Rare-earth-dependent magnetic anisotropy in REBa2Cu 3Oy

Atsushi Ishihara; Shigeru Horii; Tetsuo Uchikoshi; Tohru S. Suzuki; Yoshio Sakka; Hiraku Ogino; Jun Ichi Shimoyama; Kohji Kishio

doi:10.1143/APEX.1.031701

Rare-earth-dependent magnetic anisotropy in REBa₂Cu ₃O_y

Atsushi Ishihara^*, Shigeru Horii, Tetsuo Uchikoshi, Tohru S. Suzuki, Yoshio Sakka, Hiraku Ogino, Jun Ichi Shimoyama, Kohji Kishio

^*Corresponding author for this work

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

11 Citations (Scopus)

Abstract

We report magnetic anisotropics (Δ_χ) depending on rare earth (RE) element in the paramagnetic REBa₂Cu₃O _y (RE123) system as an important finding of magneto-scientific grain-orientation. The c-axis-oriented RE123 powder samples using static or rotating magnetic fields were fabricated at room temperature to clarify Ax. Their easy axes of magnetization were mainly dominated by second-order Stevens factors, whereas |Δ_χ| largely depended on y and RE elements. Especially for heavy RE elements, |Δ^χ| reached the order of 10^-4, indicating that appropriate choice of RE directly leads to a drastic reduction of required magnetic fields for grain-orientation of RE123.

Original language	English
Pages (from-to)	317011-317013
Number of pages	3
Journal	Applied Physics Express
Volume	1
Issue number	3
DOIs	https://doi.org/10.1143/APEX.1.031701
Publication status	Published - 2008 Mar 1
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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abstract = "We report magnetic anisotropics (Δχ) depending on rare earth (RE) element in the paramagnetic REBa2Cu3O y (RE123) system as an important finding of magneto-scientific grain-orientation. The c-axis-oriented RE123 powder samples using static or rotating magnetic fields were fabricated at room temperature to clarify Ax. Their easy axes of magnetization were mainly dominated by second-order Stevens factors, whereas |Δχ| largely depended on y and RE elements. Especially for heavy RE elements, |Δχ| reached the order of 10-4, indicating that appropriate choice of RE directly leads to a drastic reduction of required magnetic fields for grain-orientation of RE123.",

author = "Atsushi Ishihara and Shigeru Horii and Tetsuo Uchikoshi and Suzuki, {Tohru S.} and Yoshio Sakka and Hiraku Ogino and Shimoyama, {Jun Ichi} and Kohji Kishio",

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T1 - Rare-earth-dependent magnetic anisotropy in REBa2Cu 3Oy

AU - Ishihara, Atsushi

AU - Horii, Shigeru

AU - Uchikoshi, Tetsuo

AU - Suzuki, Tohru S.

AU - Sakka, Yoshio

AU - Ogino, Hiraku

AU - Shimoyama, Jun Ichi

AU - Kishio, Kohji

PY - 2008/3/1

Y1 - 2008/3/1

N2 - We report magnetic anisotropics (Δχ) depending on rare earth (RE) element in the paramagnetic REBa2Cu3O y (RE123) system as an important finding of magneto-scientific grain-orientation. The c-axis-oriented RE123 powder samples using static or rotating magnetic fields were fabricated at room temperature to clarify Ax. Their easy axes of magnetization were mainly dominated by second-order Stevens factors, whereas |Δχ| largely depended on y and RE elements. Especially for heavy RE elements, |Δχ| reached the order of 10-4, indicating that appropriate choice of RE directly leads to a drastic reduction of required magnetic fields for grain-orientation of RE123.

AB - We report magnetic anisotropics (Δχ) depending on rare earth (RE) element in the paramagnetic REBa2Cu3O y (RE123) system as an important finding of magneto-scientific grain-orientation. The c-axis-oriented RE123 powder samples using static or rotating magnetic fields were fabricated at room temperature to clarify Ax. Their easy axes of magnetization were mainly dominated by second-order Stevens factors, whereas |Δχ| largely depended on y and RE elements. Especially for heavy RE elements, |Δχ| reached the order of 10-4, indicating that appropriate choice of RE directly leads to a drastic reduction of required magnetic fields for grain-orientation of RE123.

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Rare-earth-dependent magnetic anisotropy in REBa₂Cu ₃O_y

Abstract

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