Highlights
Apr 4, 2025
Big Idea: Quantum Leap
MEM-C IRG-1: Ferrimagnetic CuCr2Se4 Nanocrystals with Strong Room-Temperature Magnetic Circular Dichroism
Brandi Cossairt, Daniel R. Gamelin, Jiun-Haw Chu
Magnetic materials are vital in technologies from spintronics to biomedicine. Coupling magnetism with optical responses broadens their utility to sensing, magneto-optical memory, and optical isolation. Chromium chalcogenide spinels display particularly rich magnetism and magneto-optical properties. Colloidal nanocrystals (NCs) offer routes to solution-processing, heterointegration, and property modulation through size, shape, or heterostructure control, but many chalcogenide spinels have never been synthesized at the nanoscale, and little control over size or morphology has been demonstrated.
Jan 22, 2025
The University of Tennessee - Knoxville
CAMM Partners with ORNL to Host “Neutron Day”
CAMM’s ECOR Team & Antonio dos Santos of ORNL coordinated the event
UTK-MRSEC The Center for Advanced Materials & Manufacturing partnered with Oak Ridge National Laboratory to host the inaugural "Neutron Day," an event designed to deepen collaboration and foster interdisciplinary research connections.
Jan 22, 2025
The University of Tennessee - Knoxville
Quantum Materials and Machine Learning Workshop
Yang Zhang (UTK-MRSEC), Jacob Gayles (USF), Yishu Wang (UTK-MRSEC), David Mandrus (UTK-MRSEC / Oak Ridge), Student Organizer - Louis Primeau (UTK-MRSEC)
The recent Quantum Materials and Machine Learning Workshop brought together 22 invited speakers and in total 50 graduate students, postdoc, faculty attendees from 18 different institutions for an intensive exploration of cutting-edge developments at the intersection of quantum physics, materials science, and machine learning. The program featured established researchers alongside three postdoctoral fellows, fostering meaningful dialogue between different career stages.
Jun 13, 2024
Big Idea: Quantum Leap
CDCM Industrial Mentorship Program Prepares Students for the Workforce of Tomorrow
The Industrial Mentorship Program connects undergraduate students, graduate students and post-doctoral fellows to a PhD level mentor in industry. This program is designed to (i) expose participants to fundamental research as it relates to societal and economic development; (ii) enable them to broaden their networks; and (iii) facilitate a successful transition into the workforce. The Industrial Mentor program entered its sixth program cycle during 2023-2024 and since its inception, 147 students have participated as mentees in the program, with 30 of those from the CIMA PREM at Texas State University.
Jun 13, 2024
University of Texas at Austin
K-5 Research Experience for Teachers (RET)
CDCM’s Research Experiences for Teachers (RET) program engages elementary school teachers in materials research at UT Austin during the summer and has created lasting impact over the past six years. The program aims to increase teacher efficacy in research practices and guide teachers in integrating what they learn into their instructional practice. The end goals are to enhance students’ engagement in science and increase students’ awareness of and interest in STEM fields.
Jun 13, 2024
University of Texas at Austin
Nonlinear Rheological Behavior of Dynamic Covalent Gels
Hydrogels with dynamic linkers have garnered intense interest for applications that require flow, including injectable delivery vehicles and 3D bioprinting inks. However, to fully enable these applications, there remains a need to understand how linking chemistry affects gelation and nonlinear rheological properties. To probe this relationship, UT Austin MRSEC researchers developed synthetic multi-arm polyethylene glycol (PEG) gels linked with dynamic covalent bonds.
Jun 13, 2024
University of Texas at Austin
Interplay between phonon chirality and electronic topology
UT Austin researchers used polarization-dependent terahertz magnetospectroscopy to observe Zeeman splittings and diamagnetic shifts in a series of Pb1-xSnxTe films, which transition from a topologically trivial insulator to a topological crystalline insulator (TCI) phase as the Sn concentration increases beyond 0.32. This study demonstrates a substantial phonon magnetic moment films in the TCI phase exhibited phonon magnetic moment values significantly larger—by two orders of magnitude—than those in the topologically trivial sample.
Jun 13, 2024
University of Texas at Austin
Spin–orbit exciton–induced phonon chirality in a quantum magnet
The interplay of charge, spin, lattice, and orbital degrees of freedom in correlated materials often leads to rich and exotic properties. Recent studies have brought new perspectives to bosonic collective excitations in correlated materials. MRSEC researchers with UT Austin report phonon properties resulting from a combination of strong spin–orbit coupling, large crystal field splitting, and trigonal distortion in CTO.
Jun 13, 2024
University of Texas at Austin
Crowding Alters Secondary Structure in F-actin Bundles
The cytoskeletal component actin plays a crucial role in various cellular functions, including cell shape regulation and intracellular transport, by forming filaments and networks. Despite the current understanding of actin's morphological versatility, the impact of crowded environments—specifically how actin filaments organize into bundles and how this organization changes the protein secondary structure—remains under-explored. Here, we used two-dimensional infrared (2D IR) spectroscopy and structure based spectral calculations to map out structural changes of actin filaments under two degrees of crowding and bundling.
Jun 13, 2024
Ohio State University
Internal Advisory Council: Promoting the Student Perspective
The CEM Student Internal Advisory Council advises CEM in the interests of students and postdocs and organizes technical and team-building events.
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