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

doi:10.7566/JPSJ.87.063704

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

^*Corresponding author for this work

Okayama University
RIKEN
Hokkaido University
The University of Tokyo
The University of Osaka
Niigata University

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

5 Citations (Scopus)

Abstract

Alkali superoxide CsO₂ is one of the candidates for the spin-¹₂ one-dimensional (1D) antiferromagnet, which may be sequentially formed by an ordering of the π-orbital of O₂ molecule below T_S ∼ 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 T_N = 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-¹₂. In this study we compare it with the theoretical calculation.

Original language	English
Article number	063704-1
Journal	Journal of the Physical Society of Japan
Volume	87
Issue number	6
DOIs	https://doi.org/10.7566/JPSJ.87.063704
Publication status	Published - 2018
Externally published	Yes

Access to Document

10.7566/JPSJ.87.063704

Cite this

@article{253f335befe74cb9b6560a7cba901612,

title = "Magnetism and high-magnetic field magnetization in alkali superoxide CsO2",

abstract = "Alkali superoxide CsO2 is one of the candidates for the spin-12 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-12. In this study we compare it with the theoretical calculation.",

author = "Mizuki Miyajima and Fahmi Astuti and Takeshi Kakuto and Akira Matsuo and Sari, \{Dita Puspita\} and Retno Asih and Kouichi Okunishi and Takehito Nakano and Yasuo Nozue and Koichi Kindo and Isao Watanabe and Takashi Kambe",

note = "Publisher Copyright: {\textcopyright} 2018 The Physical Society of Japan.",

year = "2018",

doi = "10.7566/JPSJ.87.063704",

language = "English",

volume = "87",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "The Physical Society of Japan",

number = "6",

}

TY - JOUR

T1 - Magnetism and high-magnetic field magnetization in alkali superoxide CsO2

AU - Miyajima, Mizuki

AU - Astuti, Fahmi

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

PY - 2018

Y1 - 2018

N2 - Alkali superoxide CsO2 is one of the candidates for the spin-12 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-12. In this study we compare it with the theoretical calculation.

AB - Alkali superoxide CsO2 is one of the candidates for the spin-12 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-12. In this study we compare it with the theoretical calculation.

UR - https://www.scopus.com/pages/publications/85046886914

U2 - 10.7566/JPSJ.87.063704

DO - 10.7566/JPSJ.87.063704

M3 - Article

AN - SCOPUS:85046886914

SN - 0031-9015

VL - 87

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - 6

M1 - 063704-1

ER -

Magnetism and high-magnetic field magnetization in alkali superoxide CsO₂

Abstract

Access to Document

Other files and links

Fingerprint

Cite this