Journal ArticleDOI
Simultaneous observation of heat capacity and magnetic susceptibility of a genuine organic ferromagnet under high pressures
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TLDR
In this article, the magnetic interactions in β-phase p-NPNN (p-nitrophenyl nitronyl nitroxide), a prototype genuine organic ferromagnet, have been studied by simultaneous measurements of magnetic heat capacity and susceptibility under hydrostatic pressures.About:
This article is published in Thermochimica Acta.The article was published on 1995-11-15. It has received 3 citations till now. The article focuses on the topics: Curie constant & Curie–Weiss law.read more
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Book ChapterDOI
6 – The Magnetism of π-Orbitals under Pressure
K. Takeda,M. Mito +1 more
TL;DR: In this paper, a review of typical pressure effects on genuine organic magnetic compounds is presented, where the authors consider the effect of the overlap of the π-orbitals or the transfer integrals under the pressure.
References
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Journal ArticleDOI
Organic and Organometallic Molecular Magnetic Materials—Designer Magnets
Joel S. Miller,Arthur J. Epstein +1 more
TL;DR: In this paper, a tutorial of typical magnetic behavior of molecular materials is presented and three distinct models (intramolecular spin coupling through orthogonal orbitals in the same spatial region within a molecule/ion, intermolecular spins coupling through pairwise configuration interaction between spin-containing moieties, and dipole-dipole, through-space interactions) which enable the design of new molecular-based magnetic materials are discussed.
Journal ArticleDOI
Bulk ferromagnetism in the β-phase crystal of the p-nitrophenyl nitronyl nitroxide radical
Masafumi Tamura,Yasuhiro Nakazawa,Daisuke Shiomi,Kiyokazu Nozawa,Yuko Hosokoshi,Masayasu Ishikawa,Minuro Takahashi,Minoru Kinoshita +7 more
TL;DR: In this paper, the transition to a ferromagnetic long-range ordered state was found at 0.60 K in the orthorhombic β-phase crystal of p-nitrophenyl nitronyl nitroxide.
Journal ArticleDOI
A ferromagnetic transition at 1.48 K in an organic nitroxide
TL;DR: In this paper, the existence of a ferromagnetic transition in a purely organic, non-ionic material with a Curie temperature of 1.48 ± 0.02 K was reported.
Journal ArticleDOI
Low-temperature magnetic properties of the ferromagnetic organic radical, p-nitrophenyl nitronyl nitroxide.
Yusuke Nakazawa,Masafumi Tamura,N. Shirakawa,Daisuke Shiomi,Minoru Takahashi,M. Kinoshita,Masayasu Ishikawa +6 more
TL;DR: Low-temperature magnetic properties of the p-nitrophenyl nitronyl nitroxide phases of p-NPNN were determined by measuring the specific heat, the magnetic susceptibility, and the hysteresis curve of magnetization above $^{3}\mathrm{He}$ temperature in external magnetic fields.
Journal ArticleDOI
Ferromagnetic intermolecular interaction in the galvinoxyl radical: Cooperation of spin polarization and charge-transfer interaction
TL;DR: In this paper, the orbital energies and intermolecular overlap integrals of the galvinoxyl radical were calculated and it was shown that the ferromagnetic intermolescular interaction in the radical can be qualitatively interpreted by a combined effect of spin polarization within the radical and charge transfer interaction between the radicals.