Novel scalable synthesis of luminescent and magnetic single crystal garnets
This letter reports a novel method for synthesizing RE<sub>3</sub>Ga<sub>5</sub>O<sub>12</sub>, RE<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>, and RE<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub> single-crystal garnets, where RE refers to rare earth elements, including Sc and Y. The garnets are crystallized upon cooling melts of heavy metal oxide glass-forming compositions containing the desired rare earth element. The novelty of this method lies in its ability to reproducibly obtain cubic single-crystal garnets doped with different rare earth elements using the same chemical route, with variations only in the melting temperature and cooling rate. A supersaturated composition in rare earth elements is melted at ∼1200 °C. During the cooling process, cubic crystals precipitate and grow from the supercooled liquid. A unique feature of this approach is that the resulting micrometric, almost monodispersed crystals are uniformly distributed within a residual glass matrix that can be easily etched away. A series of garnets were synthesized and characterized using several techniques. The main details for each family of garnets are presented herein.
Authors
- Ahsan Habib (ORCID: https://orcid.org/0000-0001-6378-5915)
- María Helena Ramírez Acosta (ORCID: https://orcid.org/0000-0001-6023-1693)
- Juliane Resges Orives (ORCID: https://orcid.org/0000-0002-3950-0040)
- Douglas F. Franco (ORCID: https://orcid.org/0000-0002-6273-8612)
- Marcelo Nalin (ORCID: https://orcid.org/0000-0002-7971-6794)
- Thiago A. Lodi (ORCID: https://orcid.org/0000-0002-2305-2079)
- Edgar Dutra Zanotto (ORCID: https://orcid.org/0000-0003-4931-4505)
- Lia Mara Marcondes (ORCID: https://orcid.org/0000-0003-2513-1843)
- Leonardo Vieira Albino (ORCID: https://orcid.org/0000-0003-0441-2371)
Institutions
- Université de Bordeaux (FR)
- Universidade Federal de São Carlos (BR)
- Kaduna Polytechnic (NG)
- Institut de Chimie de la Matière Condensée de Bordeaux (FR)
- Centro Universitário de Araraquara (BR)
- Universidade Estadual Paulista (Unesp) (BR)
Publication Details
- Journal
- Materials Horizons
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5mh00254k
- Citations
- 3
- Primary Topic
- Magneto-Optical Properties and Applications
- Type
- article
- Field-Weighted Citation Impact
- 2.19
Funders
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Fundação Amazônia Paraense de Amparo à Pesquisa
- Universidade de São Paulo
- Université de Bordeaux