Makinde, Zainab Ovan der Heijden, Nadine JClyde, DanielNam, SeongBrothers, PenelopeMalmstrom, JennyGranville, SDomigan, Laura JMcGillivray, Duncan JWilliams, David E.2023-06-080743-7463http://hdl.handle.net/1885/293400As a step toward the bottom-up construction of magnonic systems, this paper demonstrates the use of a large-amplitude surface-pressure annealing technique to generate 2-D order in a Langmuir–Blodgett monolayer of magnetic soft spheres comprising a surfactant-encapsulated polyoxometalate. The films show a distorted square lattice interpreted as due to geometric frustration caused by 2-D confinement between soft walls, one being the air interface and the other the aqueous subphase. Hysteresis and relaxation phenomena in the 2-D layers are suggested to be due to folding and time-dependent interpenetration of surfactant chains.The authors thank the MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand for providing a Ph.D. scholarship to Z.M. and postdoctoral funding for N.v.d.H.application/pdfen-AU© 2021 American Chemical Society202110.1021/acs.langmuir.1c015772022-03-27