Researchers have explored the phenomenon of shape coexistence in nuclei surrounding ¹⁷²Hg, revealing the interplay between nuclear pairing interactions and complex shape dynamics. The study provides theoretical insights into shape isomers and structural evolution and refines models of nuclear behavior in mid-shell regions.

In recent years, low-dimensional materials have become a hot spot for nonlinear optics research due to their unique electronic structure and optical properties. However, how to achieve more significant nonlinear optical responses in low-dimensional materials and actively modulate their properties remains an important challenge in current research. To this end, researchers have explored various strategies such as electric field modulation, excitation resonance and heterostructure construction to enhance the ultrafast nonlinear optical response of materials.

Polarons, as quasiparticles formed by the strong interaction between carriers and lattice vibrations, can significantly modulate the band gap, carrier mobility, diffusion, composite and other properties of functional materials, which has become a research hot research topic in recent years. Soft lattice lead halide chalcogenides exhibit strong electron-phonon coupling effects due to their unique polarity and dynamic disorder, which provides an ideal environment for the formation of this polarons. Polarons can also achieve the modulation of the optical properties of materials, such as the formation of polarons can promote the efficient upconversion of photons. However, the direct correlation between polaronic states and nonlinear optical response of low-dimensional has not been fully investigated.

The multiband superconductor offers a unique venue for investigating the interplay between Cooper pairing and inter-band interactions. Here we report the emergence of two-band superconductivity in hybridized superlattice Na (1,3-diaminopropane)ZrNCl. The intercalation of organic molecules and Na ions into the interlayer modulates the electronic structure near the Fermi surface, and promotes the emergence of intrinsic superconductivity with onset transition temperature T_c = 15K. Systematical investigations of upper critical field H_c2 reveals that temperature dependence of H_c2 can be well-described by two-band theory, yielding the out-of-plane and in-plane H_c2 values of 2.9 T and 11.5 T, respectively. Furthermore, analysis of the reversible magnetization data confirms the intrinsic two-band characteristics, which deviate significantly from the predictions of the single-band Ginzburg–Landau(GL)model. Meanwhile, the superconducting state exhibits a two-fold rotational symmetry under in-plane magnetic fields, contrasting with the three-fold symmetric ZrNCl lattice. Angle-dependent H_c2 behavior aligns with the three-dimensional (3D) anisotropic GL model. These findings establish the intercalated rhombohedral ZrNCl as a compelling platform for exploring multiband superconductivity. One-Sentence Summary: Discovery of two-band superconductivity in the intercalated rhombohedral ZrNCl system, which was supported by the upper critical field and reversible magnetization experiments.

Published 23 April, 2025

Researchers have synthesized a new allohexaploid wheat, Triticum kiharae, and demonstrated a feasible route to simultaneously introgress standing genetic variations from both the Timopheevii wheat (T. timopheevii) and goat-grass (Aegilops tauschii), as well as heritable de novo variations that have arisen in T. kiharae, into common wheat.