Výsledky vyhledávání - "Astuti, Fahmi"

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Spin-gap formation due to spin-Peierls instability in $\pi$-orbital-ordered NaO$_2$

Autor: Miyajima, Mizuki, Astuti, Fahmi, Fukuda, Takahito, Kodani, Masashi, Iida, Shinsuke, Asai, Shinichiro, Matsuo, Akira, Masuda, Takatsugu, Kindo, Koichi, Hasegawa, Takumi, Kobayashi, Tatsuo C, Nakano, Takehito, Watanabe, Isao, Kambe, Takashi

Publikováno v: Phys. Rev. B 104, 140402 (2021)

We have investigated the low-temperature magnetism of sodium superoxide (NaO$_{2}$), in which spin, orbital, and lattice degrees of freedom are closely entangled. The magnetic susceptibility shows anomalies at $T_{1}=220$ K and $T_{2}=190$ K, which c

Externí odkaz: http://arxiv.org/abs/2107.01783

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Akademický článek

Employing Na2CO3 and NaCl as sources of sodium in NaFePO4 cathode: A comparative study on structure and electrochemical properties.

Autor: Astuti, Fahmi¹ (AUTHOR), Azmi, Rima Feisy¹ (AUTHOR), Azhar, Mohammad Arrafi¹ (AUTHOR), Rayanisaputri, Fani Rahayu Hidayah¹ (AUTHOR), Ramadhan, Muhammad Redo² (AUTHOR), Baqiya, Malik Anjelh¹ (AUTHOR), Darminto¹ (AUTHOR) darminto@physics.its.ac.id

Publikováno v: AIMS Materials Science. 2024, Vol. 11 Issue 1, p1-12. 12p.

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Magnetism and high-magnetic field magnetization in alkali superoxide CsO2

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

Publikováno v: J. Phys. Soc. Jpn., Vol.87, No.6, 063704 (2018)

Alkali superoxide CsO2 is one of candidates for the spin-1/2 one-dimensional (1D) antiferromagnet, which may be sequentially caused by an ordering of the pi-orbital of O2- molecule below TS ~ 70 K. Here, we report on the magnetism in powder CsO2 and

Externí odkaz: http://arxiv.org/abs/1804.00377

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