Skip to main content
U.S. flag

An official website of the United States government

Return to search results

Evaluation of static and dynamic magnetic properties of CoFeB versus thickness

Published by National Institute of Standards and Technology | National Institute of Standards and Technology | Catalog Last Checked: August 03, 2026 at 03:52 AM | Dataset Last Updated: July 12, 2024
The enclosed dataset includes measurements of a thickness series of CoFeB thin film samples that were deposited at the NIST Magnetic Engineering Research Facility using magnetron sputtering. The thickness-dependent magnetic properties of CoFeB have significant technological relevance for predicting the read/write energy and speed of spin-transfer-torque magnetoresistive random access memory devices, which employ a nm-thick CoFeB film as the data storage layer. Ferromagnetic resonance observations were conducted using vector network analyzer ferromagnetic resonance at fixed frequencies over a broad frequency range. The ferromagnetic resonance field and resonance linewidth versus frequency were used to determine the spectroscopic g-factor, effective magnetization Meff, Gilbert damping and the inhomogeneous linewidth broadening, respectively. This is a preliminary release and additional data will be added as this project continues

Resources

10 resources available

  • 3408_README

    TEXT/PLAIN
    Download

  • FMR Measurements/FMR fit functions

    APPLICATION/PDF
    Download

  • FMR Measurements/Header for Data

    APPLICATION/PDF
    Download

  • FMR Measurements/Header for fit results

    APPLICATION/PDF
    Download

  • FMR Measurements/Out-of-plane/20240410A_OPP

    APPLICATION/ZIP
    Download

  • FMR Measurements/Out-of-plane/20240410C_OPP

    APPLICATION/ZIP
    Download

  • FMR Measurements/Out-of-plane/20240410D_OPP

    APPLICATION/ZIP
    Download

  • FMR Measurements/Out-of-plane/20240411C_OPP

    APPLICATION/ZIP
    Download

  • FMR Measurements/Out-of-plane/20240412B_OPP

    APPLICATION/ZIP
    Download

  • FMR Measurements/Out-of-plane/20240415B_OPP

    APPLICATION/ZIP
    Download

Find Related Datasets

Search by Tags

Click any tag below to search for similar datasets

Complete Metadata
@type dcat:Dataset
accessLevel public
accrualPeriodicity irregular
bureauCode 
[
  "006:55"
]
contactPoint 
{
  "fn": "Hans Nembach",
  "hasEmail": "mailto:hans.nembach@nist.gov"
}
description The enclosed dataset includes measurements of a thickness series of CoFeB thin film samples that were deposited at the NIST Magnetic Engineering Research Facility using magnetron sputtering. The thickness-dependent magnetic properties of CoFeB have significant technological relevance for predicting the read/write energy and speed of spin-transfer-torque magnetoresistive random access memory devices, which employ a nm-thick CoFeB film as the data storage layer. Ferromagnetic resonance observations were conducted using vector network analyzer ferromagnetic resonance at fixed frequencies over a broad frequency range. The ferromagnetic resonance field and resonance linewidth versus frequency were used to determine the spectroscopic g-factor, effective magnetization Meff, Gilbert damping and the inhomogeneous linewidth broadening, respectively. This is a preliminary release and additional data will be added as this project continues
distribution 
[
  {
    "title": "3408_README",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-3408/3408_README.txt"
  },
  {
    "title": "FMR Measurements/FMR fit functions",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-3408/FMR%20Measurements%2FFMR%20fit%20functions.pdf"
  },
  {
    "title": "FMR Measurements/Header for Data",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-3408/FMR%20Measurements%2FHeader%20for%20Data.pdf"
  },
  {
    "title": "FMR Measurements/Header for fit results",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-3408/FMR%20Measurements%2FHeader%20for%20fit%20results.pdf"
  },
  {
    "title": "FMR Measurements/Out-of-plane/20240410A_OPP",
    "mediaType": "application/zip",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-3408/FMR%20Measurements%2FOut-of-plane%2F20240410A_OPP.zip"
  },
  {
    "title": "FMR Measurements/Out-of-plane/20240410C_OPP",
    "mediaType": "application/zip",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-3408/FMR%20Measurements%2FOut-of-plane%2F20240410C_OPP.zip"
  },
  {
    "title": "FMR Measurements/Out-of-plane/20240410D_OPP",
    "mediaType": "application/zip",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-3408/FMR%20Measurements%2FOut-of-plane%2F20240410D_OPP.zip"
  },
  {
    "title": "FMR Measurements/Out-of-plane/20240411C_OPP",
    "mediaType": "application/zip",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-3408/FMR%20Measurements%2FOut-of-plane%2F20240411C_OPP.zip"
  },
  {
    "title": "FMR Measurements/Out-of-plane/20240412B_OPP",
    "mediaType": "application/zip",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-3408/FMR%20Measurements%2FOut-of-plane%2F20240412B_OPP.zip"
  },
  {
    "title": "FMR Measurements/Out-of-plane/20240415B_OPP",
    "mediaType": "application/zip",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-3408/FMR%20Measurements%2FOut-of-plane%2F20240415B_OPP.zip"
  }
]
identifier ark:/88434/mds2-3408
issued 2024-09-26
keyword 
[
  "MRAM",
  "ferromagnetic resonance",
  "ferromagnetism",
  "magnetism",
  "thin film"
]
landingPage https://data.nist.gov/od/id/mds2-3408
language 
[
  "en"
]
license https://www.nist.gov/open/license
modified 2024-07-12 00:00:00
programCode 
[
  "006:045"
]
publisher 
{
  "name": "National Institute of Standards and Technology",
  "@type": "org:Organization"
}
theme 
[
  "Physics:MagneticsNanotechnology"
]
title Evaluation of static and dynamic magnetic properties of CoFeB versus thickness

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov