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Quantum Buckling in Metal-Organic Framework Materials
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. Stockholm Univ, S-10691 Stockholm, Sweden..ORCID iD: 0000-0001-9285-0165
2021 (English)In: Nano Letters, ISSN 1530-6984, E-ISSN 1530-6992, Vol. 21, no 24, p. 10341-10345Article in journal (Refereed) Published
Abstract [en]

Metal-organic frameworks are porous materials composed of metal ions or clusters coordinated by organic molecules. As a response to applied uniaxial pressure, molecules with a straight shape in the framework start to buckle. At sufficiently low temperatures, this buckling has a quantum nature described by a superposition of degenerate buckling states. Buckling states of adjacent molecules couple in a transverse field Ising type behavior. Based on the example of the metal organic framework topology MOF-5, we derived the phase diagram under applied strain, showing a normal phase, a parabuckling phase, and a ferrobuckling phase. At zero temperature, quantum phase transitions between the three phases can be induced by strain. This novel type of order opens a new path toward strain induced quantum phases.

Place, publisher, year, edition, pages
American Chemical Society (ACS) , 2021. Vol. 21, no 24, p. 10341-10345
Keywords [en]
Phase transition, Quantum materials, Metal-organic frameworks, Quantum buckling, Bucklon, Transverse field Ising model
National Category
Condensed Matter Physics Other Physics Topics
Identifiers
URN: urn:nbn:se:kth:diva-309787DOI: 10.1021/acs.nanolett.1c03579ISI: 000758046000026PubMedID: 34881896Scopus ID: 2-s2.0-85121210958OAI: oai:DiVA.org:kth-309787DiVA, id: diva2:1644436
Note

QC 20220314

Available from: 2022-03-14 Created: 2022-03-14 Last updated: 2022-06-25Bibliographically approved

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Geilhufe, Matthias

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