Spectroscopy and microscopy of spin-sensitive rectification current induced by microwave radiation.

Nano letters · 2005 · Unclear · Insufficient evidence

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UnclearInsufficient evidencePaper 6421

Amplitude-modulated microwave radiation applied to an STM junction induced rectification in the tunneling current due to junction nonlinearity. The rectification current was proportional to the d^2I/dV^2 signal and exhibited spin sensitivity; spin flip and ma…

Study snapshot

PublicationNano letters · 2005
Study typeengineering
Reported directionUnclear
Evidence ratingInsufficient

Abstract

Amplitude-modulated microwave radiation was applied to the junction of a scanning tunneling microscope (STM). Rectification in the tunneling current was induced by the microwave because of the nonlinearity of the junction. It is shown that this rectification current is proportional to the d(2)I/dV(2) signal and exhibits spin-sensitivity. The magnetic domain at the apex of an iron-coated tip was manipulated by applying an external magnetic field. The moment of spin flip and the magnetic hysteresis were measured by changes in the spin-dependent current through the Cr(001) surface.

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AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeengineering
Effect directionunclear
PopulationNot supplied
Sample sizeNot supplied
Exposuremicrowave
Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

Amplitude-modulated microwave radiation applied to an STM junction induced rectification in the tunneling current due to junction nonlinearity. The rectification current was proportional to the d^2I/dV^2 signal and exhibited spin sensitivity; spin flip and magnetic hysteresis were measured via changes in spin-dependent current through a Cr(001) surface.

Outcomes measured

  • Rectification current in STM tunneling junction
  • Spin-sensitive signal (spin-dependent current)
  • Magnetic hysteresis
  • Spin flip moment

Limitations

  • No microwave frequency, power, or dosimetry parameters reported in the abstract
  • No biological population or health outcomes (instrumentation/physics study)
View raw extracted JSON
{
  "study_type": "engineering",
  "exposure": {
    "band": "microwave",
    "source": "other",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Rectification current in STM tunneling junction",
    "Spin-sensitive signal (spin-dependent current)",
    "Magnetic hysteresis",
    "Spin flip moment"
  ],
  "main_findings": "Amplitude-modulated microwave radiation applied to an STM junction induced rectification in the tunneling current due to junction nonlinearity. The rectification current was proportional to the d^2I/dV^2 signal and exhibited spin sensitivity; spin flip and magnetic hysteresis were measured via changes in spin-dependent current through a Cr(001) surface.",
  "effect_direction": "unclear",
  "limitations": [
    "No microwave frequency, power, or dosimetry parameters reported in the abstract",
    "No biological population or health outcomes (instrumentation/physics study)"
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "microwave radiation",
    "amplitude-modulated",
    "scanning tunneling microscope",
    "rectification",
    "tunneling current",
    "spin sensitivity",
    "magnetic hysteresis",
    "spin flip",
    "iron-coated tip",
    "Cr(001) surface"
  ],
  "suggested_hubs": []
}
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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1021/nl0522330
PubMed: 16351224

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