2026-06-26T21:09:32Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/521512024-08-29T17:09:20Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Forker, M.
author
Müller, S.
author
Presa Muñoz De Toro, Patricia Marcela De La
2023-06-20T12:40:16Z
2023-06-20T12:40:16Z
2007-05
1098-0121
10.1103/PhysRevB.75.187401
https://hdl.handle.net/20.500.14352/52151
http://dx.doi.org/10.1103/PhysRevB.75.187401
https://journals.aps.org
In their analysis of our perturbed angular correlation (PAC) study of the magnetic phase transitions of RCo₂ [Phys. Rev. B 68, 014409 (2003)], Herrero-Albillos [Phys. Rev. B 73, 134410 (2006)] come to the conclusion that it is very difficult for PAC spectroscopy to distinguish a first-order from a second-order phase transition. The statement is incorrect and does not resolve the conflict between the conclusion drawn from the PAC data and the differential scanning calorimetry data of Herrero- Albillos on the order of the magnetic phase transitions of PrCo₂ and NdCo₂. In this Comment we show that measurements of hyperfine interactions by PAC and other microscopic techniques are a very powerful tool for the investigation of phase transitions which may provide details on the transition not accessible to macroscopic methods. We explain why the PAC data leave no alternative to the conclusion that the spontaneous magnetization of PrCo₂ and NdCo₂ undergoes a discontinuous, first-order phase transition at T_(C).
eng
Comment on “Nature and entropy content of the ordering transitions in RCo₂”
journal article
URL
https://docta.ucm.es/bitstreams/b8ced925-3ca8-4cf8-aea0-871617313532/download
File
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45fd64836d36b755033abbf18138182b
173365
application/pdf
DeLaPresaP 11 libre.pdf