Materials Sciences and Engineering Research Highlights

Evolution of Magnetic Fluctuations under Pressure in the Spin Triple Superconductor Candidate UTe2

Pressure dependence of magnetic fluctuations in the spin triplet superconductor candidate UTe2 was investigated by nuclear magnetic resonance technique.

Complex magnetism emerges from flat electronic bands

Flat bands are localized electronic states in special lattice geometries. Electrons occupying flat bands experience amplified interactions that can drive electronic instabilities. The current findings provide compelling evidence for the critical role that flat bands play in the emergence of magnetism and their sensitivity to electron concentration.

New flux methods uncover a charge density wave in the intermetallic oxides R5Pb3O (R = La and Ce)

This work identifies a new model system to study electron-phonon coupling driven phase transitions. The synthetic procedure introduces a novel flux for discovery and crystal growth of subvalent quantum materials.

Graphs and figures that support the highlihg

First Microscopic Evidence for the Exotic Magnetic Ground State of the Double-trillium Lattice Spin Liquid Candidate KSrFe2(PO4)3

The magnetic ground state of the Double-trillium Lattice Spin Liquid Candidate KSrFe2(PO4)3 was investigated by nuclear magnetic resonance technique.

Temperature evolution of 31P NMR spectra

Scanning tunneling microscopy reveals Si vacancies at the buried graphene-SiC interface

A direct relation between the atomic-scale structure of the epitaxial graphene - SiC(0001) interface, which includes silicon (Si) vacancies, and local electronic properties has been established.

Images of STM topographies and visualization of the experiment.

Mode-selective Fano Resonance in Dirac Material ZrTe5

Terahertz Raman scattering experiments reveal a Fano resonance in ZrTe₅, characterized by Raman mode selectivity and temperature-dependent enhancement.

Graphs and figures related to content in highlight.

Topography of new Fermi arcs revealed

The topography of Fermi arcs in trigonal PtBi2 (ti-PtBi2) was revealed. Unlike in other topological materials, the arc in t-PtBi2 is well separated from other bands, which allows precise determination of its end-points, dispersion, and Fermi crossing of the band that forms it.

images of fermi arcs from the highlight research.

Controllable Circularly Polarized Chiral Metasurface Laser

Numerical simulations demonstrate a cavity-free metasurface laser capable of controllable, purely circularly polarized output via direct lasing from chiral resonant modes of plasmonic meta-atoms strongly coupled to quantum gain.

Figures that support information in the highlight.

Near-room-temperature ferromagnetism in pressurized SrCo2P2

SrCo2P2 undergoes a pressure-induced collapsed-tetragonal (cT) phase transition transition-driven by interlayer pnictogen bonding resulting in a remarkable near room temperature ferromagnetic ordering (TC up to 260 K) in the cT phase.

Graph of pressure dependence of electronic, magnetic and l properties on SrCo2P2

Accurate calculation of rare-earth magnetic anisotropy

Enforcing Hund’s rules in density functional theory (DFT) calculations is necessary for reliable modeling of rare-earth magnetic anisotropy (MA). Scientists at Ames National Laboratory and George Mason University collaborated to identify and address the most fundamental challenge in accurately modeling rare-earth MA within DFT.