Low-temperature properties of Ca-doped YbMnO3 multiferroic single crystals

N. Abramov; V. Chichkov; S. E. Lofland; Y. M. Mukovskii

doi:10.1063/1.3556961

Low-temperature properties of Ca-doped YbMnO₃ multiferroic single crystals

N. Abramov, V. Chichkov, S. E. Lofland, Y. M. Mukovskii

Physics

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

The specific heat c_p and magnetization of single crystal hexagonal manganites of the type Yb_1-xCa _xMnO₃ (x=0, 0.05, and 0.10) were measured in a wide temperature range as a function of magnetic field. Antiferromagnetic ordering of the Mn sublattice occurs at T_N 83 K. Ca doping has surprisingly minimal effect on the magnetic properties. At low temperature (∼3.5 K), all compounds show ferromagnetic (FM) ordering in the basal plane attributed to Yb in site 2a. For low fields applied along the c direction, Yb spin reorientation occurs and FM ordering disappears. c_p shows a broad maximum centered at the temperature ∼6 K that is consistent with a Schottky anomaly related to the Zeeman splitting of the Yb moments due to Mn molecular field. In the field of 30 kOe, the re-entrant FM transition takes place with Yb ions in sites 2a and 4b.

Original language	English (US)
Article number	07D912
Journal	Journal of Applied Physics
Volume	109
Issue number	7
DOIs	https://doi.org/10.1063/1.3556961
State	Published - Apr 1 2011

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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title = "Low-temperature properties of Ca-doped YbMnO3 multiferroic single crystals",

abstract = "The specific heat cp and magnetization of single crystal hexagonal manganites of the type Yb1-xCa xMnO3 (x=0, 0.05, and 0.10) were measured in a wide temperature range as a function of magnetic field. Antiferromagnetic ordering of the Mn sublattice occurs at TN 83 K. Ca doping has surprisingly minimal effect on the magnetic properties. At low temperature (∼3.5 K), all compounds show ferromagnetic (FM) ordering in the basal plane attributed to Yb in site 2a. For low fields applied along the c direction, Yb spin reorientation occurs and FM ordering disappears. cp shows a broad maximum centered at the temperature ∼6 K that is consistent with a Schottky anomaly related to the Zeeman splitting of the Yb moments due to Mn molecular field. In the field of 30 kOe, the re-entrant FM transition takes place with Yb ions in sites 2a and 4b.",

author = "N. Abramov and V. Chichkov and Lofland, {S. E.} and Mukovskii, {Y. M.}",

note = "Funding Information: This work was supported in part by NSF Grants DMR 0 908 779 and DMR 0 520 471 and Joint RFBR-NSF Grant 09-02-92661. N.A. was supported by the Program of Creation and Development of the NUST “MISiS.”",

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doi = "10.1063/1.3556961",

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AU - Abramov, N.

AU - Chichkov, V.

AU - Lofland, S. E.

AU - Mukovskii, Y. M.

N1 - Funding Information: This work was supported in part by NSF Grants DMR 0 908 779 and DMR 0 520 471 and Joint RFBR-NSF Grant 09-02-92661. N.A. was supported by the Program of Creation and Development of the NUST “MISiS.”

PY - 2011/4/1

Y1 - 2011/4/1

N2 - The specific heat cp and magnetization of single crystal hexagonal manganites of the type Yb1-xCa xMnO3 (x=0, 0.05, and 0.10) were measured in a wide temperature range as a function of magnetic field. Antiferromagnetic ordering of the Mn sublattice occurs at TN 83 K. Ca doping has surprisingly minimal effect on the magnetic properties. At low temperature (∼3.5 K), all compounds show ferromagnetic (FM) ordering in the basal plane attributed to Yb in site 2a. For low fields applied along the c direction, Yb spin reorientation occurs and FM ordering disappears. cp shows a broad maximum centered at the temperature ∼6 K that is consistent with a Schottky anomaly related to the Zeeman splitting of the Yb moments due to Mn molecular field. In the field of 30 kOe, the re-entrant FM transition takes place with Yb ions in sites 2a and 4b.

AB - The specific heat cp and magnetization of single crystal hexagonal manganites of the type Yb1-xCa xMnO3 (x=0, 0.05, and 0.10) were measured in a wide temperature range as a function of magnetic field. Antiferromagnetic ordering of the Mn sublattice occurs at TN 83 K. Ca doping has surprisingly minimal effect on the magnetic properties. At low temperature (∼3.5 K), all compounds show ferromagnetic (FM) ordering in the basal plane attributed to Yb in site 2a. For low fields applied along the c direction, Yb spin reorientation occurs and FM ordering disappears. cp shows a broad maximum centered at the temperature ∼6 K that is consistent with a Schottky anomaly related to the Zeeman splitting of the Yb moments due to Mn molecular field. In the field of 30 kOe, the re-entrant FM transition takes place with Yb ions in sites 2a and 4b.

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Low-temperature properties of Ca-doped YbMnO₃ multiferroic single crystals

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