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Tribimaximal mixing in the S U ( 5 ) × T 13 texture
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Predictive Dirac and Majorana neutrino mass textures from S U ( 6 ) grand unified theories
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Peripheral chiral spin textures and topological Hall effect in CoSi nanomagnets
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Stable humplike Hall effect and noncoplanar spin textures in SrRuO 3 ultrathin films
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Particle-Hole Asymmetric Ferromagnetism and Spin Textures in the Triangular Hubbard-Hofstadter Model
In a lattice model subject to a perpendicular magnetic field, when the lattice constant is comparable to the magnetic length, one enters the “Hofstadter regime,” where continuum Landau levels become fractal magnetic Bloch bands. Strong mixing between bands alters the nature of the resulting quantum phases compared to the continuum limit; lattice potential, magnetic field, and Coulomb interaction must be treated on equal footing. Using determinant quantum Monte Carlo and density matrix renormalization group techniques, we study this regime numerically in the context of the Hubbard-Hofstadter model on a triangular lattice. In the field-filling phase diagram, we find a broad wedge-shaped region of ferromagnetic ground states for filling factor ν ≤ 1 , bounded below by filling factor ν = 1 and bounded above by half filling the lowest Hofstadter subband. We observe signatures of SU(2) quantum Hall ferromagnetism at filling factors ν = 1 and ν = 3 . The phases near ν = 1 are particle-hole asymmetric, and we observe a rapid decrease in ground-state spin polarization consistent with the formation of skyrmions only on the electron doped side. At large fields, above the ferromagnetic wedge, we observe a low-spin metallic region with spin correlations peaked at small momenta. We argue that the phenomenology of this region likely results from exchange interaction mixing fractal Hofstadter subbands. The phase diagram derived beyond the continuum limit points to a rich landscape to explore interaction effects in magnetic Bloch bands. Published by the American Physical Society 2024
Ferroelectric C-Axis Textured Aluminum Scandium Nitride Thin Films of 100 nm Thickness
We report on the properties of Aluminum Scandium Nitride (AlScN) thin films deposited by pulsed-DC co-sputtering. We present the impact of the nitrogen-to-argon gas ratio on the crystal growth orientation, film stress, surface roughness, scandium concentration, and deposition rate of 760-860 nm thick AlScN thin films on Ti/Pt (111). We utilize the optimized process conditions from this study to deposit thin layers of AlScN and to explore the nucleation and orientation of thin AlScN layers on Ti/Pt (111). We report on the ferroelectric properties of 100 nm thick AlScN materials.
Light Trapping Textures Designed by Electromagnetic Optimization for Subwavelength Thick Solar Cells
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Highly Textured IrMn 3 (111) Thin Films Grown by Magnetron Sputtering
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Remote Sensing Image Segmentation by Combining Spectral and Texture Features
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Environmental insights from high-resolution (SIMS) sulfur isotope analyses of sulfides in Proterozoic microbialites with diverse mat textures
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Piezoelectric K[subscript 0.5]Na[subscript 0.5]NbO[subscript 3] Ceramics Textured Using Needlelike K[subscript 0.5]Na[subscript 0.5]NbO[subscript 3] Templates
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Effect of Mechanical Constraint on Domain Reorientation in Predominantly {111}-Textured Lead Zirconate Titanate Films
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Using a mixture of hydrocolloids to mimic texture and rheological properties of a massive consumption food product
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