Interplay of Fe and Nd magnetism in NdFeAsO single crystals

W. Tian; W. Ratcliff; M. G. Kim; J. Q. Yan; P. A. Kienzle; Q. Huang; B. Jensen; K. W. Dennis; R. W. McCallum; T. A. Lograsso; R. J. McQueeney; A. I. Goldman; J. W. Lynn; A. Kreyssig

doi:10.1103/PhysRevB.82.060514

Interplay of Fe and Nd magnetism in NdFeAsO single crystals

W. Tian, W. Ratcliff, M. G. Kim, J. Q. Yan, P. A. Kienzle, Q. Huang, B. Jensen, K. W. Dennis, R. W. McCallum, T. A. Lograsso, R. J. McQueeney, A. I. Goldman, J. W. Lynn, A. Kreyssig

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48 Scopus citations

Abstract

The structural and magnetic phase transitions have been studied on NdFeAsO single crystals by neutron and x-ray diffraction complemented by resistivity and specific-heat measurements. Two low-temperature phase transitions have been observed in addition to the tetragonal-to-orthorhombic transition at TS ∼142K and the onset of antiferromagnetic (AFM) Fe order below TN ∼137K. The Fe moments order AFM in the well-known stripelike structure in the (ab) plane but change from AFM to ferromagnetic (FM) arrangement along the c direction below T^- ∼15K accompanied by the onset of Nd AFM order below TNd ∼6K with this same AFM configuration. The iron magnetic order-order transition in NdFeAsO accentuates the Nd-Fe interaction and the delicate balance of c -axis exchange couplings that results in AFM in LaFeAsO and FM in CeFeAsO and PrFeAsO.

Original language	English
Article number	060514
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	82
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.82.060514
State	Published - Aug 25 2010

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Tian, W., Ratcliff, W., Kim, M. G., Yan, J. Q., Kienzle, P. A., Huang, Q., Jensen, B., Dennis, K. W., McCallum, R. W., Lograsso, T. A., McQueeney, R. J., Goldman, A. I., Lynn, J. W., & Kreyssig, A. (2010). Interplay of Fe and Nd magnetism in NdFeAsO single crystals. Physical Review B - Condensed Matter and Materials Physics, 82(6), Article 060514. https://doi.org/10.1103/PhysRevB.82.060514

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title = "Interplay of Fe and Nd magnetism in NdFeAsO single crystals",

abstract = "The structural and magnetic phase transitions have been studied on NdFeAsO single crystals by neutron and x-ray diffraction complemented by resistivity and specific-heat measurements. Two low-temperature phase transitions have been observed in addition to the tetragonal-to-orthorhombic transition at TS ∼142K and the onset of antiferromagnetic (AFM) Fe order below TN ∼137K. The Fe moments order AFM in the well-known stripelike structure in the (ab) plane but change from AFM to ferromagnetic (FM) arrangement along the c direction below T- ∼15K accompanied by the onset of Nd AFM order below TNd ∼6K with this same AFM configuration. The iron magnetic order-order transition in NdFeAsO accentuates the Nd-Fe interaction and the delicate balance of c -axis exchange couplings that results in AFM in LaFeAsO and FM in CeFeAsO and PrFeAsO.",

author = "W. Tian and W. Ratcliff and Kim, {M. G.} and Yan, {J. Q.} and Kienzle, {P. A.} and Q. Huang and B. Jensen and Dennis, {K. W.} and McCallum, {R. W.} and Lograsso, {T. A.} and McQueeney, {R. J.} and Goldman, {A. I.} and Lynn, {J. W.} and A. Kreyssig",

year = "2010",

month = aug,

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doi = "10.1103/PhysRevB.82.060514",

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AU - Tian, W.

AU - Ratcliff, W.

AU - Kim, M. G.

AU - Yan, J. Q.

AU - Kienzle, P. A.

AU - Huang, Q.

AU - Jensen, B.

AU - Dennis, K. W.

AU - McCallum, R. W.

AU - Lograsso, T. A.

AU - McQueeney, R. J.

AU - Goldman, A. I.

AU - Lynn, J. W.

AU - Kreyssig, A.

PY - 2010/8/25

Y1 - 2010/8/25

N2 - The structural and magnetic phase transitions have been studied on NdFeAsO single crystals by neutron and x-ray diffraction complemented by resistivity and specific-heat measurements. Two low-temperature phase transitions have been observed in addition to the tetragonal-to-orthorhombic transition at TS ∼142K and the onset of antiferromagnetic (AFM) Fe order below TN ∼137K. The Fe moments order AFM in the well-known stripelike structure in the (ab) plane but change from AFM to ferromagnetic (FM) arrangement along the c direction below T- ∼15K accompanied by the onset of Nd AFM order below TNd ∼6K with this same AFM configuration. The iron magnetic order-order transition in NdFeAsO accentuates the Nd-Fe interaction and the delicate balance of c -axis exchange couplings that results in AFM in LaFeAsO and FM in CeFeAsO and PrFeAsO.

AB - The structural and magnetic phase transitions have been studied on NdFeAsO single crystals by neutron and x-ray diffraction complemented by resistivity and specific-heat measurements. Two low-temperature phase transitions have been observed in addition to the tetragonal-to-orthorhombic transition at TS ∼142K and the onset of antiferromagnetic (AFM) Fe order below TN ∼137K. The Fe moments order AFM in the well-known stripelike structure in the (ab) plane but change from AFM to ferromagnetic (FM) arrangement along the c direction below T- ∼15K accompanied by the onset of Nd AFM order below TNd ∼6K with this same AFM configuration. The iron magnetic order-order transition in NdFeAsO accentuates the Nd-Fe interaction and the delicate balance of c -axis exchange couplings that results in AFM in LaFeAsO and FM in CeFeAsO and PrFeAsO.

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Interplay of Fe and Nd magnetism in NdFeAsO single crystals

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