{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,20]],"date-time":"2026-01-20T05:36:55Z","timestamp":1768887415465,"version":"3.49.0"},"reference-count":55,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2014,7,11]],"date-time":"2014-07-11T00:00:00Z","timestamp":1405036800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>Magnetic materials with strong spin-lattice coupling are a powerful set of candidates for multifunctional applications because of their multiferroic, magnetocaloric (MCE), magnetostrictive and magnetoresistive effects. In these materials there is a strong competition between two states (where a state comprises an atomic and an associated magnetic structure) that leads to the occurrence of phase transitions under subtle variations of external parameters, such as temperature, magnetic field and hydrostatic pressure. In this review a general method combining detailed magnetic measurements\/analysis and first principles calculations with the purpose of estimating the phase transition temperature is presented with the help of two examples (Gd5Si2Ge2 and Tb5Si2Ge2). It is demonstrated that such method is an important tool for a deeper understanding of the (de)coupled nature of each phase transition in the materials belonging to the R5(Si,Ge)4 family and most possibly can be applied to other systems. The exotic Griffiths-like phase in the framework of the R5(SixGe1-x)4 compounds is reviewed and its generalization as a requisite for strong phase competitions systems that present large magneto-responsive properties is proposed.<\/jats:p>","DOI":"10.3390\/e16073813","type":"journal-article","created":{"date-parts":[[2014,7,11]],"date-time":"2014-07-11T10:48:29Z","timestamp":1405075709000},"page":"3813-3831","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Phase Competitions behind the Giant Magnetic Entropy Variation: Gd5Si2Ge2 and Tb5Si2Ge2 Case Studies"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6439-7946","authenticated-orcid":false,"given":"Ana","family":"Pires","sequence":"first","affiliation":[{"name":"IFIMUP and IN\u2014Institute of Nanoscience and Nanotechnology, Departamento de F\u00edsica e Astronomia da Faculdade de Ci\u00eancias da Universidade do Porto, Rua do Campo Alegre, 687, Porto 4769-007, Portugal"},{"name":"CFNUL\u2014Centro de F\u00edsica Nuclear da Universidade de Lisboa, Av. Prof. Gama Pinto, 2,  Lisboa 1649-003, Portugal"}]},{"given":"Jo\u00e3o","family":"Belo","sequence":"additional","affiliation":[{"name":"IFIMUP and IN\u2014Institute of Nanoscience and Nanotechnology, Departamento de F\u00edsica e Astronomia da Faculdade de Ci\u00eancias da Universidade do Porto, Rua do Campo Alegre, 687, Porto 4769-007, Portugal"}]},{"given":"Armandina","family":"Lopes","sequence":"additional","affiliation":[{"name":"IFIMUP and IN\u2014Institute of Nanoscience and Nanotechnology, Departamento de F\u00edsica e Astronomia da Faculdade de Ci\u00eancias da Universidade do Porto, Rua do Campo Alegre, 687, Porto 4769-007, Portugal"},{"name":"CFNUL\u2014Centro de F\u00edsica Nuclear da Universidade de Lisboa, Av. Prof. Gama Pinto, 2,  Lisboa 1649-003, Portugal"}]},{"given":"Isabel","family":"Gomes","sequence":"additional","affiliation":[{"name":"IFIMUP and IN\u2014Institute of Nanoscience and Nanotechnology, Departamento de F\u00edsica e Astronomia da Faculdade de Ci\u00eancias da Universidade do Porto, Rua do Campo Alegre, 687, Porto 4769-007, Portugal"}]},{"given":"Luis","family":"Morell\u00f3n","sequence":"additional","affiliation":[{"name":"Instituto de Nanociencia de Arag\u00f3n, Universidad de Zaragoza, ES-50018 Zaragoza, Spain and Departamento de F\u00edsica de la Materia Condensada, Universidad de Zaragoza, Zaragoza 50009, Spain"}]},{"given":"Cesar","family":"Magen","sequence":"additional","affiliation":[{"name":"Instituto de Nanociencia de Arag\u00f3n, Universidad de Zaragoza, ES-50018 Zaragoza, Spain and Departamento de F\u00edsica de la Materia Condensada, Universidad de Zaragoza, Zaragoza 50009, Spain"},{"name":"Fundaci\u00f3n ARAID, Zaragoza 50018, Spain"}]},{"given":"Pedro","family":"Algarabel","sequence":"additional","affiliation":[{"name":"Instituto de Ciencia de Materiales de Arag\u00f3n, CSIC-Universidad de Zaragoza, and Departamento de F\u00edsica de la Materia Condensada, Universidad de Zaragoza, Zaragoza 50009, Spain"}]},{"given":"Manuel","family":"Ibarra","sequence":"additional","affiliation":[{"name":"Instituto de Nanociencia de Arag\u00f3n, Universidad de Zaragoza, ES-50018 Zaragoza, Spain and Departamento de F\u00edsica de la Materia Condensada, Universidad de Zaragoza, Zaragoza 50009, Spain"}]},{"given":"Andr\u00e9","family":"Pereira","sequence":"additional","affiliation":[{"name":"IFIMUP and IN\u2014Institute of Nanoscience and Nanotechnology, Departamento de F\u00edsica e Astronomia da Faculdade de Ci\u00eancias da Universidade do Porto, Rua do Campo Alegre, 687, Porto 4769-007, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1646-7727","authenticated-orcid":false,"given":"Jo\u00e3o","family":"Ara\u00fajo","sequence":"additional","affiliation":[{"name":"IFIMUP and IN\u2014Institute of Nanoscience and Nanotechnology, Departamento de F\u00edsica e Astronomia da Faculdade de Ci\u00eancias da Universidade do Porto, Rua do Campo Alegre, 687, Porto 4769-007, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2014,7,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"799","DOI":"10.1039\/B208133B","article-title":"Complex rare-earth tetrelides, RE5(SixGe(1\u2212x))4: New materials for magnetic refrigeration and a superb playground for solid state chemistry","volume":"35","author":"Miller","year":"2006","journal-title":"Chem. 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