A semiconducting layered metal-organic framework magnet

Yang C, Dong R, Wang M, St Petkow P, Zhang Z, Wang M, Han P, Ballabio M, Braeuninger SA, Liao Z, Zhang J, Schwotzer F, Zschech E, Klauss HH, Canovas E, Kaskel S, Bonn M, Zhou S, Heine T, Feng X (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Nature Communications Nature Publishing Group: Nature Communications

Book Volume: 10

Article Number: 3260

Journal Issue: 1

DOI: 10.1038/s41467-019-11267-w

Abstract

The realization of ferromagnetism in semiconductors is an attractive avenue for the development of spintronic applications. Here, we report a semiconducting layered metal-organic framework (MOF), namely K3Fe2[(2,3,9,10,16,17,23,24-octahydroxy phthalocyaninato)Fe] (K3Fe2[PcFe-O8]) with spontaneous magnetization. This layered MOF features in-plane full π-d conjugation and exhibits semiconducting behavior with a room temperature carrier mobility of 15 ± 2 cm2 V−1 s−1 as determined by time-resolved Terahertz spectroscopy. Magnetization experiments and 57Fe Mössbauer spectroscopy demonstrate the presence of long-range magnetic correlations in K3Fe2[PcFe-O8] arising from the magnetic coupling between iron centers via delocalized π electrons. The sample exhibits superparamagnetic features due to a distribution of crystal size and possesses magnetic hysteresis up to 350 K. Our work sets the stage for the development of spintronic materials exploiting magnetic MOF semiconductors.

Involved external institutions

Technische Universität Dresden DE Germany (DE) Helmholtz-Zentrum Dresden-Rossendorf (HZDR) DE Germany (DE) Chinese Academy of Sciences (CAS) / 中国科学院 CN China (CN) Fraunhofer-Institut für Keramische Technologien und Systeme (IKTS) DE Germany (DE) Max-Planck-Institut für Polymerforschung (MPI-P) / Max Planck Institute for Polymer Research DE Germany (DE) Sofia University "St. Kliment Ohridski" / Софийски университет "Св. Климент Охридски" BG Bulgaria (BG)

How to cite

APA:

Yang, C., Dong, R., Wang, M., St Petkow, P., Zhang, Z., Wang, M.,... Feng, X. (2019). A semiconducting layered metal-organic framework magnet. Nature Communications, 10(1). https://doi.org/10.1038/s41467-019-11267-w

MLA:

Yang, Chongqing, et al. "A semiconducting layered metal-organic framework magnet." Nature Communications 10.1 (2019).

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