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  Antiferromagnetic ordering and dipolar interactions of YbAlO3

Wu, L. S., Nikitin, S. E., Brando, M., Vasylechko, L., Ehlers, G., Frontzek, M., et al. (2019). Antiferromagnetic ordering and dipolar interactions of YbAlO3. Physical Review B, 99(19): 195117, pp. 1-8. doi:10.1103/PhysRevB.99.195117.

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 Urheber:
Wu, L. S.1, Autor
Nikitin, S. E.2, Autor           
Brando, M.3, Autor           
Vasylechko, L.1, Autor
Ehlers, G.1, Autor
Frontzek, M.1, Autor
Savici, A. T.1, Autor
Sala, G.1, Autor
Christianson, A. D.1, Autor
Lumsden, M. D.1, Autor
Podlesnyak, A.1, Autor
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
3Manuel Brando, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863469              

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 Zusammenfassung: In this paper we report low-temperature magnetic properties of the rare-earth perovskite material YbAlO3. Results of elastic and inelastic neutron scattering experiment, magnetization measurements along with the crystalline electrical field (CEF) calculations, suggest that the ground state of Yb moments is a strongly anisotropic Kramers doublet, and the moments are confined in the ab plane, pointing at an angle of phi = +/- 23.5 degrees to the a axis. With temperature decreasing below T-N = 0.88 K, Yb moments order into the coplanar but noncollinear antiferromagnetic (AFM) structure AxGy, where the moments are pointed along their easy axes. In addition, we highlight the importance of the dipole-dipole interaction, which selects the type of magnetic ordering and may be crucial for understanding magnetic properties of other rare-earth orthorhombic perovskites. Further analysis of the broad diffuse neutron scattering shows that one-dimensional interaction along the c axis is dominant and suggests YbAlO3 as a new member of one-dimensional quantum magnets.

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Sprache(n): eng - English
 Datum: 2019-05-092019-05-09
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: ISI: 000467384300002
DOI: 10.1103/PhysRevB.99.195117
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Titel: Physical Review B
  Kurztitel : Phys. Rev. B
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Woodbury, NY : American Physical Society
Seiten: - Band / Heft: 99 (19) Artikelnummer: 195117 Start- / Endseite: 1 - 8 Identifikator: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008