We report the first numerical prediction of a "spin microemulsion"-a phase with undulating spin domains resembling classical bicontinuous oil-water-surfactant emulsions-in two-dimensional systems of spinor Bose-Einstein condensates with isotropic Rashba spin-orbit coupling. Using field-theoretic numerical simulations, we investigated the melting of a low-temperature stripe phase with supersolid character and find that the stripes lose their superfluidity at elevated temperature and undergo a Kosterlitz-Thouless-like transition into a spin microemulsion. Momentum distribution calculations highlight a thermally broadened occupation of the Rashba circle of low-energy states with macroscopic and isotropic occupation around the ring. We provide a finite-temperature phase diagram that positions the emulsion as an intermediate, structured isotropic phase with residual quantum character before transitioning at higher temperature into a structureless normal fluid.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.131.173403 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effect of ionic liquid as a surfactant in hydroxyapatite coatings for improvement corrosion resistance of Ti-6Al-4V substrates for implant applications.
Heliyon
December 2024
Department of Condensed Matter Physics, Faculty of Physics, University of Tabriz, 29 Bahman Blvd., Tabriz, Iran.
Research on hydroxyapatite (HAP) coatings for bone tissue applications has been investigated for decades due to their significant osteoconductive and bioactivity properties. HAP closely resembles the mineral component of human bone, making it ideal for biomedical applications such as implants. This study investigates the synthesis of hydroxyapatite nanoparticles (HAP-NPs) via the microemulsion method, which is essential for creating HAP coatings on the Ti-6Al-4V substrate.
View Article and Find Full Text PDFConfined bicontinuous microemulsions: nanoscale dynamics of the surfactant film.
Soft Matter
November 2024
Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany.
A confined bicontinuous CE-DO--octane microemulsion is studied using neutron spin echo spectroscopy (NSE). Controlled pore glasses serve as confining matrices with pore diameters ranging from 24 to 112 nm. Firstly, the microemulsion in bulk is investigated by NSE and dynamic light scattering, which allows the determination of the unperturbed collective dynamics as well as the observation of the undulation of the surfactant film.
View Article and Find Full Text PDFCore-shell model of the clusters of CPEB4 isoforms preceding liquid-liquid phase separation.
Biophys J
August 2024
Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot, Israel. Electronic address:
Protein solutions can undergo liquid-liquid phase separation (LLPS), where a dispersed phase with a low protein concentration coexists with coacervates with a high protein concentration. We focus on the low complexity N-terminal domain of cytoplasmic polyadenylation element binding-4 protein, CPEB4, and its isoform depleted of the Exon4, CPEB4Δ4. They both exhibit LLPS, but in contrast to most systems undergoing LLPS, the single-phase regime preceding LLPS consists mainly of soluble protein clusters.
View Article and Find Full Text PDFHighly efficient visible-light driven dye degradation via 0D BiVO nanoparticles/2D BiOCl nanosheets p-n heterojunctions.
Chemosphere
April 2024
State Key Laboratory of Urban Water Resource and Environment, Shenzhen Key Laboratory of Organic Pollution Prevention and Control, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen, 518055, PR China; Institute of Hydrogen and Fuel Cell, Harbin Institute of Technology Shenzhen, Shenzhen, 518055, PR China; International Joint Research Center for Persistent Toxic Substances, Harbin Institute of Technology Shenzhen, Shenzhen, 518055, PR China. Electronic address:
Article Synopsis
- * A unique 0D-2D hierarchical nanostructured heterojunction was developed by growing BiOCl (p-type) nanosheets on BiVO (n-type) nanoparticles, leading to a significant increase in the degradation efficiency of rhodamine B dye from about 32% to 99.5% in just 55 minutes.
- * The findings highlight that the p-n heterojunction design improves the separation of photogenerated carriers, with ·O and h species identified as key active agents in the degradation process, suggesting a promising avenue for
Emergence of a Spin Microemulsion in Spin-Orbit Coupled Bose-Einstein Condensates.
Phys Rev Lett
October 2023
Department of Chemical Engineering, University of California, Santa Barbara, California 93106, USA.
We report the first numerical prediction of a "spin microemulsion"-a phase with undulating spin domains resembling classical bicontinuous oil-water-surfactant emulsions-in two-dimensional systems of spinor Bose-Einstein condensates with isotropic Rashba spin-orbit coupling. Using field-theoretic numerical simulations, we investigated the melting of a low-temperature stripe phase with supersolid character and find that the stripes lose their superfluidity at elevated temperature and undergo a Kosterlitz-Thouless-like transition into a spin microemulsion. Momentum distribution calculations highlight a thermally broadened occupation of the Rashba circle of low-energy states with macroscopic and isotropic occupation around the ring.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!