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  Multiple magnetic transitions and electrical transport transformation of a BaFeO3 cubic perovskite single crystal

Liu, Y., Liu, Z., Li, Z., Qin, S., Ye, X., Shen, X., et al. (2020). Multiple magnetic transitions and electrical transport transformation of a BaFeO3 cubic perovskite single crystal. Physical Review B, 101(14): 144421, pp. 1-7. doi:10.1103/PhysRevB.101.144421.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-4EAE-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-4EB0-C
Genre: Journal Article

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 Creators:
Liu, Yuxuan1, Author
Liu, Zhehong1, Author
Li, Zhi1, Author
Qin, Shijun1, Author
Ye, Xubin1, Author
Shen, Xudong1, Author
Zhou, Bowen1, Author
Zhou, Guanghui1, Author
Agrestini, Stefano2, Author              
Valvidares, Manuel1, Author
Vasili, Hari Babu1, Author
Hu, Zhiwei3, Author              
Long, Youwen1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Stefano Agrestini, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863459              
3Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863461              

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 Abstract: Cubic perovskite BaFeO3 single crystals with stoichiometric oxygen content were successfully grown by a two-step method. With decreasing temperature, the crystal experiences a spin-glassy transition at T-SG approximate to 181 K, followed by a long-range spiral antiferromagnetic ordering at T-N approximate to 117 K, and then a third spin transition at T'(N) approximate to 97K, revealing the subtle magnetic competition and interactions. As a result, a smaller magnetic field (similar to 0.4 T) can induce a metamagnetic transition towards a ferromagnetic state with the saturated magnetic moment about 3.2 mu(B)/f.u. at 2 K. The easy magnetization axis looks to vary from the direction perpendicular to [111] to the [100] axis. Semiconducting behavior with a small activation energy is observed above TN, whereas the spiral spin ordering changes the electrical transport to be likely half-metallic with considerable negative magnetoresistance effect.

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Language(s): eng - English
 Dates: 2020-04-152020-04-15
 Publication Status: Published in print
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 101 (14) Sequence Number: 144421 Start / End Page: 1 - 7 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008