EMR Science Highlights
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.
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.
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.
High-resolution electron magnetic resonance studies of the spin-wave spectrum in the high-field phase of the multiferroic Bismuth ferrite (BiFeO3) reveal direct evidence for the magnetoelastic coupling through a change in lattice symmetry from rhombohedral to monoclinic. This study provides important information for designing future spintronics devices based on BiFeO3.
An exciting advance of interest to future molecular-scale information storage. By using the uniquely high frequency Electron Magnetic Resonance techniques available at the MagLab, researchers have found single molecule magnets that feature direct metal orbital overlap (instead of weak superexchange interactions), resulting in behavior similar to metallic feromagnets that is far more suitable to future technologies than previous molecular magnets.
This work reports the first observation of the dynamical generation of a spin polarized current from an antiferromagnetic material into an adjacent non-magnetic material and its subsequent conversion into electrical signals
This study reports the first transition metal compounds featuring mixed fluoride–cyanide ligands. A significant enhancement of the magnetic anisotropy, as compared to the pure fluoride ligated compounds, is demonstrated by combined analysis of high-field electron paramagnetic resonance (HF-EPR) spectroscopy and magnetization measurements.
Electron spin resonance work shows how transition metal can retain quantum information, important work on the path to next-generation quantum technologies.
This finding demonstrates a path forward to dramatically enhance sensitivity for molecule concentration measurement by magnetic resonance using Overhauser DNP.
The findings contribute to scientists' understanding of magnetic materials that could point the way to future applications.
Insights into the structure and movement of T cell surface proteins could lead to new ways to fight cancers, infections and other diseases.
This work investigates a series of oxoiron complexes that serve as models towards understanding the mechanism of catalysis for certain iron-containing enzymes.
In this study, researchers added a low concentration of the endohedral metallofullerene (EMF) Gd2@C79N to DNP samples, finding that 1H and 13C enhancements increased by 40% and 50%, respectively, at 5 teslas and 1.2 Kelvin.
This high-field EPR study of the H-Mn2+ content in the bacterium Deinococcus Radiodurans provides the strongest known biological indicator of cellular ionizing radiation resistance between and within the three domains of the tree of life, with potential applications including optimization of radiotherapy.
With just a drop of water, a cobalt-based material changes both color and magnetic properties.
In the field of inorganic chemistry, magneto-structural correlations have been used to rationally design molecules with desirable properties, and to relate these properties to the electronic and geometric structures. In turn, such studies provide powerful tools for understanding important catalytic processes, as well as elucidating the structures of active sites in metalloproteins. This study reveals an unusually strong sensitivity of the magnetic properties of a CoS4 molecule to minute changes in its structure.
This area of research could help scientists understand high-temperature superconductivity and other mysteries.
This approach to building “qubits” could be a promising tool for developing quantum computers.
Scientists created a molecular nanomagnet based on a single nickel atom with record-high magnetic anisotropy — a quality that makes it a promising building block for applications like memory storage.
A recent high-field EPR study by MagLab users from Wayne State and Grand Valley State Universities has demonstrated that minor changes in the periphery of a nickel-containing molecule can lead to a dramatic reorganization of its electron distribution. This in turn, induces a major shift in the reactivity of this compound.