Magnetism and high-magnetic field magnetization in alkali superoxide CsO2

Mizuki Miyajima, Fahmi Astuti, Takeshi Kakuto, Akira Matsuo, Dita Puspita Sari, Retno Asih, Kouichi Okunishi, Takehito Nakano, Yasuo Nozue, Koichi Kindo, Isao Watanabe, Takashi Kambe

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Abstract

Alkali superoxide CsO2 is one of the candidates for the spin-1 2 one-dimensional (1D) antiferromagnet, which may be sequentially formed by an ordering of the π-orbital of O2 molecule below TS ∼ 70 K. Here, we report the magnetism and the high-magnetic field magnetization in pulsed-magnetic fields up to 60 T in powder CsO2. We obtained the low temperature phase diagram around the antiferromagnetic ordering temperature TN = 9.6 K under the magnetic field. At T = 1.3 K, we observed a remarkable up-turn curvature in the magnetization around a saturation field of ∼60 T, which indicates the low-dimensional nature of the spin system. The saturated magnetization is also estimated to be ∼1μB, which corresponds to spin-1 2. In this study we compare it with the theoretical calculation.

Original languageEnglish
Article number063704-1
JournalJournal of the Physical Society of Japan
Volume87
Issue number6
DOIs
Publication statusPublished - Jan 1 2018

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inorganic peroxides
alkalies
magnetization
magnetic fields
curvature
phase diagrams
saturation
orbitals
molecules
temperature

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Magnetism and high-magnetic field magnetization in alkali superoxide CsO2 . / Miyajima, Mizuki; Astuti, Fahmi; Kakuto, Takeshi; Matsuo, Akira; Sari, Dita Puspita; Asih, Retno; Okunishi, Kouichi; Nakano, Takehito; Nozue, Yasuo; Kindo, Koichi; Watanabe, Isao; Kambe, Takashi.

In: Journal of the Physical Society of Japan, Vol. 87, No. 6, 063704-1, 01.01.2018.

Research output: Contribution to journalArticle

Miyajima, M, Astuti, F, Kakuto, T, Matsuo, A, Sari, DP, Asih, R, Okunishi, K, Nakano, T, Nozue, Y, Kindo, K, Watanabe, I & Kambe, T 2018, 'Magnetism and high-magnetic field magnetization in alkali superoxide CsO2 ', Journal of the Physical Society of Japan, vol. 87, no. 6, 063704-1. https://doi.org/10.7566/JPSJ.87.063704
Miyajima, Mizuki ; Astuti, Fahmi ; Kakuto, Takeshi ; Matsuo, Akira ; Sari, Dita Puspita ; Asih, Retno ; Okunishi, Kouichi ; Nakano, Takehito ; Nozue, Yasuo ; Kindo, Koichi ; Watanabe, Isao ; Kambe, Takashi. / Magnetism and high-magnetic field magnetization in alkali superoxide CsO2 In: Journal of the Physical Society of Japan. 2018 ; Vol. 87, No. 6.
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AU - Kakuto, Takeshi

AU - Matsuo, Akira

AU - Sari, Dita Puspita

AU - Asih, Retno

AU - Okunishi, Kouichi

AU - Nakano, Takehito

AU - Nozue, Yasuo

AU - Kindo, Koichi

AU - Watanabe, Isao

AU - Kambe, Takashi

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