lattice. In some cases, the charge order periodicity does not match that of the underlying atomic structure.
Synthesis of superconducting freestanding infinite-layer nickelate heterostructures on the millimetre scale - Nature Synthesis
Abstract The development of superconductivity in infinite-layer nickelates through hole-doping relies on the controlled synthesis of Ni in a high oxidation state, followed by topotactic reduction to a very low oxidation state. So far, superconductivity has been realized only in epitaxial thin films. Here we integrate these techniques with heterostructures that include an epitaxial soluble buffer layer, enabling the release of freestanding (Nd,Sr)NiO2 heterostructures.
Signatures of ambient pressure superconductivity in thin film La3Ni2O7 - Nature
Abstract Recently, the bilayer nickelate La3Ni2O7 has been discovered as a new superconductor with transition temperature Tc near 80 K under high pressure1–3. Despite extensive theoretical and experimental work to understand the nature of its superconductivity4–29, the requirement of extreme pressure restricts the use of many experimental probes and limits its application potential.
Author Correction: Limits to the strain engineering of layered square-planar nickelate thin films - Nature Communications
Correction to: Nature Communications https://doi.org/10.1038/s41467-023-37117-4, published online 16 March 2023 In the Acknowledgements section of this article the grant number relating to NSF was incorrectly given as DMR 2045826 and should have been DMR-2045826. The original article has been corrected.
Layered ferroelectric materials make waves - and vortices
NEWS AND VIEWS 14 February 2024 By combining materials-synthesis techniques, researchers have come up with a way of building layered structures that display intriguing wave-like patterns of electric polarization, and could be useful for next-generation electronics. A household refrigerator magnet has an inherent polarity, a characteristic it shares with other magnets of its kind, known as ferromagnets.
Encoding multistate charge order and chirality in endotaxial heterostructures - Nature Communications
Abstract High-density phase change memory (PCM) storage is proposed for materials with multiple intermediate resistance states, which have been observed in 1T-TaS2 due to charge density wave (CDW) phase transitions. However, the metastability responsible for this behavior makes the presence of multistate switching unpredictable in TaS2 devices.
Publisher Correction: Geometric frustration of Jahn–Teller order in the infinite-layer lattice - Nature
Authors and Affiliations Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, USA Woo Jin Kim, Chunjing Jia, Kyuho Lee, Motoki Osada, Daniel Jost, Brian Moritz, Thomas P. Devereaux & Harold Y. Hwang Department of Applied Physics, Stanford University, Stanford, CA, USA Woo Jin Kim & Harold Y. Hwang Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA Michelle A.
Linear-in-temperature resistivity for optimally superconducting (Nd,Sr)NiO2 - Nature
Lee, P. A., Nagaosa, N. & Wen, X. G. Doping a Mott insulator: physics of high-temperature superconductivity. Rev. Mod. Phys. 78, 17–85 (2006). Article CAS Google Scholar Keimer, B., Kivelson, S. A., Norman, M. R., Uchida, S. & Zaanen, J. From quantum matter to high-temperature superconductivity in copper oxides. Nature 518, 179–186 (2015). Article CAS PubMed Google Scholar Cao, Y. et al. Unconventional superconductivity in magic-angle graphene superlattices. Nature 556, 43–50 (2018).
Consequences and Control of Multiscale Order/Disorder in Chiral Magnetic Textures
Download Hi-Res ImageDownload to MS-PowerPointCite This:ACS Nano 2023, XXXX, XXX RETURN TO ARTICLES ASAPPREVArticleNEXT Berit H. Goodge Department of Chemistry, University of California, Berkeley, California 94720, United States Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany , , Lilia S. Xie Department of Chemistry, University of California, Berkeley, California 94720, United States , and * D.
Resolving the polar interface of infinite-layer nickelate thin films - Nature Materials
Abstract Nickel-based superconductors provide a long-awaited experimental platform to explore possible cuprate-like superconductivity. Despite similar crystal structure and d electron filling, however, superconductivity in nickelates has thus far only been stabilized in thin-film geometry, raising questions about the polar interface between substrate and thin film. Here we conduct a detailed experimental and theoretical study of the prototypical interface between Nd1−xSrxNiO2 and SrTiO3.
Limits to the strain engineering of layered square-planar nickelate thin films - Nature Communications
Abstract The layered square-planar nickelates, Ndn+1NinO2n+2, are an appealing system to tune the electronic properties of square-planar nickelates via dimensionality; indeed, superconductivity was recently observed in Nd6Ni5O12 thin films. Here, we investigate the role of epitaxial strain in the competing requirements for the synthesis of the n = 3 Ruddlesden-Popper compound, Nd4Ni3O10, and subsequent reduction to the square-planar phase, Nd4Ni3O8.
Geometric frustration of Jahn–Teller order in the infinite-layer lattice - Nature
Abstract The Jahn–Teller effect, in which electronic configurations with energetically degenerate orbitals induce lattice distortions to lift this degeneracy, has a key role in many symmetry-lowering crystal deformations1. Lattices of Jahn–Teller ions can induce a cooperative distortion, as exemplified by LaMnO3 (refs. 2,3).
Mixed dimensionality weaves exotic behaviour into superlattices
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Isotropic Pauli-limited superconductivity in the infinite-layer nickelate Nd0.775Sr0.225NiO2
Abstract The recent observation of superconductivity in thin-film infinite-layer nickelates1,2,3 offers a different angle from which to investigate superconductivity in layered oxides4. A wide range of candidate models have been proposed5,6,7,8,9,10, which emphasize single- or multi-orbital electronic structure, Kondo or Hund’s coupling and analogies to cuprates. Further experimental characterization of the superconducting state is needed to develop a full understanding of the nickelates.
Publisher Correction: Chemical gradients in human enamel crystallites
Correction to: Nature https://www.nature.com/articles/s41586-020-2433-3Published online 1 July 2020 In the HTML version of this Article, the affiliations of Prasanna V. Balachandran should not have included “Present address: Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, USA”. The other two affiliations (Department of Materials Science and Engineering and Department of Mechanical and Aerospace Engineering at the University of Virginia) are correct.
Chemical gradients in human enamel crystallites
Abstract Dental enamel is a principal component of teeth1, and has evolved to bear large chewing forces, resist mechanical fatigue and withstand wear over decades2. Functional impairment and loss of dental enamel, caused by developmental defects or tooth decay (caries), affect health and quality of life, with associated costs to society3.
Information overload: The promise and risk of quantum computing
Google recently announced a breakthrough in quantum computing. Sundar Pichai, Google's CEO, reportedly compared the achievement to the Wright brothers' first flight. Credit: Composite by Matt Field. (Creative Commons photos by Maurizio Pesce and Steve Jurvetson.) The English philosopher Sir Francis Bacon is often credited with saying “knowledge is power.” Although Bacon’s aphorism is still in circulation, the 16th century thinker clearly didn’t predict the advent of the modern-day search engine.
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