Search results (116)
|Novel metallofullerene boosts dynamic nuclear polarization||
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.
|Ceramic insulation for high-temperature superconducting wire||
MagLab scientists and engineers have developed a special coating on Bi-2212 superconducting wire for electrical insulation in superconducting magnets that will enable the wire to be used in ultra-high field nuclear magnetic resonance magnets.
|Switchable transmission of quantum Hall edge states in bilayer graphene||
In the 14 years since its discovery, graphene has amazed scientists around the world with both the ground-breaking physics and technological potential it displays. Recently, scientists from Penn State University added to graphene's gallery of impressive scientific achievements and constructed a map that will aid future exploration of this material. This work is emblematic of the large number of university-based materials research efforts that use the MagLab to explore the frontiers of science.
|Exciton states in a new monolayer semiconductor||
Analogous to the unique spectral fingerprint of any atom or molecule, researchers have measured the spectrum of optical excitations in monolayer tungsten diselenide (WSe2), which is a member of a new family of ultrathin semiconductors that are just one atomic layer thick.
|2D electron-hole "superconductor": Topological excitonic insulator||
Decades ago a mechanism was proposed that described a quantum phase transition to an insulating ground state from a semi-metal (excitonic insulator, or EI) using very similar mechanics to those found in the BCS description of superconductivity. The discovery of this transition to an EI in InAs/GaSb quantum wells is striking not only for the long-sought experimental realization of important physics, but also the presence of recently proposed topological behavior.
|Tweaked recipe delivers record current-carrying capacity in Bi-2212 wires||
MagLab-industry partnership ups the critical current density of this high-temperature superconductor by a third.
|Dynamics of helium-3 in nanotubes||
Experiment shows that emergent quantum fluid behavior of helium-3 confined to one dimension is observable using special low-temperature NMR techniques.
|New magnetic topological semimetal has energy-saving potential||
Researchers discover that Sr1-yMn1-zSb2 (y,z < 0.1) is a so-called Weyl material that holds great promise for building devices that require far less power.
|High-temperature superconducting coils tested for future NMR magnet||
Bi-2223 shows promise for 30-tesla all-superconducting instrument for nuclear magnetic resonance.
|Selective mass enhancement close to a quantum critical point||
This finding sheds light on the role of quasiparticle mass enhancement near a quantum critical point in one of the leading families of high-temperature superconductors.