Chemistry

Thin film

Materials science

Optoelectronics

Composite material

Physics

Electrode

Ferromagnetism

Nanotechnology

Organic chemistry

Magnetoresistance

Spintronics

Quantum mechanics

Spin valve

Magnetic field

Adsorption

Metal-organic framework

Electrical conductor

Condensed matter physics

Physical chemistry

Layer (electronics)

Angewandte Chemie International Edition

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, Cu3 (HHTP)2 , (HHTP: 2,3,6,7,10,11-hexahydroxytriphenylene), with tunable thicknesses on the La0.67 Sr0.33 MnO3 (LSMO) ferromagnetic electrode. The magnetoresistance (MR) of the LSMO/Cu3 (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.

2D Semiconducting Metal–Organic Framework Thin Films for Organic Spin Valves