Quantum buckling in metal-organic framework materials

Autor:	Geilhufe, R. Matthias
Rok vydání:	2021
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Physics - Chemical Physics Physics - Computational Physics Quantum Physics
Zdroj:	Nano Letters, 2021
Druh dokumentu:	Working Paper
DOI:	10.1021/acs.nanolett.1c03579
Popis:	Metal organic frameworks are porous materials composed of metal ions or clusters coordinated by organic molecules. As a response to applied uniaxial pressure, molecules of straight shape in the framework start to buckle. Under sufficiently low temperatures, this buckling is of quantum nature, described by a superposition of degenerate buckling states. Buckling states of adjacent molecules couple in a transverse Ising type behavior. On the example of the metal organic framework topology MOF-5 we derive the phase diagram under applied strain, showing a normal, a parabuckling, 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 towards strain induced quantum phases. Comment: 5 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2112.01052 Zobrazit plný text záznamu View this record from Arxiv