Relaxorlike spin-glass phase in the layered manganite (La0.8Gd0.2)1.4 Sr1.6Mn2O7

Joonghoe Dho; W. S. Kim; N. H. Hur

Relaxorlike spin-glass phase in the layered manganite (La_0.8Gd_0.2)_1.4 Sr_1.6Mn₂O₇

Joonghoe Dho, W. S. Kim, N. H. Hur

Department of Physics

Korea Research Institute of Standards and Science

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

39 Scopus citations

Abstract

We have investigated the magnetic and transport properties of the Gd-doped layered manganite (La_0.8Gd_0.2)_1.4 Sr_1.6Mn₂O₇. The Gd-doped compound shows the nonmetallic spin-glass-like state below 30 K, driven by competing interaction between the antiferromagnetic and ferromagnetic states. Furthermore, this compound exhibits various relaxorlike phenomena such as the diffuse phase transition and magnetic-field annealing and aging effects, which appears to be caused by the local lattice distortion originating from the random distribution of small Gd³⁺ ion.

Original language	English
Article number	024404
Pages (from-to)	244041-244046
Number of pages	6
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	65
Issue number	2
State	Published - 1 Jan 2002

Cite this

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abstract = "We have investigated the magnetic and transport properties of the Gd-doped layered manganite (La0.8Gd0.2)1.4 Sr1.6Mn2O7. The Gd-doped compound shows the nonmetallic spin-glass-like state below 30 K, driven by competing interaction between the antiferromagnetic and ferromagnetic states. Furthermore, this compound exhibits various relaxorlike phenomena such as the diffuse phase transition and magnetic-field annealing and aging effects, which appears to be caused by the local lattice distortion originating from the random distribution of small Gd3+ ion.",

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AU - Kim, W. S.

AU - Hur, N. H.

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N2 - We have investigated the magnetic and transport properties of the Gd-doped layered manganite (La0.8Gd0.2)1.4 Sr1.6Mn2O7. The Gd-doped compound shows the nonmetallic spin-glass-like state below 30 K, driven by competing interaction between the antiferromagnetic and ferromagnetic states. Furthermore, this compound exhibits various relaxorlike phenomena such as the diffuse phase transition and magnetic-field annealing and aging effects, which appears to be caused by the local lattice distortion originating from the random distribution of small Gd3+ ion.

AB - We have investigated the magnetic and transport properties of the Gd-doped layered manganite (La0.8Gd0.2)1.4 Sr1.6Mn2O7. The Gd-doped compound shows the nonmetallic spin-glass-like state below 30 K, driven by competing interaction between the antiferromagnetic and ferromagnetic states. Furthermore, this compound exhibits various relaxorlike phenomena such as the diffuse phase transition and magnetic-field annealing and aging effects, which appears to be caused by the local lattice distortion originating from the random distribution of small Gd3+ ion.

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ER -

Relaxorlike spin-glass phase in the layered manganite (La_0.8Gd_0.2)_1.4 Sr_1.6Mn₂O₇

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