Search results (123)
|Destruction of Weyl nodes and a new state in tantalum arsenide above 80 teslas||
Weyl metals such as tantalum arsenide (TaAs) are predicted to have novel properties arising from a chirality of their electron spins. Scientists induced an imbalance between the left- and right-handed spin states, resulting in a topologically protected current. This was the first time this phenomenon, known as the chiral anomaly, has been observed.
|Pinning and melting of a quantum Wigner crystal||
This research established experimental evidence for the long sought-after transition of a small, two-dimensional sheet of electrons to a solid state.
|2018 Research Experiences for Teachers Program||
Ten Florida teachers worked side by side with MagLab researchers during the summer of 2018.
|Dirac fermions detected via quantum oscillations||
This work provides important insight into one of the parent materials of iron-based superconductors.
|Phase diagram of URu2–xFexSi2 in high magnetic fields||
Scientists used high magnetic fields and low temperatures to study crystals of URu2–xFexSi2. Using these conditions, they explored an intriguing state of matter called the "hidden order phase" that exhibits emergent behavior. Emergent behavior occurs when the whole is greater than the sum of its parts, meaning the whole has exciting properties that its parts do not possess; it is an important concept in philosophy, the brain and theories of life. This data provide strict constraints on theories of emergent behavior.
|High-temperature superconducting tape suitable for magnets at 50 teslas and beyond||
Recent measurements of superconducting tapes in the MagLab's 45-tesla hybrid magnet shows that the power function dependence of current on magnetic field remains valid up to 45T in liquid helium, while for magnetic field in the plane of the tape conductor, almost no magnetic field dependence is observed. Thus design of ultra-high-field magnets capable of reaching 50T and higher is feasible using the latest high-critical current density REBCO tape.
|Magneto-electric effects in metal-organic quantum magnet||
New materials that exhibit a strong coupling between magnetic and electric effects are of great interest for the development of high-sensitivity detectors and other devices. This paper reports on such a coupling in a specially designed material.
|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.