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  Unconventional Spin State Driven Spontaneous Magnetization in a Praseodymium Iron Antimonide

Pabst, F., Palazzese, S., Seewald, F., Yamamoto, S., Gorbunov, D., Chattopadhyay, S., et al. (2023). Unconventional Spin State Driven Spontaneous Magnetization in a Praseodymium Iron Antimonide. Advanced Materials, 35(8): 2207945, pp. 1-8. doi:10.1002/adma.202207945.

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 Creators:
Pabst, Falk1, Author
Palazzese, Sabrina1, Author
Seewald, Felix1, Author
Yamamoto, Shingo1, Author
Gorbunov, Denis1, Author
Chattopadhyay, Sumanta1, Author
Herrmannsdörfer, Thomas1, Author
Ritter, Clemens1, Author
Finzel, Kati2, Author           
Doert, Thomas1, Author
Klauss, Hans-Henning1, Author
Wosnitza, Jochen1, Author
Ruck, Michael3, Author           
Affiliations:
1External Organizations, ou_persistent22              
2Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
3Michael Ruck, Max Planck Fellow, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863444              

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 Abstract: Consolidating a microscopic understanding of magnetic properties is crucial for a rational design of magnetic materials with tailored characteristics. The interplay of 3d and 4f magnetism in rare-earth transition metal antimonides is an ideal platform to search for such complex behavior. Here the synthesis, crystal growth, structure, and complex magnetic properties are reported of the new compound Pr3Fe3Sb7 as studied by magnetization and electrical transport measurements in static and pulsed magnetic fields up to 56 T, powder neutron diffraction, and Mossbauer spectroscopy. On cooling without external magnetic field, Pr3Fe3Sb7 shows spontaneous magnetization, indicating a symmetry breaking without a compensating domain structure. The Fe substructure exhibits noncollinear ferromagnetic order below the Curie temperature T-C approximate to 380 K. Two spin orientations exist, which approximately align along the Fe-Fe bond directions, one parallel to the ab plane and a second one with the moments canting away from the c axis. The Pr substructure orders below 40 K, leading to a spin-reorientation transition (SRT) of the iron substructure. In low fields, the Fe and Pr magnetic moments order antiparallel to each other, which gives rise to a magnetization antiparallel to the external field. At 1.4 K, the magnetization approaches saturation above 40 T. The compound exhibits metallic resistivity along the c axis, with a small anomaly at the SRT.

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Language(s): eng - English
 Dates: 2023-02-152023-02-15
 Publication Status: Issued
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 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000905182900001
DOI: 10.1002/adma.202207945
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Title: Advanced Materials
  Other : Adv. Mater.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 35 (8) Sequence Number: 2207945 Start / End Page: 1 - 8 Identifier: ISSN: 0935-9648
CoNE: https://pure.mpg.de/cone/journals/resource/954925570855