Scanning tunneling microscopy

{
  "id": "MLC-T-AGR-005646",
  "term": "Scanning tunneling microscopy",
  "field": "Agriculture and food",
  "definition": "A type of scanning probe microscopy in which a very sharp conducting needle is swept just a few angstroms above the surface of a sample. The tiny tunneling current that flows between the sample and the needle tip is measured, and from this are produced three-dimensional topographs. Due to the poor electron conductivity of most biological samples, thin metal coatings are deposited on the sample.",
  "synonyms": [
    "scanning tunnelling microscopy"
  ],
  "subject": "Research, Technology, Methods",
  "see_also": [
    "scanning probe microscopy"
  ],
  "references": [
    "Medical Subject Headings 2012",
    "NAL Agricultural Thesaurus and Glossary"
  ],
  "translations": {
    "es": "microscopia de efecto túnel"
  },
  "url": "https://mlchart.com/terminology/agriculture/scanning-tunneling-microscopy/"
}