DC Field Science Highlights

18 October 2022

Fermi Surface Transforms at the Onset of the Pseudogap State in a Cuprate Superconductor

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.

18 July 2022

Unconventional Charge Transport in Kondo insulator YbB12

Three complementary measurements in intense magnetic fields shed light on a very unusual material that behaves like a metal, but does not conduct electricity! 

11 March 2022

Crossover Between Coupling Regimes

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.

25 January 2022

Magnetostriction in AlFe2B2 at 25 T Measured by X-Ray Diffraction

Using X-ray diffraction, scientists can now detect atoms themselves moving further apart or closer together in high magnetic fields, giving science a crystal clear view of nature.

22 November 2021

New quantum tricks in nitride materials

Gallium nitride (GaN) and Niobium nitride (NbN) are widely used in today's technologies: GaN is used to make blue LEDs and high-frequency transistors while NbN is used to make infrared light detectors. This experiment explores whether a nitride-based device may be relevant for quantum technologies of the future.

22 September 2021

Linear-In Temperature Resistivity From Isotropic Planckian Scattering Rate

Electrons in metals behave like chaotic bumper cars, crashing into each other at every opportunity. While they may be reckless drivers, this result demonstrates that this chaos has a limit established by the laws of quantum mechanics. Using the 45T hybrid magnet and a crystal of high-temperature superconducting material, scientists were able to measure this boundary using high fields to bend electron trajectories to their will.

20 August 2021

First Spin Coherence Measurements in the MagLab's 32T Superconducting Magnet

The MagLab's 32 T all-superconducting magnet is now serving users at full field. An early experiment in the magnet identified an important milestone on the road to quantum computers.

28 May 2021

Exchange Bias Between Coexisting Antiferromagnetic and Spin-Glass Orders

A pane of window glass and a piece of quartz are both are transparent to light, but their atomic structure is very different. Quartz is crystalline at the atomic level while window glass is amorphous. This can also occur with magnetism at the atomic level in solids containing magnetic states such as antiferromagnetism (ordered) and spin-glass (disorded). This work describes the interaction (exchange bias) between ordered and disordered magnetic states and how the magnetic properties of the material are altered as a result.

26 March 2021

Broadening Participation in DC Field Facility by Bridging a Research Infrastructure Gap

Researchers based at four-year colleges and universities outside of the Research-1 (R1) tier face more obstacles to performing research than their colleagues from R1 universities or national laboratories with robust research infrastructures. Recognizing the need to bridge this infrastructure gap, the MagLab's DC Field Facility expanded access by adding two low-field magnet systems. These "on-ramp" systems facilitate critical access to materials research instrumentation by faculty and students from non-R1 institutions.

19 January 2021

Probing a Purported Spin Nematic State Utilizing the World Record 32T All-Superconducting Magnet

Nuclear magnetic resonance measurements were performed in the all-new 32 T superconducting magnet in an effort to confirm a new quantum state. Results confirm the game-changing nature of this magnet.

29 December 2020

Spectroscopic Decomposition Reveals Mangetization Mechanism in Multiferrroic Lutetium Iron Oxide Superlattices

Using electric fields as a switch to control the magnetism of a material is one of the goals behind the study of multiferroics. This work explores the microscopic origins of high temperature magnetism in one such material through the use of optical techniques in high magnetic fields, an approach that could help researchers understand magnetism in a large class of materials.

6 October 2020

Tunable Weyl Fermions in Chiral Tellurene in High Magnetic Fields

Topology, screws, spin and hedgehogs are words not normally found in the same scientific article but with the discovery of Weyl fermions in thin tellurine films they actually belong together. The work in this highlight describes how Qui et. al. used the unique properties of tellurine and high magnetic fields to identify the existence of Weyl fermions in a semiconductor. This discovery opens a new window into the intriguing world to topological materials.

1 September 2020

Hidden Magnetism Revealed in a Cuprate Superconductor

This research clarifies fundamental relationships between magnetism, superconductivity and the nature of the enigmatic “pseudogap state" in cuprate superconductors. The discovery provides an additional puzzle piece in the theoretical understanding of high-temperature superconductors - a key towards improving and utilizing these materials for technological applications.

28 July 2020

Inducing Magnetic Ring Currents in Non-Magnetic Aromatic Molecules

Magnetic induction is used in technology to convert an applied magnetic field into an electric current and vice versa. Nature also makes extensive use of this principle at the atomic and molecular level giving scientists a window to observe material properties. Using the 25 T Split-Helix magnet, researchers observed changes in the optical properties of organic materials due to currents induced by applied magnetic fields flowing in molecular rings, evidence that could increase the list of materials that could be used in future magnetic technologies.

1 June 2020

Magnetoelectric coupling at a transition between two spin states

Materials with magnetoelectric coupling - a combination of magnetic and electric properties - have potential applications in low-power magnetic sensing, new computational devices and high-frequency electronics. Here, researchers find a new class of magnetoelectric materials controlled by spin state switching.

23 March 2020

Exploring topological semimetals in high magnetic fields

Topological semimetals are an exciting new area of research due to their number of predicted and unexpected quantum mechanical states. Understanding these materials may also lead to quantum devices that function at near room temperature.

23 January 2020

Nematic Phase Weakens Superconductivity

A nematic phase is where the molecular/atomic dynamics show elements of both liquids and solids, like in liquid crystal displays on digital watches or calculators. Using high magnetic fields and high pressure, researchers probed the electronic states of an iron-based superconductor and found that its nematic state weakened superconductivity.

28 October 2019

Extreme re-entrant superconductivity

Studies of uranium ditelluride in high magnetic fields show superconductivity switching off at 35 T, but reoccurring at higher magnetic fields between 40 and 65 T.

28 October 2019

Emergent states of matter in chemically doped quantum magnets

Research on doped SrCu2(BO3)2 shows anomalies in the magnetization.

20 September 2019

Spin-lattice and electron–phonon coupling in 3d/5d hybrid Sr3NiIrO6

In Sr3NiIrO6 vibrations in the crystal lattice (phonons) play an important role in its intriguing magnetic properties that result in a very high coercive field of 55 T. Using a combination of pulsed and DC magnetic fields coupled with magnetization and far-infrared spectroscopy, researchers were able to conclusively link the phonons to the magnetic behavior.