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2D Semiconducting Metal–Organic Framework Thin Films for Organic Spin Valves
Author(s) -
Song Xiaoyu,
Wang Xinyue,
Li Yusen,
Zheng Chengzhi,
Zhang Bowen,
Di Chongan,
Li Feng,
Jin Chao,
Mi Wenbo,
Chen Long,
Hu Wenping
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201911543
Subject(s) - spintronics , materials science , magnetoresistance , ferromagnetism , layer (electronics) , metal organic framework , electrode , thin film , nanotechnology , spin valve , electrical conductor , optoelectronics , composite material , condensed matter physics , chemistry , magnetic field , physics , organic chemistry , adsorption , quantum mechanics
2D conductive metal–organic frameworks (2D c ‐MOFs) feature promising applications as chemiresistive sensors, electrode materials, electrocatalysts, and electronic devices. However, exploration of the spin‐polarized transport in this emerging materials and development of the relevant spintronics have not yet been implemented. In this work, layer‐by‐layer assembly was applied to fabricate highly crystalline and oriented thin films of a 2D c ‐MOF, Cu 3 (HHTP) 2 , (HHTP: 2,3,6,7,10,11‐hexahydroxytriphenylene), with tunable thicknesses on the La 0.67 Sr 0.33 MnO 3 (LSMO) ferromagnetic electrode. The magnetoresistance (MR) of the LSMO/Cu 3 (HHTP) 2 /Co organic spin valves (OSVs) reaches up to 25 % at 10 K. The MR can be retained with good film thickness adaptability varied from 30 to 100 nm and also at high temperatures (up to 200 K). This work demonstrates the first potential applications of 2D c ‐MOFs in spintronics.