A5084596708- Magnetic properties of thin films
- Magneto-Optical Properties and Applications
- Multiferroics and related materials
- Magnetic and transport properties of perovskites and related materials
- Iron oxide chemistry and applications
- Additive Manufacturing and 3D Printing Technologies
- Magnetic Properties and Applications
- Substance Abuse Treatment and Outcomes
- Theoretical and Computational Physics
- Ferroelectric and Piezoelectric Materials
- Magnetic Properties and Synthesis of Ferrites
- Innovative Microfluidic and Catalytic Techniques Innovation
- 3D Printing in Biomedical Research
- Respiratory viral infections research
- Homelessness and Social Issues
- Cannabis and Cannabinoid Research
- Surface Roughness and Optical Measurements
- Electronic and Structural Properties of Oxides
- Congenital Diaphragmatic Hernia Studies
Massachusetts Institute of Technology
2022-2024
Lawrence Livermore National Laboratory
2020
University of Utah
1996
Volumetric additive manufacturing (VAM) forms complete 3D objects in a single photocuring operation without layering defects, enabling printed polymer parts with mechanical properties similar to their bulk material counterparts. This study presents the first report of VAM-printed thiol-ene resins. With well-ordered molecular networks, chemistry accesses materials wide range properties, moving VAM beyond limitations commonly used acrylate formulations. Since free-radical polymerization is not...
Complex oxide films stabilized by epitaxial growth can exhibit large populations of point defects which have important effects on their properties. The site occupancy pulsed laser-deposited terbium iron garnet (TbIG) with excess (Tb) is analyzed, in the terbium:iron (Tb:Fe)ratio 0.86 compared to stoichiometric value 0.6. magnetic properties TbIG are sensitive occupancy, exhibiting a higher compensation temperature (by 90 K) and lower Curie 40 than bulk Tb3 Fe5 O12 garnet. Data derived from...
Antiferromagnets have recently been propelled to the forefront of spintronics by their high potential for revolutionizing memory technologies. For this, understanding formation and driving mechanisms domain structure is paramount. In this work, we investigate in a thin-film canted antiferromagnet $\alpha$-Fe$_2$O$_3$. We find that internal destressing fields domains do not follow crystal symmetry $\alpha$-Fe$_2$O$_3$, but fluctuate due substrate clamping. This leads an overall isotropic...
Abstract Despite the rampant discovery of tunable magnetic properties using magneto‐ionic gating, e.g., anisotropy, exchange bias, and interactions, there are few studies that give a quantitative understanding reversible irreversible effects ionic infiltration. In this study, in situ vibrating sample magnetometry, superconducting quantum interference device X‐ray circular dichroism (XMCD) reveal control magnetization, proximity‐effects, spin, orbital angular momenta. Pd/Co/Pd trilayers,...
Abstract Complex oxides offer rich magnetic and electronic behavior intimately tied to the composition arrangement of cations within structure. Rare earth iron garnet films exhibit an anisotropy along growth direction which has long been theorized originate from ordering different on same crystallographic site. Here, we directly demonstrate three-dimensional rare ions in pulsed laser deposited (Eu x Tm 1-x ) 3 Fe 5 O 12 thin using both atomically-resolved elemental mapping visualize cation...
Abstract This work characterizes the structural, magnetic, and ferroelectric properties of epitaxial LuFeO 3 orthoferrite thin films with different Lu/Fe ratios. are grown by pulsed laser deposition on SrTiO substrates ratio ranging from 0.6 to 1.5. is antiferromagnetic a weak canted moment perpendicular film plane. Piezoresponse force microscopy imaging switching spectroscopy reveal room temperature ferroelectricity in Lu‐rich Fe‐rich films, whereas stoichiometric shows little polarization....
Objectives: In this study, we aimed to explore current physician assistant (PA) student and alumni attitudes, knowledge, perceptions towards recreational medical marijuana. Methods: We conducted a cross-sectional study with PA students (N = 62) from mid-sized university in the southeastern United States. used an online QualtricsTM survey of 40 questions pertaining both Results: When asked about counseling patients on marijuana only 50.8% felt comfortable. Even fewer were comfortable...
Oxide superlattices reveal a rich array of emergent properties derived from the composition modulation and resulting lattice distortion, charge transfer, symmetry reduction that occur at interfaces between layers. The great majority studies have focused on perovskite oxide superlattices, revealing, for example, appearance an interfacial 2D electron gas, magnetic moment, or improper ferroelectric polarization is not present in parent phases. Garnets possess greater structural complexity than...
We demonstrate a thin film ferrimagnet, 48-nm-thick (110)-oriented europium iron garnet, in which the easy plane is perpendicular to and hard axis lies plane. describe individual contributions magnetic anisotropy tuning parameters that enable easy-plane landscape be engineered. The characterized using spin-Hall magnetoresistance measurements. cubic magnetocrystalline anisotropy, often neglected for garnets, shown influence magnetization reversal within
Volumetric additive manufacturing (VAM) is an emerging approach for photopolymer-based 3D printing that produces complex structures in a single step, rather than from layer-by-layer assembly. In article number 2003376, Maxim Shusteff and co-workers adapt thiol-ene resins VAM by incorporating threshold response using polymerization inhibitor. Due do the uniform network formation, broad range of mechanical properties can be accessed.
Magnetic properties of rare-earth iron garnets can be dramatically changed by mixing different ions on a single site in the crystal structure. We observe and characterize ordering due to site-preference mixed europium-thulium garnet (EuTmIG) thin films grown pulsed laser deposition (PLD) (111) gadolinium gallium (GGG). EuTmIG with increasing Eu fraction (x) show linear strain variation from tensile compressive lattice mismatch GGG. In addition, large anisotropy form K <inf...
Antiferromagnets have recently been propelled to the forefront of spintronics by their high potential for revolutionizing memory technologies. For this, understanding formation and driving mechanisms domain structure is paramount. In this work, we investigate in a thin-film canted antiferromagnet $α$-Fe$_2$O$_3$. We find that internal destressing fields domains do not follow crystal symmetry $α$-Fe$_2$O$_3$, but fluctuate due substrate clamping. This leads an overall isotropic distribution...