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Grant support

S.P. and J.V. acknowledge the support of the Agence Nationale de la Recherche, Project No. ANR-17-CE24-0025 (TOPSKY). B. Fernandez, Ph. David and E. Mossang are acknowledged for their technical help. D.S.C. was supported by a CNPq Scholarship (Brazil). S.P. thanks A. Thiaville, C. Lacroix and Mairbek Chshiev for fruitful discussions.

Analysis of institutional authors

Ajejas, FernandoAuthor

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Article

Oxidation dependence of the Dzyaloshinskii-Moriya interaction in Pt/Co/MOx trilayers (M = Al or Gd)

Publicated to:PHYSICAL REVIEW B. 99 (14): - 2019-04-04 99(14), DOI: 10.1103/PhysRevB.99.144404

Authors: Chaves, Dayane de Souza; Ajejas, Fernando; Krizakova, Viola; Vogel, Jan; Pizzini, Stefania;

Affiliations

Univ Autonoma Madrid, Campus Cantoblanco, E-28049 Madrid, Spain - Author
Univ Grenoble Alpes, CNRS, Inst Neel, F-38000 Grenoble, France - Author
Univ Paris Saclay, Unite Mixte Rech CNRS Thales, Palaiseau, France - Author

Abstract

We have studied the interfacial Dzyaloshinskii-Moriya interaction (DMI) in Pt/Co/MOx (M = Al, Gd) trilayers in which the degree of oxidation of the top Co interface is varied. To access reliable values of the DMI strength, we have used a method based on the measurement of the saturation velocity of field driven chiral Neel domain walls. We show that the effective DMI strength in the Pt/Co/MOx trilayers varies with the oxidation degree of the Co/MOx interface. This strongly suggests that the Co/MOx interface gives a distinct contribution to the total DMI, adding to that of the Pt/Co interface. The DMI presents a maximum for the oxygen coverage maximizing also the interface magnetic anisotropy energy K-s. This calls for common microscopic origins for the contributions of the Co/MOx interface to DMI and K-s.

Keywords

Magnetic-anisotropySpin torque

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal PHYSICAL REVIEW B due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2019, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Condensed Matter Physics. Notably, the journal is positioned above the 90th percentile.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 1.16. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 14, 2024)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Weighted Average of Normalized Impact by the Scopus agency: 1.92 (source consulted: FECYT Feb 2024)
  • Field Citation Ratio (FCR) from Dimensions: 9.18 (source consulted: Dimensions Jun 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-06-18, the following number of citations:

  • WoS: 28
  • Scopus: 33
  • OpenCitations: 33

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-18:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 26.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 51 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 0.5.
  • The number of mentions on the social network Facebook: 1 (Altmetric).
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: France.