Thermodynamic properties and neutron diffraction studies of silver ferrite AgFeO2

A. Vasiliev; O. Volkova; I. Presniakov; A. Baranov; G. Demazeau; J. M. Broto; M. Millot; N. Leps; R. Klingeler; B. Büchner; M. B. Stone; A. Zheludev

doi:10.1088/0953-8984/22/1/016007

Thermodynamic properties and neutron diffraction studies of silver ferrite AgFeO₂

A. Vasiliev, O. Volkova, I. Presniakov, A. Baranov, G. Demazeau, J. M. Broto, M. Millot, N. Leps, R. Klingeler, B. Büchner, M. B. Stone, A. Zheludev

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Abstract

We present thermodynamic and neutron scattering data on silver ferrite AgFeO₂. The data imply that strong magnetic frustration Θ/T_N∼10 and magnetic ordering arise via two successive phase transitions at T₂ = 7K and T₁ = 16K. At T<T ₂, two metamagnetic phase transitions at B₁∼14T and B₂∼30T can be identified through the change of slope in the magnetization curve measured up to 53T. These transitions roughly correspond to an eighth and a quarter of the saturation magnetizations. Unlike for the 'classical' delafossite CuFeO₂, the wavevector of the magnetic structure is independent of temperature both at T<T₂ and at T ₂<T<T₁.

Original language	English
Article number	016007
Journal	Journal of Physics Condensed Matter
Volume	22
Issue number	1
DOIs	https://doi.org/10.1088/0953-8984/22/1/016007
State	Published - 2010

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title = "Thermodynamic properties and neutron diffraction studies of silver ferrite AgFeO2",

abstract = "We present thermodynamic and neutron scattering data on silver ferrite AgFeO2. The data imply that strong magnetic frustration Θ/TN∼10 and magnetic ordering arise via two successive phase transitions at T2 = 7K and T1 = 16K. At T2, two metamagnetic phase transitions at B1∼14T and B2∼30T can be identified through the change of slope in the magnetization curve measured up to 53T. These transitions roughly correspond to an eighth and a quarter of the saturation magnetizations. Unlike for the 'classical' delafossite CuFeO2, the wavevector of the magnetic structure is independent of temperature both at T2 and at T 21.",

author = "A. Vasiliev and O. Volkova and I. Presniakov and A. Baranov and G. Demazeau and Broto, {J. M.} and M. Millot and N. Leps and R. Klingeler and B. B{\"u}chner and Stone, {M. B.} and A. Zheludev",

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TY - JOUR

T1 - Thermodynamic properties and neutron diffraction studies of silver ferrite AgFeO2

AU - Vasiliev, A.

AU - Volkova, O.

AU - Presniakov, I.

AU - Baranov, A.

AU - Demazeau, G.

AU - Broto, J. M.

AU - Millot, M.

AU - Leps, N.

AU - Klingeler, R.

AU - Büchner, B.

AU - Stone, M. B.

AU - Zheludev, A.

PY - 2010

Y1 - 2010

N2 - We present thermodynamic and neutron scattering data on silver ferrite AgFeO2. The data imply that strong magnetic frustration Θ/TN∼10 and magnetic ordering arise via two successive phase transitions at T2 = 7K and T1 = 16K. At T2, two metamagnetic phase transitions at B1∼14T and B2∼30T can be identified through the change of slope in the magnetization curve measured up to 53T. These transitions roughly correspond to an eighth and a quarter of the saturation magnetizations. Unlike for the 'classical' delafossite CuFeO2, the wavevector of the magnetic structure is independent of temperature both at T2 and at T 21.

AB - We present thermodynamic and neutron scattering data on silver ferrite AgFeO2. The data imply that strong magnetic frustration Θ/TN∼10 and magnetic ordering arise via two successive phase transitions at T2 = 7K and T1 = 16K. At T2, two metamagnetic phase transitions at B1∼14T and B2∼30T can be identified through the change of slope in the magnetization curve measured up to 53T. These transitions roughly correspond to an eighth and a quarter of the saturation magnetizations. Unlike for the 'classical' delafossite CuFeO2, the wavevector of the magnetic structure is independent of temperature both at T2 and at T 21.

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U2 - 10.1088/0953-8984/22/1/016007

DO - 10.1088/0953-8984/22/1/016007

M3 - Article

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VL - 22

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

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ER -

Thermodynamic properties and neutron diffraction studies of silver ferrite AgFeO₂

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