Spin nematic state in YbMnBi₂. Credit: Yaofeng Xie et al., “Spin Nematic Liquid Crystal and Scalar Spin Chirality in Tetragonal Lattice YbMnBi₂,” Phys. Rev. X 16, 041001 (2026), CC BY 4.0.
Liquid-crystal-like magnetism in YbMnBi₂ featured in Phys.org
October 8, 2026
Phys.org has featured our recent Physical Review X study of YbMnBi₂. Using polarized neutron scattering, we found that magnetic fluctuations develop a preferred direction above the temperature where long-range magnetic order appears, forming a dynamic spin nematic state analogous to a liquid crystal. Our results offer a possible explanation for the material’s unusual Hall and Nernst responses and suggest a route to controlling electronic behavior through collective spin correlations.
Read the paper: Phys. Rev. X 16, 041001 (2026).
Rice researchers discover new way to tune electron flow in altermagnet material.
Rice researchers and collaborators demonstrated that uniaxial strain can tune the anomalous Hall effect in the altermagnet manganese telluride (MnTe), including reversing its sign. Published in Physical Review X, the study also showed that strain selects a single magnetic domain, allowing the team to resolve the magnetic structure and sharpen the Hall response. The sign reversal occurs without shifting the magnetic transition temperature, pointing to strain-induced changes in electronic Berry curvature and offering a route to mechanical control of altermagnetic transport.
Read the paper: Phys. Rev. X 16, 031033 (2026).
A small squeeze reveals a link between weak magnetism and the Hall effect in iron sulfide.
A gentle squeeze has helped Rice physicists uncover a close link between weak magnetism and the anomalous Hall effect in hexagonal iron sulfide (h-FeS). Reporting in Advanced Materials, the team showed that compressive strain suppresses the tiny net magnetic moment and the Hall signal together. Neutron diffraction revealed changes in magnetic domain populations, while the underlying in-plane magnetic structure remained intact. The findings show how strain can control these coupled properties in an altermagnet candidate.
Read the paper: Adv. Mater. e74398 (2026).
Rice unites global quantum materials synthesis leaders in Paris for cutting-edge workshop.
"Leading researchers from around the world gathered in Paris June 9-12 for the 2026 Rice Center for Quantum Materials and Korean Academy of Science and Technology InterAcademy Global Workshop on Quantum Materials Synthesis, a four-day meeting focused on advancing one of the most important frontiers in modern materials research."
Pengcheng Dai elected to American Academy of Arts and Sciences.
''Rice University professor Pengcheng Dai has been elected to the American Academy of Arts and Sciences, one of the oldest and most prestigious learned societies in the nation.
Professor Dai’s election to the American Academy of Arts and Sciences recognizes the profound impact of his work in condensed matter physics,” said Amy Dittmar, the Howard R. Hughes Provost and executive vice president for academic affairs. “His contributions are advancing understanding in his field and exemplify the kind of rigorous, high-impact scholarship that defines Rice. This honor highlights both his leadership as a researcher and the global reach of our faculty’s work.
Dai is being recognized for establishing spin excitations as the unifying experimental signature linking magnetism and superconductivity across unconventional superconductors. His neutron scattering experiments provided decisive evidence connecting magnetic correlations to superconducting pairing in both cuprates and iron-based superconductors."
Material previously thought to be quantum is actually new, nonquantum state of matter.
"Magnetic materials in a quantum spin liquid phase are of great interest in the pursuit of exotic state of matter and quantum computation. But in the quantum realm, things are not always what they seem. A recent study, published in Science Advances and co-led by Rice University’s Pengcheng Dai, found that the material cerium magnesium hexalluminate (CeMgAl11O19) was not actually in a quantum spin liquid phase despite evidence suggesting it was."
Rice convenes global researchers to advance understanding of quantum geometry in materials.
"Quantum materials underpin next-generation technologies, from quantum computing to ultra-efficient electronics. To accelerate discovery in these emerging fields, Rice University hosted the 2025 Rice Center for Quantum Materials (RCQM) Winter School on Quantum Materials Synthesis and Workshop on Quantum Geometry Nov. 10-14, bringing together more than 100 researchers, students and scientific leaders from around the world."
Researchers gather at Rice to bridge quantum materials and quantum information.
"More than 80 scientists from around the world gathered at Rice University for the eQMA Workshop on Hidden Orders and Quantum Entanglement, part of the UNESCO 2025 International Year of Quantum Science and Technology celebration. Hosted by the Extreme Quantum Materials Alliance (eQMA) in collaboration with Rice’s Smalley-Curl Institute, the three-day event Oct. 6-8 featured lectures, discussions and collaborative exchanges among leading theorists and experimentalists in the field."
Rice physicists’ new lab focused on emergent magnetic materials, funded by Department of Energy.
"Four physicists from Rice University have received a $4.4 million grant over three years from the U.S. Department of Energy to establish the Rice Laboratory for Emergent Magnetic Materials (RLEMM). This new research center will investigate the fundamental interactions of magnetism and its role in next-generation technologies."
Physicists confirm elusive quantum spin liquid in new study.
"An international team of scientists led by Rice University’s Pengcheng Dai has confirmed the existence of emergent photons and fractionalized spin excitations in a rare quantum spin liquid. Published in Nature Physics on June 19, their findings identify the crystalline compound cerium zirconium oxide (Ce₂Zr₂O₇) as a clear, 3D realization of this exotic state of matter."
Researchers unlock hidden pathway to tunable magnetic devices.
"Led by Pengcheng Dai, the Sam and Helen Worden Professor of Physics and Astronomy, the researchers uncovered the cause behind a vanishing electronic phenomenon in a class of crystalline materials known as kagome lattice, a geometric arrangement of corner-sharing triangles named after a traditional Japanese basket pattern. This discovery reveals how heating methods impact the presence of a charge density wave (CDW), a quantum pattern of electron arrangement, in the kagome metal iron germanide (FeGe). It also demonstrates how its reappearance enhances magnetic and electronic properties."
Rice hosts global workshop on quantum materials and entanglement.
"Organized by Rice University’s Extreme Quantum Materials Alliance (eQMA) in collaboration with the Smalley-Curl Institute, the eQMA Workshop on Quantum Materials and Entanglement brought together more than 100 experts and attendees from across the globe to discuss cutting-edge advancements in quantum research.
Rice students played an active role in the discussions. Bin Gao, a postdoctoral associate in physics and astronomy, presented on the emergent photons and fractionalized excitations in a quantum spin liquid......"
Rice hosts 2024 Workshop on Quantum Materials Synthesis.
"The Rice Center for Quantum Materials at Rice University recently hosted the second edition of the Workshop on Quantum Materials Synthesis, an event dedicated to communicating recent developments in the field, identifying new research areas and providing a platform for theorists and experimentalists to come together for discussion and knowledge exchange."