Canted magnetic ground state of quarter-doped manganites R 0.75Ca0.25MnO3 (R = Y, Tb, Dy, Ho, and Er)

R. Sinclair; H. B. Cao; V. O. Garlea; M. Lee; E. S. Choi; Z. L. Dun; S. Dong; E. Dagotto; H. D. Zhou

doi:10.1088/1361-648X/aa4de1

Canted magnetic ground state of quarter-doped manganites R _0.75Ca_0.25MnO₃ (R = Y, Tb, Dy, Ho, and Er)

R. Sinclair, H. B. Cao, V. O. Garlea, M. Lee, E. S. Choi, Z. L. Dun, S. Dong, E. Dagotto, H. D. Zhou

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

5 Scopus citations

Abstract

Polycrystalline samples of the quarter-doped manganites R _0.75Ca_0.25MnO₃ (R = Y, Tb, Dy, Ho, and Er) were studied by x-ray diffraction and AC/DC susceptibility measurements. All five samples are orthorhombic and exhibit similar magnetic properties: enhanced ferromagnetism below T ₁ (∼80 K) and a spin glass (SG) state below T _SG (∼30 K). With increasing R ³⁺ ionic size, both T ₁ and T _SG generally increase. The single crystal neutron diffraction results on Tb_0.75Ca_0.25MnO₃ revealed that the SG state is mainly composed of a short-range ordered version of a novel canted (i.e. noncollinear) antiferromagnetic spin state. Furthermore, calculations based on the double exchange model for quarter-doped manganites reveal that this new magnetic phase provides a transition state between the ferromagnetic state and the theoretically predicted spin-orthogonal stripe phase.

Original language	English
Article number	065802
Journal	Journal of Physics Condensed Matter
Volume	29
Issue number	6
DOIs	https://doi.org/10.1088/1361-648X/aa4de1
State	Published - Feb 15 2017

Funding

SD was supported by National Natural Science Foundation of China (Grant Nos. 51322206). ED was supported by the National Science Foundation under Grant No. DMR-1404375. The work at NHMFL is supported by Grant No. NSF-DMR-1157490 and the State of Florida and by the additional funding from NHMFL User Collaboration Support Grant.

Keywords

magnetic materials
magnetoelectrics
spin glass

Access to Document

10.1088/1361-648X/aa4de1

Cite this

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title = "Canted magnetic ground state of quarter-doped manganites R 0.75Ca0.25MnO3 (R = Y, Tb, Dy, Ho, and Er)",

abstract = "Polycrystalline samples of the quarter-doped manganites R 0.75Ca0.25MnO3 (R = Y, Tb, Dy, Ho, and Er) were studied by x-ray diffraction and AC/DC susceptibility measurements. All five samples are orthorhombic and exhibit similar magnetic properties: enhanced ferromagnetism below T 1 (∼80 K) and a spin glass (SG) state below T SG (∼30 K). With increasing R 3+ ionic size, both T 1 and T SG generally increase. The single crystal neutron diffraction results on Tb0.75Ca0.25MnO3 revealed that the SG state is mainly composed of a short-range ordered version of a novel canted (i.e. noncollinear) antiferromagnetic spin state. Furthermore, calculations based on the double exchange model for quarter-doped manganites reveal that this new magnetic phase provides a transition state between the ferromagnetic state and the theoretically predicted spin-orthogonal stripe phase.",

keywords = "magnetic materials, magnetoelectrics, spin glass",

author = "R. Sinclair and Cao, {H. B.} and Garlea, {V. O.} and M. Lee and Choi, {E. S.} and Dun, {Z. L.} and S. Dong and E. Dagotto and Zhou, {H. D.}",

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T1 - Canted magnetic ground state of quarter-doped manganites R 0.75Ca0.25MnO3 (R = Y, Tb, Dy, Ho, and Er)

AU - Sinclair, R.

AU - Cao, H. B.

AU - Garlea, V. O.

AU - Lee, M.

AU - Choi, E. S.

AU - Dun, Z. L.

AU - Dong, S.

AU - Dagotto, E.

AU - Zhou, H. D.

PY - 2017/2/15

Y1 - 2017/2/15

N2 - Polycrystalline samples of the quarter-doped manganites R 0.75Ca0.25MnO3 (R = Y, Tb, Dy, Ho, and Er) were studied by x-ray diffraction and AC/DC susceptibility measurements. All five samples are orthorhombic and exhibit similar magnetic properties: enhanced ferromagnetism below T 1 (∼80 K) and a spin glass (SG) state below T SG (∼30 K). With increasing R 3+ ionic size, both T 1 and T SG generally increase. The single crystal neutron diffraction results on Tb0.75Ca0.25MnO3 revealed that the SG state is mainly composed of a short-range ordered version of a novel canted (i.e. noncollinear) antiferromagnetic spin state. Furthermore, calculations based on the double exchange model for quarter-doped manganites reveal that this new magnetic phase provides a transition state between the ferromagnetic state and the theoretically predicted spin-orthogonal stripe phase.

AB - Polycrystalline samples of the quarter-doped manganites R 0.75Ca0.25MnO3 (R = Y, Tb, Dy, Ho, and Er) were studied by x-ray diffraction and AC/DC susceptibility measurements. All five samples are orthorhombic and exhibit similar magnetic properties: enhanced ferromagnetism below T 1 (∼80 K) and a spin glass (SG) state below T SG (∼30 K). With increasing R 3+ ionic size, both T 1 and T SG generally increase. The single crystal neutron diffraction results on Tb0.75Ca0.25MnO3 revealed that the SG state is mainly composed of a short-range ordered version of a novel canted (i.e. noncollinear) antiferromagnetic spin state. Furthermore, calculations based on the double exchange model for quarter-doped manganites reveal that this new magnetic phase provides a transition state between the ferromagnetic state and the theoretically predicted spin-orthogonal stripe phase.

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