Unexpected magnetism, Griffiths phase, and exchange bias in the mixed lanthanide Pr0.6 Er0.4 Al2

Arjun K. Pathak; D. Paudyal; W. T. Jayasekara; S. Calder; A. Kreyssig; A. I. Goldman; K. A. Gschneidner; V. K. Pecharsky

doi:10.1103/PhysRevB.89.224411

Unexpected magnetism, Griffiths phase, and exchange bias in the mixed lanthanide Pr0.6 Er0.4 Al2

Arjun K. Pathak, D. Paudyal, W. T. Jayasekara, S. Calder, A. Kreyssig, A. I. Goldman, K. A. Gschneidner, V. K. Pecharsky

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Abstract

We report an unusual coexistence of ferromagnetism and ferrimagnetism, and metamagnetism in Pr0.6Er0.4Al2. In addition, this compound retains a clear Griffiths phase behavior even at 1 kOe magnetic field and shows a large exchange bias after field cooling from the paramagnetic state. The crystal-field excitations and opposite exchange interactions between nearest-neighbor and next-nearest-neighbor rare earth sites explain these behaviors.

Original language	English
Article number	224411
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	89
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.89.224411
State	Published - Jun 17 2014

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abstract = "We report an unusual coexistence of ferromagnetism and ferrimagnetism, and metamagnetism in Pr0.6Er0.4Al2. In addition, this compound retains a clear Griffiths phase behavior even at 1 kOe magnetic field and shows a large exchange bias after field cooling from the paramagnetic state. The crystal-field excitations and opposite exchange interactions between nearest-neighbor and next-nearest-neighbor rare earth sites explain these behaviors.",

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T1 - Unexpected magnetism, Griffiths phase, and exchange bias in the mixed lanthanide Pr0.6 Er0.4 Al2

AU - Pathak, Arjun K.

AU - Paudyal, D.

AU - Jayasekara, W. T.

AU - Calder, S.

AU - Kreyssig, A.

AU - Goldman, A. I.

AU - Gschneidner, K. A.

AU - Pecharsky, V. K.

PY - 2014/6/17

Y1 - 2014/6/17

N2 - We report an unusual coexistence of ferromagnetism and ferrimagnetism, and metamagnetism in Pr0.6Er0.4Al2. In addition, this compound retains a clear Griffiths phase behavior even at 1 kOe magnetic field and shows a large exchange bias after field cooling from the paramagnetic state. The crystal-field excitations and opposite exchange interactions between nearest-neighbor and next-nearest-neighbor rare earth sites explain these behaviors.

AB - We report an unusual coexistence of ferromagnetism and ferrimagnetism, and metamagnetism in Pr0.6Er0.4Al2. In addition, this compound retains a clear Griffiths phase behavior even at 1 kOe magnetic field and shows a large exchange bias after field cooling from the paramagnetic state. The crystal-field excitations and opposite exchange interactions between nearest-neighbor and next-nearest-neighbor rare earth sites explain these behaviors.

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DO - 10.1103/PhysRevB.89.224411

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JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

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Unexpected magnetism, Griffiths phase, and exchange bias in the mixed lanthanide Pr0.6 Er0.4 Al2

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