DOI: 10.1063/1.370177. An investigation of magnetic reversal in submicron-scale Co dots using first order reversal curve diagrams

An investigation of magnetic reversal in submicron-scale Co dots using first order reversal curve diagrams

10.1063/1.370177

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

First order reversal curve (FORC) diagrams are a powerful method of investigating the physical mechanisms giving rise to hysteresis in magnetic systems. We have acquired FORC diagrams for an array of submicron-scale Co dots fabricated by interference lithography. These dots reverse magnetization through the nucleation and annihilation of a single-vortex state. Using FORC diagrams, we are able to obtain precise values for the nucleation and annihilation fields involved in magnetic reversal. Our results indicate, however, that there are actually two distinct paths for vortex annihilation: When a complete magnetic reversal takes place, a vortex enters on one side of a dot and exits out the opposite side. But if the magnetization is returned to its original orientation before a complete reversal has occurred, then the vortex will exit on the same side from which it has entered. We are unable to obtain a precise field value for this later path of annihilation; however, it is shown that, statistically, the vortex annihilates with greater ease when it exits out the same side from which it has entered.

Bibliography

Pike, C., & Fernandez, A. (1999). An investigation of magnetic reversal in submicron-scale Co dots using first order reversal curve diagrams. Journal of Applied Physics, 85(9), 6668â6676.

Authors 2

Chris Pike (first)
Andres Fernandez (additional)

References 7 Referenced 121

10.1063/1.370176 / J. Appl. Phys. (1999)
{'key': '2024021008335308900_r2'}
{'key': '2024021008335308900_r3', 'first-page': '3019', 'volume': 'MAG-33', 'year': '1997', 'journal-title': 'IEEE Trans. Magn.'} / IEEE Trans. Magn. (1997)
10.1016/0304-8853(95)00723-7 / J. Magn. Magn. Mater. (1996)
10.1016/S0304-8853(98)00267-4 / J. Magn. Magn. Mater. (1998)
{'key': '2024021008335308900_r6'}
10.1103/PhysRevB.53.3341 / Phys. Rev. B (1996)

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:39 a.m.)
Deposited	1 year, 6 months ago (Feb. 10, 2024, 5:20 a.m.)
Indexed	21 hours, 52 minutes ago (Sept. 1, 2025, 6:32 a.m.)
Issued	26 years, 4 months ago (May 1, 1999)
Published	26 years, 4 months ago (May 1, 1999)
Published Print	26 years, 4 months ago (May 1, 1999)

Funders 0

None

BibTeX

@article{Pike_1999, title={An investigation of magnetic reversal in submicron-scale Co dots using first order reversal curve diagrams}, volume={85}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.370177}, DOI={10.1063/1.370177}, number={9}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Pike, Chris and Fernandez, Andres}, year={1999}, month=may, pages={6668–6676} }

JSON

{
  "indexed": {
    "date-parts": [
      [
        2025,
        9,
        1
      ]
    ],
    "date-time": "2025-09-01T10:32:35Z",
    "timestamp": 1756722755099
  },
  "reference-count": 7,
  "publisher": "AIP Publishing",
  "issue": "9",
  "content-domain": {
    "domain": [
      "pubs.aip.org"
    ],
    "crossmark-restriction": true
  },
  "published-print": {
    "date-parts": [
      [
        1999,
        5,
        1
      ]
    ]
  },
  "abstract": "<jats:p>First order reversal curve (FORC) diagrams are a powerful method of investigating the physical mechanisms giving rise to hysteresis in magnetic systems. We have acquired FORC diagrams for an array of submicron-scale Co dots fabricated by interference lithography. These dots reverse magnetization through the nucleation and annihilation of a single-vortex state. Using FORC diagrams, we are able to obtain precise values for the nucleation and annihilation fields involved in magnetic reversal. Our results indicate, however, that there are actually two distinct paths for vortex annihilation: When a complete magnetic reversal takes place, a vortex enters on one side of a dot and exits out the opposite side. But if the magnetization is returned to its original orientation before a complete reversal has occurred, then the vortex will exit on the same side from which it has entered. We are unable to obtain a precise field value for this later path of annihilation; however, it is shown that, statistically, the vortex annihilates with greater ease when it exits out the same side from which it has entered.</jats:p>",
  "DOI": "10.1063/1.370177",
  "type": "journal-article",
  "created": {
    "date-parts": [
      [
        2002,
        7,
        26
      ]
    ],
    "date-time": "2002-07-26T12:39:21Z",
    "timestamp": 1027687161000
  },
  "page": "6668-6676",
  "update-policy": "http://dx.doi.org/10.1063/aip-crossmark-policy-page",
  "source": "Crossref",
  "is-referenced-by-count": 121,
  "title": "An investigation of magnetic reversal in submicron-scale Co dots using first order reversal curve diagrams",
  "prefix": "10.1063",
  "volume": "85",
  "author": [
    {
      "given": "Chris",
      "family": "Pike",
      "sequence": "first",
      "affiliation": [
        {
          "name": "Department of Geology, University of California, Davis, California\u200995616"
        }
      ]
    },
    {
      "given": "Andres",
      "family": "Fernandez",
      "sequence": "additional",
      "affiliation": [
        {
          "name": "Lawrence Livermore National Laboratory, Livermore, California\u200994551"
        }
      ]
    }
  ],
  "member": "317",
  "reference": [
    {
      "key": "2024021008335308900_r1",
      "doi-asserted-by": "crossref",
      "first-page": "6660",
      "DOI": "10.1063/1.370176",
      "volume": "85",
      "year": "1999",
      "journal-title": "J. Appl. Phys."
    },
    {
      "key": "2024021008335308900_r2"
    },
    {
      "key": "2024021008335308900_r3",
      "first-page": "3019",
      "volume": "MAG-33",
      "year": "1997",
      "journal-title": "IEEE Trans. Magn."
    },
    {
      "key": "2024021008335308900_r4",
      "doi-asserted-by": "crossref",
      "first-page": "140",
      "DOI": "10.1016/0304-8853(95)00723-7",
      "volume": "155",
      "year": "1996",
      "journal-title": "J. Magn. Magn. Mater."
    },
    {
      "key": "2024021008335308900_r5",
      "doi-asserted-by": "crossref",
      "first-page": "71",
      "DOI": "10.1016/S0304-8853(98)00267-4",
      "volume": "190",
      "year": "1998",
      "journal-title": "J. Magn. Magn. Mater."
    },
    {
      "key": "2024021008335308900_r6"
    },
    {
      "key": "2024021008335308900_r7",
      "doi-asserted-by": "crossref",
      "first-page": "3341",
      "DOI": "10.1103/PhysRevB.53.3341",
      "volume": "53",
      "year": "1996",
      "journal-title": "Phys. Rev. B"
    }
  ],
  "container-title": "Journal of Applied Physics",
  "original-title": [],
  "language": "en",
  "link": [
    {
      "URL": "https://pubs.aip.org/aip/jap/article-pdf/85/9/6668/18980669/6668_1_online.pdf",
      "content-type": "application/pdf",
      "content-version": "vor",
      "intended-application": "syndication"
    },
    {
      "URL": "https://pubs.aip.org/aip/jap/article-pdf/85/9/6668/18980669/6668_1_online.pdf",
      "content-type": "unspecified",
      "content-version": "vor",
      "intended-application": "similarity-checking"
    }
  ],
  "deposited": {
    "date-parts": [
      [
        2024,
        2,
        10
      ]
    ],
    "date-time": "2024-02-10T10:20:51Z",
    "timestamp": 1707560451000
  },
  "score": 1,
  "resource": {
    "primary": {
      "URL": "https://pubs.aip.org/jap/article/85/9/6668/690569/An-investigation-of-magnetic-reversal-in-submicron"
    }
  },
  "subtitle": [],
  "short-title": [],
  "issued": {
    "date-parts": [
      [
        1999,
        5,
        1
      ]
    ]
  },
  "references-count": 7,
  "journal-issue": {
    "issue": "9",
    "published-print": {
      "date-parts": [
        [
          1999,
          5,
          1
        ]
      ]
    }
  },
  "URL": "http://dx.doi.org/10.1063/1.370177",
  "relation": {},
  "ISSN": [
    "0021-8979",
    "1089-7550"
  ],
  "subject": [],
  "published-other": {
    "date-parts": [
      [
        1999,
        5,
        1
      ]
    ]
  },
  "published": {
    "date-parts": [
      [
        1999,
        5,
        1
      ]
    ]
  }
}