Content of TOPICAL REVIEW — Structures and properties of materials under high pressure in our journal

Published in last 1 year |  In last 2 years |  In last 3 years |  All Please wait a minute... For selected: Download citations EndNote Ris BibTeX Toggle thumbnails Select Bulk modulus of molecular crystals Xudong Jiang(江旭东), Yajie Wang(汪雅洁), Kuo Li(李阔), and Haiyan Zheng(郑海燕) Chin. Phys. B, 2025, 34 (6): 066201.   DOI: 10.1088/1674-1056/adca1a Abstract （259）   HTML （2）    PDF （780KB）（130）       Knowledge map    Bulk modulus is a constant that measures the incompressibility of materials, which can be obtained in high pressure experiment by fitting the equations of state (EOS), like third-order Birch-Murnaghan EOS (BM EOS) and Vinet EOS. Bulk modulus reflects the intermolecular interaction inside molecular crystals, making it useful for researchers to design novel high pressure materials. This review systematically examines bulk moduli of various molecular crystals, including rare-gas solids, di-atom and triplet-atom molecules, saturated organic molecules, and aromatic organic crystals. Comparisons with ionic crystals are presented, along with an analysis of connections between bulk modulus and crystal structures. Select Iron nitrides: High-pressure synthesis, nitrogen disordering and local magnetic moment Yu Tao(陶雨) and Li Lei(雷力) Chin. Phys. B, 2025, 34 (6): 068301.   DOI: 10.1088/1674-1056/adca1c Abstract （250）   HTML （0）    PDF （1448KB）（89）       Knowledge map    Iron nitride (Fe$_{x}$N$_{y}$) is a promising candidate for the next generation of ferromagnetic materials. However, synthesizing high-quality bulk iron nitride with tuned structure and magnetic properties remains a challenge. Currently, experimental and theoretical results regarding the magnetic property of iron nitrides remain controversial. With the recent advancements in high-pressure technology, new synthetic pathways to iron nitrides have been proposed. High-pressure synthesis technology provides multidimensional possibilities for tuning the structure and magnetic properties of iron nitrides. This review summarizes recent progress in high-pressure synthesis of iron nitrides, especially the high-pressure solid-state metathesis reaction synthesis (HSM). We have summarized the reaction characteristics of HSM. The HSM reaction exhibits vector synthesis characteristics and promotes nitrogen disorder diffusion at high temperature. Due to this, the HSM reaction can achieve the synthesis of multinary iron-based metal nitrides and regulate the local magnetic moments. It serves as a powerful means for tuning the structure and magnetic properties of iron nitrides. Taking advantage of neutron diffraction in characterizing local magnetic moment and nitrogen disorder in iron nitrides, the relationship between iron local magnetic moment and nitrogen content has been elucidated. Moreover, the development of high-pressure in-situ imaging technology based on large-volume press allows the real-time observation of HSM reaction process. In this review, we also report our latest experiments on neutron diffraction and high-pressure in-situ image for the study of iron nitrides. Select High-pressure studies on quasi-one-dimensional systems Wenhui Liu(刘雯慧), Jiajia Feng(冯嘉嘉), Wei Zhou(周苇), Sheng Li(李升), and Zhixiang Shi(施智祥) Chin. Phys. B, 2025, 34 (8): 088104.   DOI: 10.1088/1674-1056/ade8dd Abstract （110）   HTML （2）    PDF （3857KB）（78）       Knowledge map    Quasi-one-dimensional systems provide a unique platform for the exploration of novel quantum states due to their enhanced electronic correlations, strong anisotropy, and dimensional confinement. Among various external tuning methods, physical pressure has been experimentally demonstrated to be an exceptionally potent and precise method for modulating both the structural and electronic properties of quasi-one-dimensional systems. In this review, we focus on the application of pressure to construct pressure-temperature phase diagrams of quasi-one-dimensional materials and explore the intricate relationships among quantum phenomena between superconductivity and other electronic states, such as charge density wave, topological quantum states, and antiferromagnetism. By analyzing representative examples across distinct material families, we demonstrate how pressure can be used not only to induce superconductivity but also to reveal underlying quantum critical points and drive topological phase transitions. We emphasize the significant potential of pressure as a crucial tuning parameter for revealing novel quantum phenomena and driving the progress in advanced low-dimensional quantum materials.