Showing 7 results for Researcher: Gabor Halasz
March 4, 2025
3 MIN READ
Working at nanoscale dimensions, billionths of a meter in size, a team of scientists led by ORNL revealed a new way to measure high-speed fluctuations in magnetic materials. Knowledge obtained by these new measurements could be used to advance technologies ranging from traditional computing to the emerging field of quantum computing.
February 3, 2025
1 MIN READ
Scientific Achievement: Hidden spin fluctuations in a room-temperature ferromagnet consistent with three-dimensional spin interactions were unveiled by NV magnetometry and relaxometry.Significance and Impact: The power-law scaling observed in the magnetic texture of Sr2FeReO6 provides new opportunities to understand how local spin-fluctuations become correlated near quantum and classical phase transitions.DOI: 10.1021/acs.nanolett.4c05401
September 26, 2024
1 MIN READ
Scientific Achievement: Neutron scattering has revealed the presence of quantum spin liquid (QSL) features in an S = 1/2 triangular lattice antiferromagnet (TLAF) and demonstrated its resilience to magnetic anisotropy.Significance and Impact: This discovery sheds light on the potential emergence of QSL under anisotropic interactions, expanding the range of materials considered as QSL candidates.DOI: 10.1038/s41467-024-51618-w
September 29, 2023
1 MIN READ
Scientific Achievement: A hidden magnetic phase was discovered and controlled in the ultra high-conductivity, nonmagnetic oxide PdCoO2 through targeted straining of the incipiently magnetic CoO2 and Pd layer using helium implantation.Significance and Impact: Gaining continuous control of magnetic properties will open the door for precisely tailored properties that can be used to realize new nanoscale magnetic devices with low-loss interconnects in a monolithic platform.DOI: 10.1021/acs.nanolett.3c01065
March 22, 2023
1 MIN READ
Scientific Achievement: Twin boundaries in FeSe preferentially attract superconducting vortices. The resulting incommensurate potential produces regular 2D and 1D vortex lattices, precisely variable intervortex distance, and profound geometric size effects.Significance and Impact: Control over vortex interactions is crucial to quantum information devices. Our findings open an intrinsic path to control of vortex geometry, bypassing damaging lithography in favor of topological defects and self-organization.DOI: 10.1021/acs.nanolett.3c00125
June 30, 2021
1 MIN READ
Scientific Achievement: Researchers uncovered giant phonon anomalies that are a signature of fractional excitations in a quantum spin liquid, α-RuCl3. Significance and Impact: This experimental work for the first time validates phonons as a sensitive probe of hidden fractional and non-local excitations, which may advance quantum information science.DOI: 10.1038/s41467-021-23826-1.
