Cited by 23Magnetic Properties and Synthesis of FerritesMagnetic and transport properties of perovskites and related materialsMultiferroics and related materials

Single-Crystal Growth and Room-Temperature Magnetocaloric Effect of X-Type Hexaferrite Sr2Co2Fe28O46

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Wu, Meixia, Zhou, Xiang, Croft, Mark, Ehrlich, Steven, Khalid, Syed, Wen, Wen, Lapidus, Saul H., Xu, Xianghan +3 more·2020·Inorganic Chemistry

Abstract

X-type hexaferrites have been receiving considerable attention due to their promising applications in many magnetic-electronic fields. However, the growth of single-crystal X-type hexaferrite is still a challenge. Herein we reported, for the first time, the preparation of single crystal X-type hexaferrite Sr 2 Co 2 Fe 28 O 46 (Sr 2 Co 2 X) with high-quality and large size using floating-zone method with laser as the heating source. The crystals show rhombohedral symmetry with space group of R -3 m (No. 166, a = 5.8935(1) Å and c = 83.7438(17) Å). Co 2+ and Fe 3+ oxidation states were confirmed by the X-ray absorption near-edge spectroscopy. The prepared Sr 2 Co 2 X exhibits a spin reorientation transition from easy-cone to easy-axis at T 2 of 343 K and a ferrimagnetism–paramagnetism transition at Curie temperature ( T C ) of ∼743 K. The spin reorientation transition was accompanied by magnetocaloric effect (MCE). Both conventional and inverse MCEs were observed near T 2 with a magnetic field applied along the c -axis. The maximum value of the magnetic entropy change along the c -axis was evaluated to be 1.1 J/kg·K for a magnetic field change of 5 T.

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Authors
Wu, M., Zhou, X., Croft, M., Ehrlich, S., Khalid, S., Wen, W., Lapidus, S. H., Xu, X., Li, M.-R., Liu, Z., & Cheong, S.-W.
Affiliations
  • Rutgers, The State University of New Jersey (US)
  • Guangxi University of Science and Technology (CN)
  • Brookhaven National Laboratory (US)
  • Chinese Academy of Sciences (CN)
  • Argonne National Laboratory (US)
  • Sun Yat-sen University (CN)
  • South China University of Technology (CN)
Corresponding author
  • Li, Man-Rong
  • Liu, Zhongwu
Venue
Inorganic Chemistry
Published
2020-05-04
Volume
59
Issue
10
Pages
6755-6762
ISSN
  • 0020-1669 (ISSN-L)
  • 1520-510X
OpenAlex
W3022346518
Cited by
23
References
45
Citations by year
2026: 2 · 2025: 5 · 2024: 8 · 2023: 4 · 2022: 2 · 2021: 2
FWCI
0.78
Type
journal article
Language
en
Open access
Locations
  • Inorganic Chemistry (publishedVersion)
  • PubMed (publishedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • Rutgers University Community Repository (Rutgers University) (submittedVersion)
Funders
  • Ministry of Science and Technology of the People's Republic of China (2017YFA0402800)
  • China Postdoctoral Science Foundation (2018M633222)
  • U.S. Department of Energy (DE-FG02-07ER46382)
  • National Natural Science Foundation of China (11804404, 21875287, U1732121, U1932201)
  • Natural Science Foundation of Guangdong Province (c18140500000854)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Magnetic Properties and Synthesis of Ferrites
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Magnetic and transport properties of perovskites and related materials
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Multiferroics and related materials
Keywords
single crystal growth, floating zone crystal growth, laser heating, magnetocaloric effect, spin reorientation, ferrimagnetism, Curie temperature, magnetic entropy change, rhombohedral structure

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