A cation-exchange approach to tunable magnetic intercalation superlattices

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43932245" target="_blank" >RIV/60461373:22310/25:43932245 - isvavai.cz</a>

Result on the web

<a href="https://www.nature.com/articles/s41586-025-09147-z" target="_blank" >https://www.nature.com/articles/s41586-025-09147-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41586-025-09147-z" target="_blank" >10.1038/s41586-025-09147-z</a>

Result language

angličtina

Original language name

A cation-exchange approach to tunable magnetic intercalation superlattices

Original language description

Tailoring magnetic ordering in solid-state materials is essential for emerging spintronics1,2. However, substitutional lattice doping in magnetic semiconductors is often constrained by the low solubility of magnetic elements3, 4-5, limiting the maximum achievable doping concentration (for example, less than 5%) and ferromagnetic ordering temperature6. The intercalation of magnetic elements in layered two-dimensional atomic crystals (2DACs) without breaking in-plane covalent bonds offers an alternative approach to incorporate a much higher concentration of magnetic atoms (for example, up to 50%) beyond the typical solubility limit. However, commonly used chemical and electrochemical intercalation methods are largely confined to a few isolated examples so far. Here we report a general two-step intercalation and cation-exchange strategy to produce a library of highly ordered magnetic intercalation superlattices (MISLs) with tunable magnetic ordering. Monovalent transition-metal cations Cu+ and Ag+, divalent magnetic cations Mn2+, Fe2+, Co2+ and Ni2+, and trivalent rare-earth cations Eu3+ and Gd3+ have been successfully incorporated into group-VIB 2DACs, including MoS2, MoSe2, MoTe2, WS2, WSe2 and WTe2, and group-IVB, -VB, -IIIA, -IVA and -VA 2DACs, including TiS2, NbS2, NbSe2, TaS2, In2Se3, SnSe2, Bi2Se3 and Bi2Te3. We show that these MISLs can be prepared with tunable concentrations of magnetic intercalants, enabling tailored magnetic ordering across a diverse array of functional 2DACs, including semiconductors, topological insulators, and superconductors. This work establishes a versatile material platform for both fundamental investigations and spintronics applications.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10402 - Inorganic and nuclear chemistry

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

NATURE

ISSN

0028-0836

e-ISSN

1476-4687

Volume of the periodical

643

Issue of the periodical within the volume

8072

Country of publishing house

CH - SWITZERLAND

Number of pages

19

Pages from-to

683-690

UT code for WoS article

001516593000001

EID of the result in the Scopus database

2-s2.0-105009010440