Revista Mexicana de Física (Rev. Mex. Fis.) is a bimonthly publication of Socie­dad Mexicana de Física, A. C. Publishes original papers of interest to the physical science community. Language may be English or Spanish, however, given the nature of our readership, English is recommended. Articles are classified as follows: Research. Articles reporting original results in physi­cs. Reviews. Critical surveys of specific physics topics in which recent published information is analyzed and discussed. Reviews should provide valuable bibliography to the specialists. Reviews are requested by invitation. Alternatively, authors can submit a review project. In the latter case, the editorial committee will decide whether or not to accept the project. Comments. Short papers (four pages maximum) that critically address papers by others authors previously published in the Revista Mexicana de Física. A comment should state clearly to which paper it refers. Errata. Short papers (two pages maximum) where results of previous published work is ammended.

The fundamental purpose of the Revista Mexicana de Física is to publish the research work in physics carried out by the institutions of Mexico and Latin America

Indexed in Actualidad Iberoamericana, Astron. & Astrophys. Abstr., Bull. Signal, Chem. Abstr., Curr. Cont., Curr. Math. Pub., Curr. Pap. Phys., Electr. & Electron. Abstr., INIS Atomind, Journal Citation Reports (JCR), Math. Sci., LatIndex, Math. Rev., Nucl. Sci. Abstr., PERIODICA, Phys. Abstr., Phys. Ber., Res. Alert, Sci. Abstr., Sci. Cit. Ind., SciSearch, and VINITI. It is also indexed in the “Revistas Mexicanas de Investigación Científica y Tecnológica Index” by the Consejo Nacional de Ciencia y Tecnología.

CURRENT ISSUE Vol. 67, Issue 1 (2021)

Announcements

REVISTA MEXICANA DE FÍSICA, year 67, issue 2, March-April 2021. Bimonthly Journal published by Sociedad Mexicana de Física, A. C. Departamento de Física, 2º Piso, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, Alcaldía Coyacán, C.P. 04510 , Ciudad de México. Apartado Postal 70-348. Tel. (+52)55-5622-4946, https://rmf.smf.mx/ojs/rmf, e-mail: rmf@ciencias.unam.mx. Chief Editor: José Alejandro Ayala Mercado. INDAUTOR Certificate of Reserve: 04-2019-080216404400-203, ISSN: 2683-2224 (on line), 0035-001X (print), both granted by Instituto Nacional del Derecho de Autor. Responsible for the last update of this issue, Technical Staff of Sociedad Mexicana de Física, A. C., Fís. Efraín Garrido Román, 2º. Piso, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, Alcaldía Coyacán, C.P. 04510 , Ciudad de México. Date of last modification, March 1st., 2021.

The responsibility of the materials published in Revista Mexicana de Física rests solely with their authors and their content does not necessarily reflect the criteria of the Editorial Committee or the Sociedad Mexicana de Física. The total or partial reproduction of the texts hereby published is authorized as long as the complete source and the electronic address of the publications are cited.

There is no fee for article processing, submission or publication.

Revista Mexicana de Física by Sociedad Mexicana de Física, A. C. is distributed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License