Exploiting Geometric Frustration in Coupled von Mises Trusses to Program Multifunctional Mechanical Metamaterials
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Engineering Materials"
DOI: 10.1002/adem.202402006
Abstract: Multistable mechanical metamaterials are an emerging class of materials whose intricate internal structure can be engineered to program mechanical properties and promote reversible transitions between multiple stable states of energy. In this work, the design… read more here.
Keywords: stable states; mechanical metamaterials; geometric frustration; von mises ... See more keywords
Anisotropic Morphing in Bistable Kirigami through Symmetry Breaking and Geometric Frustration
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Materials"
DOI: 10.1002/adma.202313198
Abstract: Shape morphing in bistable kirigami enables remarkable functionalities appealing to a diverse range of applications across the spectrum of length scale. At the core of their shape shifting lies the architecture of their repeating unit,… read more here.
Keywords: kirigami; symmetry breaking; geometric frustration; bistable kirigami ... See more keywords
Jahn-Teller and geometric frustration effects on the structural and magnetic ground states of substituted spinels (Ni,A)Cr2O4 (A = Mn/Cu)
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2020.154139
Abstract: Abstract Comparative study of the effects of substitution (25%) of Jahn-Teller (JT) active Cu2+ and non JT active Mn2+ cations, at the Ni2+ site, on the geometric frustration (GF) and cooperative JT distortion (CJTD) in… read more here.
Keywords: teller geometric; geometric frustration; jahn teller; frustration ... See more keywords
Adaptive Self-Assembly in 2D Nanoconfined Spaces: Dealing with Geometric Frustration
Sign Up to like & getrecommendations! Published in 2019 at "Chemistry of Materials"
DOI: 10.1021/acs.chemmater.9b01251
Abstract: The impact of lateral confinement on the 2D self-assembly of a normal alkane is investigated via scanning tunneling microscopy-based nanoshaving on covalently modified graphite surfaces. Physical constraints placed on the confined assemblies lead to geometric… read more here.
Keywords: geometric frustration; self assembly; adaptive self; assembly nanoconfined ... See more keywords
Is Geometric Frustration-Induced Disorder a Recipe for High Ionic Conductivity?
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.7b00502
Abstract: Ionic conductivity is ubiquitous to many industrially important applications such as fuel cells, batteries, sensors, and catalysis. Tunable conductivity in these systems is therefore key to their commercial viability. Here, we show that geometric frustration… read more here.
Keywords: ionic conductivity; frustration induced; disorder; geometric frustration ... See more keywords
Universal geometric frustration in pyrochlores
Sign Up to like & getrecommendations! Published in 2018 at "Nature Communications"
DOI: 10.1038/s41467-018-05033-7
Abstract: Materials with the pyrochlore/fluorite structure have diverse technological applications, from magnetism to nuclear waste disposal. Here we report the observation of structural instability present in the pyrochlores A2Zr2O6Oʹ (A = Pr, La) and Yb2Ti2O6Oʹ, that exists despite… read more here.
Keywords: universal geometric; order; geometric frustration; structure ... See more keywords
Switchable geometric frustration in an artificial-spin-ice–superconductor heterosystem
Sign Up to like & getrecommendations! Published in 2018 at "Nature Nanotechnology"
DOI: 10.1038/s41565-018-0162-7
Abstract: Geometric frustration emerges when local interaction energies in an ordered lattice structure cannot be simultaneously minimized, resulting in a large number of degenerate states. The numerous degenerate configurations may lead to practical applications in microelectronics1,… read more here.
Keywords: spin ice; artificial spin; geometric frustration;
Dominant 1/3-filling correlated insulator states and orbital geometric frustration in twisted bilayer graphene
Sign Up to like & getrecommendations! Published in 2024 at "Nature Physics"
DOI: 10.1038/s41567-024-02546-5
Abstract: Geometric frustration occurs in a lattice system when not all the interactions can be satisfied simultaneously. The simplest example is antiferromagnetically coupled spins on a triangular lattice. Frustrated systems are characterized by having many nearly… read more here.
Keywords: orbital geometric; geometric frustration; bilayer graphene; twisted bilayer ... See more keywords
Geometric frustration in ordered lattices of plasmonic nanoelements
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-40117-4
Abstract: Inspired by geometrically frustrated magnetic systems, we present the optical response of three cases of hexagonal lattices of plasmonic nanoelements. All of them were designed using a metal-insulator-metal configuration to enhance absorption of light, with… read more here.
Keywords: frustration ordered; geometric frustration; ordered lattices; lattices plasmonic ... See more keywords
Explicit demonstration of geometric frustration in chiral liquid crystals.
Sign Up to like & getrecommendations! Published in 2022 at "Soft matter"
DOI: 10.1039/d2sm01420c
Abstract: Many solid materials and liquid crystals exhibit geometric frustration, meaning that they have an ideal local structure that cannot fill up space. For that reason, the global phase must be a compromise between the ideal… read more here.
Keywords: twist; geometric frustration; structure; liquid crystals ... See more keywords
Relieving nematic geometric frustration in the plane
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/acd890
Abstract: Frustration in nematic-ordered media (endowed with a director field) is treated in a purely geometric fashion in a flat, two-dimensional space. We recall the definition of quasi-uniform distortions and envision these as viable ways to… read more here.
Keywords: frustration; relieving nematic; nematic geometric; plane ... See more keywords