Author(s)

Gulshan Prakash Malik^1,2, Vijaya Shankar Varma^1,3

¹Gurugram, India.
²Theory Group, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India.
³Department of Physics and Astrophysics, University of Delhi, Delhi, India.

Based on μ-, T- and H-dependent pairing and number equations and the premise that μ(T) is predominantly the cause of the variation of the upper critical field H_c2(T), where μ, T and H denote the chemical potential, temperature and the applied field, respectively, we provide in this paper fits to the empirical H_c2(T) data of H₃S reported by Mozaffari, et al. (2019) and deal with the issue of whether or not H₃S exhibits the Meissner effect. Employing a variant of the template given by Dogan and Cohen (2021), we examine in detail the results of Hirsch and Marsiglio (2022) who have claimed that H₃S does not exhibit the Meissner effect and Minkov, et al. (2023) who have claimed that it does. We are thus led to suggest that monitoring the chemical potential (equivalently, the number density of Cooper pairs N_s at T = T_c) should shed new light on the issue being addressed.

Compressed H₃S, Upper and Lower Critical Fields, Chemical Potential, Generalized Pairing and Number Equations, Coherence Length, Penetration Depth, Meissner Effect

Malik, G. and Varma, V. (2023) Compressed H₃S: Fits to the Empirical H_c2(T) Data and a Discussion of the Meissner Effect. World Journal of Condensed Matter Physics, 13, 111-127. doi: 10.4236/wjcmp.2023.134008.