Highlights
Discovery and Single Crystal Growth of High Entropy Pyrochlores
High entropy compounds are an emerging class of functional materials in which short range order enables superior combinations of properties not present in traditional pure or doped structures.
Pushing boundaries: High pressure, supercritical optical floating zone materials discovery
An invited perspective highlighting research in the high pressure domain at PARADIM was recently published in the Journal of Solid State Chemistry as part of a 50th anniversary special edition.
Cleaning up a Quantum Material: from Quantum Enigma to Quantum Oscillations
Sr2RuO4 is the most disorder-sensitive superconductor known. It has also been a leading candidate for a novel type of quantum computer that would enable calculations to occur over much longer time scales before suffering decoherence than is the case for today’s superconductor-based quantum computers.
When Seemingly Passive Substrates are Active
Substrates traditionally play a supporting role for the thin films grown upon them by providing purely structural support. Nonetheless for monolayer-thick transition metal dichalcogenides , the substrate plays an active role by providing or removing charge from the TMD layer in which it is in intimate contact.
When it Comes to Seeing Atoms, Blurrier is Better
One way to see atoms is to focus a beam of high-energy electrons to a tiny spot smaller than an atom and scan it around. The clarity of the resulting image is a tradeoff between collecting sufficient electrons to get a good signal, but too many electrons and the sample will be damaged.
Atomic-Scale Visualizations of Low-Temperature Phase Transitions
Probing the structure of layered materials offers a gateway to better understand and potentially manipulate their electronic properties. While interactions within the individual layers are dominant, the proximity of neighboring layers significantly impacts the properties of such quasi-2D systems. Transition-metal dichalcogenides containing tellurium are especially noteworthy for their modulated structures and prominent interlayer contributions.
Superconducting Sr2RuO4 films
In virtually all implementations of a quantum computer, one of the states is an excited state that must, of necessity, decay spontaneously into its ground state. A fascinating alternative form of quantum computing has been proposed: braiding pairs of ground-state non-abelian anyons in two dimensions.
A Guinness World Record: The Highest Resolution Microscope, enabled by a new detector technology
The work was recognized as the highest resolution microscope (of any type) by Guinness World Records in July 2018.
World-Record High Pressure Floating Zone Crystal Growth
A new world record for highest pressure of a floating zone crystal growth, at 300 atmospheres, twice the previous record, was achieved by PARADIM staff in the United States in collaboration with our industry partner SciDre. This work was done at Johns Hopkins University by Tyrel M. McQueen and W. Adam Phelan.
Stretching Valleytronic Materials far beyond Conventional Limits to Tune their Properties
PARADIM researchers have created superlattice valleytronic materials—still just a single monolayer thick—by modulating the sequence in which the gas precursors are supplied during growth.
Freeing wafer-scale stacking of single crystals from the shackles of epitaxial constraints
Through the use of “remote epitaxy”—where graphene separates a growing oxide thin film from its substrate—superb crystallinity is achieved together with the ability to peel off oxide layers and create stacks of multiple high-quality layers assembled in a user-defined sequence. The approach heralds a new platform for the limitless stacking of any material into any heterostructure.
PARADIM machine learning model for assisted optical floating zone synthesis
PARADIM has deployed the first deep learning model of crystal synthesis to assist facility users as they optimize synthesis conditions and accelerate the realization of their materials design plans.
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