Expansion in width for domain walls in nematic liquid crystals in an external magnetic field.

{
  "study_type": "other",
  "exposure": {
    "band": null,
    "source": "external magnetic field",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Domain wall width expansion",
    "Director field (approximate form)",
    "Magnetic coherence length (second-order approximation)"
  ],
  "main_findings": "An improved expansion in width is applied to curved domain walls in uniaxial nematic liquid crystals under an external magnetic field, focusing on the case of equal elastic constants. The authors obtain an approximate form of the director field up to second order in the magnetic coherence length.",
  "effect_direction": "unclear",
  "limitations": [
    "No biological/health outcomes described (materials/physics focus).",
    "No quantitative exposure parameters (e.g., field strength, frequency) reported in the abstract.",
    "Approximation described only up to second order in magnetic coherence length; validity range not stated in the abstract."
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "nematic liquid crystals",
    "domain walls",
    "external magnetic field",
    "director field",
    "elastic constants",
    "magnetic coherence length"
  ],
  "suggested_hubs": []
}