These monthly highlights, selected by MagLab Director Greg Boebinger, represent the most promising and cutting-edge research underway in the lab’s seven user facilities.
Magic Gap Ratio at the "BCS Superconducting to Bose-Einstein Condensate" Crossover in the High-Tc Cuprates
A defining experimental signature of a crossover in the strength of the pairing interactions from the weak coupling BCS to the strong coupling Bose-Einstein condensation limit has been discovered in high temperature superconductors.
Zeolite catalysts are critical to generating the molecules that provide the building blocks of society’s energy and materials needs. Discerning a clear atomic-level picture of the active sites remains challenging for most current technologies, but here we show that solid-state nuclear magnetic resonance (ssNMR) methods coupled with ultra-high magnetic field instruments, can and has provided extremely useful information for catalyst development.
New research shows that high concentrations of polycyclic aromatic hydrocarbons (PAHs) found in coal tar pavement sealants are oxidized into toxic, water-soluble compounds by sunlight and subsequently washed into the environment by rainwater, polluting natural water systems, negatively impacting marine ecosystems and public health.
In high-temperature superconductors, a region exists between the superconducting and normal states known as the pseudogap state. Using the 45T hybrid magnet, scientists have determined that magnetism plays a previously unknown role in the development of the pseudogap phase.
Large superconducting magnets need multi-conductor cables, which act like multi-lane freeways to allow electricity to switch lanes if one gets blocked. Here cross-sectional images of CORC wires reveal insights to improve the contact between conductors.
Electron spin coherence was enhanced through engineering of so-called clock transitions in molecular magnets, an advance in quantum computing strategies. The use of clock transitions to enhance quantum coherence is employed in trapped-ion quantum computers, an approach that may also be viable in magnetic molecules to yield next-generation quantum technologies.
MRI scans taken after a stroke show brightness around the injury, the origins of which have been a long-standing and vexatious mystery for scientists. This work suggests these MRI signal changes result from fluid changes in glial cell volumes, results that could advance our ability to distinguish reversible and irreversible stroke events or provide a better understanding for other disorders such as Parkinson's, Alzheimer's, and mood or sleep disorders.
The MagLab's ultrahigh-field pulsed magnets require materials with both high mechanical strength and high electrical conductivity. One of these materials is Glidcop® AL-60, an alumina particle strengthened copper. This research studies the microstructure of this material to improve the construction and endurance of these magnets.
A new 17O solid-state NMR technique, employed on the highest-field NMR spectrometer in the world (the 36 T Series Connected Hybrid), identifies water molecules in different layers of a model membrane for the first time.
Three complementary measurements in intense magnetic fields shed light on a very unusual material that behaves like a metal, but does not conduct electricity!
Using the world's most powerful mass spectrometer, scientists have developed a new method to profile complex PFAS mixtures at the molecular level, facilitating future PFAS characterization in support of environmental and human health studies.
Generally, light transmission is symmetrical - it's the same if you shine a light through a material forward or backwards. Using powerful pulsed fields, researchers revealed one-way transparency in a nickel-tellurium-oxygen based material showing that light flows one way across the telecom range – a finding that opens the door to exciting new photonics applications.
Using far-infared magnetospectroscopy in high magnetic fields, scientists probed coupled electronic and vibrational modes in a molecular magnet that are of interest in future classical and quantum information applications.
Understanding the organic composition of peat wetland soils can determine whether the carbon sources may be converted into carbon dioxide gas, work that could improve existing climate models and better predict the impact of increasing carbon dioxide to wetland ecosystems.
The start of a sustainable business model for manufacturing advanced superconductors was established by a panel of industry leaders, university faculty, national lab leaders, and science facility project heads, including representatives from the MagLab.
This new technique for mapping out atom placements in the active site of enzymes could unlock the potential for finding new therapeutics.
Theory predicted that the transition between the superconducting and superfluid regimes should be continuous for electrons and holes in solid materials, but recent high magnetic field experiments performed by researchers from Columbia, Harvard and Brown Universities demonstrated the crossover between coupling regimes.
A new Blood Proteoform Atlas maps 30,000 unique proteoforms as they appear in 21 different cell types found in human blood. The MagLab's 21 tesla FT-ICR mass spectrometer contributed nearly a third of the atlas' proteoforms.
High-magnetic-field, high-frequency electron paramagnetic resonance demonstrates how coordination chemistry can be leveraged to stabilize a desired electronic/magnetic state in an organic molecule. In this experiment, the long-sought magnetic (triplet) ground state in a benzene ring is stabilized by a pair of metal ions above and below the six-carbon ring.
A new class of correlated quasiparticle states discovered in a multi-valley semiconductor using optical absorption measurements in pulsed magnetic fields. This new type of multi-particle state results when excitons interact simultaneously with multiple electron reservoirs that are quantum-mechanically distinguishable by virtue of having different spin and/or valley quantum numbers.