Spontaneous Supercrystal Formation During a Strain-Engineered Metal-Insulator Transition

Bibliographische Detailangaben
Veröffentlicht in:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 32 vom: 02. Aug., Seite e2403873
1. Verfasser:	Gorobtsov, Oleg Yu (VerfasserIn)
Weitere Verfasser:	Miao, Ludi, Shao, Ziming, Tan, Yueze, Schnitzer, Noah, Goodge, Berit Hansen, Ruf, Jacob, Weinstock, Daniel, Cherukara, Mathew, Holt, Martin Victor, Nair, Hari, Chen, Long-Qing, Kourkoutis, Lena Fitting, Schlom, Darrell G, Shen, Kyle M, Singer, Andrej
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2024
Zugriff auf das übergeordnete Werk:	Advanced materials (Deerfield Beach, Fla.)
Schlagworte:	Journal Article coherent X‐ray diffraction nanomaterials quantum materials supercrystals thin films

Beschreibung
Zusammenfassung:	© 2024 Wiley‐VCH GmbH. Mott metal-insulator transitions possess electronic, magnetic, and structural degrees of freedom promising next-generation energy-efficient electronics. A previously unknown, hierarchically ordered, and anisotropic supercrystal state is reported and its intrinsic formation characterized in-situ during a Mott transition in a Ca2RuO4 thin film. Machine learning-assisted X-ray nanodiffraction together with cryogenic electron microscopy reveal multi-scale periodic domain formation at and below the film transition temperature (TFilm ≈ 200-250 K) and a separate anisotropic spatial structure at and above TFilm. Local resistivity measurements imply an intrinsic coupling of the supercrystal orientation to the material's anisotropic conductivity. These findings add a new degree of complexity to the physical understanding of Mott transitions, opening opportunities for designing materials with tunable electronic properties
Beschreibung:	Date Revised 08.08.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.202403873