Scientists working at the MagLab have made a breakthrough in identifying the state from which high-Tc superconductivity emerges. Their results are in the June 19th issue of the journal Nature.
The high-magnetic field phase diagram to 65 Tesla of the MV2O4 family (M = Cd, Mg) reveals new multiferroic phase transitions that point to an unusual interplay between spin-orbit interactions and frustrated magnetism.
Scientists of the NHMFL-PFF have employed Resonant Ultrasound Spectroscopy to reveal a thermodynamic signature of the “Pseudo-Gap” within and beyond the superconducting phase boundary of YBCO. This experiment provides thermodynamic evidence that the pseudo gap is connected to the superconducting ground state in the cuprate materials.
Using optical spectroscopy and the MagLab’s unique 60 tesla long-pulse magnet in Los Alamos, scientists have shown how nitrogen dopant atoms in gallium arsenide (GaAs) can form extended “supercluster” states or can break up into localized nitrogen clusters. Nitrogen-doped GaAs (GaAs1-xNx) is a semiconductor alloy with potential applications for a wide range of energy-related applications such as photovoltaics.
Multiferroics — “Spintronics without heat” — coupled ferromagnetism and ferroelectricity can provide a new class of functional materials for needed applications including magnetic sensing, data storage and manipulation, high–frequency and high–power electronics, and energy savings.
Physicist Ross McDonald pushes experimental boundaries with his work in Los Alamos.
When Mother Nature whispers, physicist Albert Migliori listens.
Magnetic systems provide controllable “model” systems to study interacting many body quantum effects, relevant to poorly understood problems beyond the realm of magnetism. For example, disorder leads to Bose glass behavior, enabling study of the Bose-glass to BEC transition in quantum magnets — a key component to understanding the superconductor-to-insulator quantum phase transition. High magnetic fields drive Bose glasses into Bose-Einstein condensates.
Like so many things in life, there are tradeoffs in creating high magnetic fields.