High-spin states in 135Nd were populated with the 110Pd(30Si,5n)135Nd reaction at a 30Si bombarding energy of 133 MeV. Two DeltaI=1 bands with close excitation energies and the same parity were observed. These bands are directly linked by DeltaI=1 and DeltaI=2 transitions. The chiral nature of these two bands is confirmed by comparison with three-dimensional tilted axis cranking calculations. This is the first observation of a three-quasiparticle chiral structure and establishes the primarily geometric nature of this phenomenon.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.91.132501 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Spontaneous Formation of Single-Crystalline Spherulites in a Chiral 2D Hybrid Perovskite.
J Am Chem Soc
January 2025
Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States.
In two-dimensional (2D) chiral metal-halide perovskites (MHPs), chiral organic spacers induce structural chirality and chiroptical properties in the metal-halide sublattice. This structural chirality enables reversible crystalline-glass phase transitions in (-NEA)PbBr, a prototypical chiral 2D MHP where NEA represents 1-(1-naphthyl)ethylammonium. Here, we investigate two distinct spherulite states of (-NEA)PbBr, exhibiting either radial-like or stripe-like banded patterns depending on the annealing conditions of the amorphous film.
View Article and Find Full Text PDFElectrically Modulated Multilevel Optical Chirality in GdFeCo Thin Films.
ACS Appl Electron Mater
January 2025
Department of Applied Physics, National Pingtung University, No. 4-18, Minsheng Road, 90044 Pingtung, Taiwan.
This study introduces a simple approach to dynamically control multilevel optical ellipticity in ferrimagnetic GdFeCo alloys by switching the spin orientation through Joule heating induced by electrical current, with the assistance of a low magnetic field of 3.5 mT. It is demonstrated that selecting specific compositions of Gd (FeCo) alloys, with magnetic compensation temperatures near or above room temperature, allows for significant manipulation of the circular dichroism (CD) effect.
View Article and Find Full Text PDFA two-dimensional liquid chromatography approach for simultaneous separation and quantification of structural and chiral amino acids in oolong tea.
Food Chem
January 2025
Mane SEA PTE LTD, 3 Biopolis Drive, #07-17/18/19 Synapse, 138623, Singapore. Electronic address:
Oolong tea contains diverse isomers, such as amino acids. D-amino acids, compared with their L-enantiomers, exhibit distinct properties, influencing both the flavor and bioactivity of the tea. However, the analysis of these isomers remains challenging, especially the simultaneous determination of structural and chiral isomers.
View Article and Find Full Text PDFUltrasound-Mediated Piezoelectric Microneedles Regulating Macrophage Polarization and Remodeling Pathological Microenvironment for Lymphedema Improvement.
ACS Nano
January 2025
Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China.
Lymphedema, a severe and complex inflammatory disease caused by lymphatic system insufficiency and impeded lymphatic drainage that causes an enormous physical and psychological burden on patients and may even lead to death, has long been a challenging issue in the medical field. Clinically, conventional approaches including surgical treatment and conservative treatment have been employed for lymphedema therapy, but their curative effect is still unsatisfactory because of high operational difficulty, high cost, and long-term reliance. In this study, a novel kind of piezoelectric microneedle driven by ultrasound (US) is proposed to regulate macrophage polarization and remodel the pathological inflammatory microenvironment in a noninvasive manner, thereby promoting lymphatic regeneration and improving lymphedema.
View Article and Find Full Text PDFViedma deracemization mechanisms in self-assembly processes.
Phys Chem Chem Phys
January 2025
Laboratoire Softmat, UMR au CNRS no 5623, Université Paul Sabatier, F-31062 Toulouse, France.
Simulations on an ODE-based model shows that there are many common points between Viedma deracemization and chiral self-assemblies of achiral building blocks towards chiral nanoparticles. Both systems occur in a closed system with energy exchange but no matter exchange with the surroundings and show parallel reversible growth mechanisms which coexist with an irreversible cluster breaking (grinding). The various mechanisms of growth give rise to the formation of polymerization/depolymerization cycles while the consecutive transformation of achiral monomer into chiral cluster results into an indirect enantioselective autocatalysis.
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!