FSU engineers improve performance of high-temperature superconductor wires

Florida State University researchers have discovered a novel way to improve the performance of electrical wires used as high-temperature superconductors (HTS). Researchers used high-resolution scanning electron microscopy to understand how processing methods influence grains in bismuth-based superconducting wires (known as Bi-2212).

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New Phenomena for the Design of Future Quantum Devices

Research has shown that the topology of the electronic states in a Weyl semimetal can leave fingerprints on their phonon properties. This happens because of a type of electron-phonon interaction called the Kohn anomaly that impacts how electrons screen phonons through a material. This instability can lead to new electronic properties in materials.

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DNA Origami Enables Fabricating Superconducting Nanowires

In AIP Advances, researchers describe how to exploit DNA origami as a platform to build superconducting nanoarchitectures. The structures they built are addressable with nanometric precision that can be used as a template for 3D architectures that are not possible today via conventional fabrication techniques. Inspired by previous works using the DNA molecule as a template for superconducting nanowires, the group took advantage of a recent bioengineering advance known as DNA origami to fold DNA into arbitrary shapes.

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Brookhaven’s Ivan Bozovic Wins 2021 James C. McGroddy Prize for New Materials

The American Physical Society has selected physicist Ivan Bozovic of the U.S. Department of Energy’s Brookhaven National Laboratory as a co-recipient of the 2021 James C. McGroddy Prize for New Materials. Bozovic and his collaborators were recognized “For pioneering the atomic-layer-by-layer synthesis of new metastable complex-oxide materials, and the discovery of resulting novel phenomena.”

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Quantum Materials Quest Could Benefit From Graphene That Buckles

Graphene, an extremely thin two-dimensional layer of the graphite used in pencils, buckles when cooled while attached to a flat surface, resulting in beautiful pucker patterns that could benefit the search for novel quantum materials and superconductors, according to Rutgers-led research in the journal Nature. Quantum materials host strongly interacting electrons with special properties, such as entangled trajectories, that could provide building blocks for super-fast quantum computers. They also can become superconductors that could slash energy consumption by making power transmission and electronic devices more efficient.

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E-waste eating protein creates rare earth elements

Lawrence Livermore National Laboratory (LLNL) researchers, in collaboration with Pennsylvania State University (PSU) and Idaho National Laboratory (INL), have designed a new process, based on a naturally occurring protein, that could extract and purify rare earth elements (REE) from low-grade sources. It could offer a new avenue toward a more diversified and sustainable REE sector for the United States. The protein, lanmodulin, enables a one-step extraction and purification of (REE)s from complex metal mixtures, including electronic waste and coal byproducts.

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Scientists See Energy Gap Modulations in a Cuprate Superconductor

Scientists studying high-Tc superconductors at the U.S. Department of Energy’s Brookhaven National Laboratory have definitive evidence for the existence of a state of matter known as a pair density wave–first predicted by theorists some 50 years ago. Their results show that this phase coexists with superconductivity in a well-known bismuth-based copper-oxide superconductor.

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First detailed electronic study of new nickelate superconductor finds 3D metallic state

It represents an entirely new type of ground state for transition metal oxides, and opens new directions for experiments and theoretical studies of how superconductivity arises and how it can be optimized in this system and possibly in other compounds.

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