Publications by authors named "A Tova Saul"
Article Synopsis
- Ferroelectric Rashba semiconductors (FERSCs) like α-GeTe are key for developing advanced energy-efficient technologies focusing on spin-orbit coupling (SOC), a field known as spin-orbitronics.
- This study explores how the Rashba-SOC effect in α-GeTe films behaves as they become thinner, revealing that even at a thickness of just 1 nm, these films maintain a strong Rashba effect, measured to be 5.2 ± 0.5 eV·Å.
- The research employs angle-resolved photoemission spectroscopy (ARPES) and x-ray photoemission spectroscopy (XPS) to show that the presence of Sb atoms compensates for defects in the GeTe films
Article Synopsis
- - The study investigates the impact of sun exposure on the risk of progressive-onset multiple sclerosis (POMS) compared to relapse-onset multiple sclerosis (ROMS), finding that increased sun exposure is linked to a lower risk for both types.
- - Data was gathered from two nationwide studies, including environmental UV radiation exposure prior to the first MS symptoms among 153 POMS cases, 204 ROMS cases, and 558 control participants.
- - Results indicate that higher cumulative sun exposure reduces the onset risk for both POMS and ROMS, with a stronger effect observed for POMS, suggesting that lifelong sun exposure plays an important role in MS risk.
The CuOCl compound has been shown to be a high-temperature spin-driven multiferroic system, with a linear magneto-electric coupling. In this paper we propose a complete study of its magnetic structure. We derive the low energy magnetic Hamiltonian using multi-reference configuration interaction and the spin structure using Monte-Carlo simulations.
View Article and Find Full Text PDFBiomaterials such as spider silk and mussel byssi are fabricated by the dynamic manipulation of intra- and intermolecular biopolymer interactions. Organisms modulate solution parameters, such as pH and ion co-solute concentration, to effect these processes. These biofabrication schemes provide a conceptual framework to develop new dynamic and responsive abiotic soft material systems.
View Article and Find Full Text PDFWhy the pyrochlore-like antiferromagnet NaCuFis magnetically non-frustrated.
J Phys Condens Matter
July 2024
We present a theoretical study of the magnetic properties for the pyrochlore-like NaCuFcompound, which surprisingly experience little or no frustration. The magnetic effective exchange interactions were calculated usingmethods explicitly treating the electronic correlation. A model Hamiltonian (quantum Heisenberg Hamiltonian, and for comparison a spin 1/2 Ising Hamiltonian) was built from these interactions and used to determine the zero temperature magnetic order versus magnetic field.
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