Magnetization process of the layered diluted ferromagnetic semiconductor (Ba,K)(Zn,Mn)As studied by X-ray magnetic circular dichroism

Wan, Y.*; Shibata, Goro; Takeda, Yukiharu*; Okane, Tetsuo; Saito, Yuji; Yamagami, Hiroshi; Fujimori, Atsushi*; 10 of others*

Physical Review Materials (Internet), 10(5), p.054402_1 - 054402_8, 2026/05

https://doi.org/10.1103/69sm-fz7z

Highly water-permeable WO-containing porous hydrogel via freeze-crosslinking for efficiency and salt-robust dye Decolorization

Sugita, Tsuyoshi; Ueda, Yuki; Nakabe, Rintaro; Mori, Masanobu*; Nankawa, Takuya; Sekine, Yurina

Journal of Photochemistry and Photobiology A; Chemistry, 473, p.116773_1 - 116773_9, 2026/04

https://doi.org/10.1016/j.jphotochem.2025.116773

We developed a WO-embedded hydrogel (WFG) by freeze-cross-linking that retained high activity even in the presence of coexisting salts. Confocal laser scanning microscope revealed interconnected channels < 200 m. ensuring good water permeability, and contrast-matching small-angle neutron scattering showed that the secondary particle size of embedded WO (~300 nm) matched that in aqueous suspension. Under visible-light irradiation, WFG decolorized indigo carmine (INC) 1.5-fold increase in rate than suspended WO and 3.7-fold increase in rate than a WO-coated glass plate. Coexisting salts (NaNO, NaCl, NaSO, NaHPO) altered the decolorization efficiency; NaNO and NaSO enhanced, whereas Cl and HPO suppressed the reaction, indicating that ionic strength and anion-species affect contact efficiency and charge transfer.

New insights into the cryogenic fracture mechanism of high-Mn austenitic steels using interrupted Charpy impact tests

Xia, B.*; Wang, H. H.*; Su, Y. H.; Xu, P. G.; Shinohara, Takenao; Wang, Y. W.*

Materials Science & Engineering A, 957, p.149940_1 - 149940_7, 2026/04

https://doi.org/10.1016/j.msea.2026.149940

Suppression of electrolytic corrosion at accelerator cooling-water facility by changing of rust inhibitors; Reduction of rust and cost

Dei, Tatsumi; Suganuma, Kazuaki; Fujirai, Kosuke; Suzuki, Katsuo; Suzuki, Hiroshi*; Nakata, Morihiro*; Hosokawa, Hideaki*; Onose, Yuichiro*; Watanabe, Yasuhiro; Shinozaki, Shinichi; et al.

JAEA-Technology 2026-003, 27 Pages, 2026/03

JAEA-Technology-2026-003.pdf:1.3MB

Accelerator cooling-water facility cannot prevent electrolytic corrosion because the systems consist of several different kinds of metals. We have confirmed that the electrolytic corrosion certainly occurs between oxygen-free copper and carbon steel, and cannot be suppressed by the rust inhibitor used so far. We have chosen a new rust inhibitor and confirmed that the new rust inhibitor can prevent the corrosion progression of carbon steel as well as oxygen-free copper. Moreover, using the new rust inhibitor brings about saving water and the cost reduction of the inhibitors.

Revisiting the role of NbO precursors on solid-state formation reactions of (KNa)NbO

Shoji, Takuma*; Nam, H.*; Ye, J.*; Ito, Daiki*; Takagi, Yuka*; Yoneda, Yasuhiro; Nagata, Hajime*

Journal of the American Ceramic Society, 109(3), p.e70657_1 - e70657_9, 2026/03

https://doi.org/10.1111/jace.70657

(K,Na)NbO (KNN)-based ceramics have been hesitant to be used in practical piezoelectric devices due to their poor chemical homogeneity, despite their excellent piezoelectric characteristics. In this study, we revealed that the role of NbO precursors varies depending on the processing approaches and is strongly correlated with the chemical homogeneity of KNN with the use of soft X-ray absorption spectroscopy. Therefore, the choice of NbO precursor is a dominant factor in the fabrication of KNN.

Synthesis of high-entropy hydride from the cantor alloy (fcc-CoCrFeNiMn) at extreme conditions

Glazyrin, K.*; Spektor, K.*; Bykov, M.*; Carvalho, P. H. B.*; Dong, W.*; Krmann, F.*; Sano, Asami; Hattori, Takanori; Beyer, D. C.*; Sahlberg, M.*; et al.

Nature Communications (Internet), 17, p.2622_1 - 2622_10, 2026/03

https://doi.org/10.1038/s41467-026-70483-3

Studies of high entropy materials contribute to various fields of science and reveal ever more exciting properties of applied interest. Here, we perform a study of the resistance of a Cantor alloy (CoCrFeNiMn) to hydrogen through high-pressure experiments at elevated temperatures by X-ray and neutron time-of-flight experiments and ab initio calculations. We report formation of an fcc hydride based on the Cantor alloy composition. We also provide its characterization, including an estimate of hydrogen content. These findings contribute to the growing body of knowledge on the complex chemistry of high-entropy alloys and high-entropy-hydrides.

Coupled dimerized alternating-bond quantum spin chains in the distorted honeycomb-lattice magnet CuSbO

Piyakulworawat, C.*; Morita, Katsuhiro*; Fukumoto, Yoshiyuki*; Hsieh, W.-Y.*; Chen, W.-T.*; Nakajima, Kenji; Kawamura, Seiko; Zhao, Y.*; Wannapaiboon, S.*; Piyawongwatthana, P.; et al.

Physical Review Research (Internet), 8(1), p.013247_1 - 013247_16, 2026/03

https://doi.org/10.1103/vdgg-d128

We analyze powder-averaged inelastic neutron scattering and magnetization data for the distorted honeycomb compound CuSbO using a first-order dimer expansion calculation and quantum Monte Carlo simulations. We show that, in contrast to the previously proposed honeycomb lattice model, CuSbO accommodates interacting dimerized spin chains with alternating ferromagnetic-antiferromagnetic couplings along the chain. Moreover, unlike the typical couplings observed in other Cu-based distorted honeycomb magnets, the spin chains in CuSbO primarily couple through an antiferromagnetic coupling that arises between the honeycomb layers, rather than the expected interchain coupling in the layers. This finding reveals a different magnetic coupling scheme for CuSbO. In addition, utilizing X-ray spectroscopy and transmission electron microscopy, we also refine the crystal structure and stacking-fault model of the compound.

Role for JRR-3

Motokawa, Ryuhei

Shiki, 70, P. 1, 2026/03

no abstracts in English

Measuring the moistness of dried sweet potatoes; Analyzing food microstructure using neutron beams

Nakagawa, Hiroshi

CROSS T&T, 82, p.13 - 15, 2026/02

The need to scientifically understand the production techniques of dried sweet potatoes -traditionally developed through experience and intuition- and to ensure consistent product quality is increasing. Achieving both a soft texture and long-term shelf stability remains particularly challenging, and striking this balance lies at the heart of quality design. Importantly, this distinctive softness does not simply result from high moisture content. In this study, we employ neutron scattering, a materials science based analytical technique, to elucidate the molecular nature of moisture and to clarify the fundamental factors governing food texture. Building on insights from previous food science research, this paper explores the relationship between the microstructure of dried sweet potatoes and their textural properties, and highlights new perspectives in food research enabled by neutron-based approaches.

Facile preparation of antiviral grafted fabrics based on silver-immobilized phosphate groups and evaluation of COVID-19 infections

Matsumura, Daiju; Tsuji, Takuya; Seko, Noriaki*; 5 of others*

Journal of Radioanalytical and Nuclear Chemistry, 335(2), p.1543 - 1552, 2026/02

https://doi.org/10.1007/s10967-025-10608-y