Polymer-disordered liquid crystals: susceptibility to an electric field.

PAPER pubmed Physical review. E, Statistical, nonlinear, and soft matter physics 2013 Other Effect: unclear Evidence: Insufficient

Read original paper → DOI: 10.1103/physreve.88.062510 PMID: 24483471 Evidence Lab

Abstract

When nematic liquid crystals are embedded in random polymer networks, the disordered environment disrupts the long-range order, producing a glassy state. If an electric field is applied, it induces large and fairly temperature-independent orientational order. To understand the experiments, we simulate a liquid crystal in a disordered polymer network, visualize the domain structure, and calculate the response to a field. Furthermore, using an Imry-Ma-like approach we predict the domain size and estimate the field-induced order. The simulations and analytic results agree with each other, and suggest how the materials can be optimized for electro-optic applications.

AI evidence extraction

At a glance

Study type

Other

Effect direction

unclear

Population

—

Sample size

—

Exposure

electric field (applied)

Evidence strength

Insufficient

Confidence: 74% · Peer-reviewed: yes

Main findings

Simulations of nematic liquid crystals embedded in disordered polymer networks show that applying an electric field induces large, fairly temperature-independent orientational order. An Imry-Ma-like analytic approach predicts domain size and estimates field-induced order; simulations and analytic results agree and suggest routes to optimize materials for electro-optic applications.

Outcomes measured

orientational order
domain structure
response to electric field
domain size
field-induced order

Limitations

No electric-field parameters (e.g., strength, frequency) are provided in the abstract.
No quantitative results are reported in the abstract.
This is a materials/physics simulation and analytic study; no biological or health outcomes are addressed.

View raw extracted JSON

{
    "study_type": "other",
    "exposure": {
        "band": null,
        "source": "electric field (applied)",
        "frequency_mhz": null,
        "sar_wkg": null,
        "duration": null
    },
    "population": null,
    "sample_size": null,
    "outcomes": [
        "orientational order",
        "domain structure",
        "response to electric field",
        "domain size",
        "field-induced order"
    ],
    "main_findings": "Simulations of nematic liquid crystals embedded in disordered polymer networks show that applying an electric field induces large, fairly temperature-independent orientational order. An Imry-Ma-like analytic approach predicts domain size and estimates field-induced order; simulations and analytic results agree and suggest routes to optimize materials for electro-optic applications.",
    "effect_direction": "unclear",
    "limitations": [
        "No electric-field parameters (e.g., strength, frequency) are provided in the abstract.",
        "No quantitative results are reported in the abstract.",
        "This is a materials/physics simulation and analytic study; no biological or health outcomes are addressed."
    ],
    "evidence_strength": "insufficient",
    "confidence": 0.7399999999999999911182158029987476766109466552734375,
    "peer_reviewed_likely": "yes",
    "keywords": [
        "nematic liquid crystals",
        "polymer networks",
        "disorder",
        "glassy state",
        "electric field",
        "orientational order",
        "Imry-Ma",
        "domain size",
        "electro-optic applications",
        "simulation"
    ],
    "suggested_hubs": []
}

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AI-extracted fields are generated from the abstract/metadata and may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.

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