Journal ArticleDOI
Itinerant electron metamagnetism in AFe4Sb12 (A=Ca,Sr,Ba)
Shunsuke Yoshii,Eiichi Matsuoka,Katsuyuki Hayashi,Toshiro Takabatake,Masayuki Hagiwara,K. Kindo +5 more
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In this paper, the properties of the alkaline earth filled skutterudite AFe4Sb12 (A = Ca, Sr, Ba ) were investigated by high-field magnetization measurements in a pulsed magnetic field.Abstract:
Magnetic properties of the alkaline earth filled skutterudite AFe4Sb12 ( A = Ca , Sr , Ba ) , which are located in a proximity to a ferromagnetic instability, have been investigated by the high-field magnetization measurements in a pulsed magnetic field. At 1.3 K, in CaFe4Sb12, a metamagnetic increase of magnetization appears at 13 T where M reaches about 0.25 μ B / Fe . This metamagnetic anomaly weakens and the critical field shifts to a lower field in sequence of A = Ca , Sr , Ba . The temperature variation of the metamagnetism has also been investigated, and the results are discussed in relation to the ferromagnetic instability.read more
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Journal ArticleDOI
Magnetic, thermal, and electronic properties of iron-antimony filled skutterudites MFe4Sb12 (M = Na, K, Ca, Sr, Ba, La, Yb)
Walter Schnelle,Andreas Leithe-Jasper,H. Rosner,Raul Cardoso-Gil,Roman Gumeniuk,Dmytro M. Trots,J. A. Mydosh,Yu. Grin +7 more
TL;DR: In this article, the magnetic susceptibility, field-dependent heat capacity, and electrical transport properties (resistivity and Hall effect) were investigated for filled skutterudites with $M{Fe}}_{4}{\mathrm{Sb}}_{12}
Book ChapterDOI
Chapter One Magnetic Properties of Filled Skutterudites
TL;DR: Filled skutterudite compounds with a chemical formula AT4X12 (A= rare earth, actinide, alkaline, or alkaline earth elements; T =Co, Ni, Rh, etc; X= pnictogen) have been intensively investigated, since they exhibit variety of attractive features by replacing the constituent elements within the same crystal structure.
Journal ArticleDOI
Unusual Suppression of Low Energy Spin Excitations near Fermi Level in AFe4Sb12 (A=Ca, Sr, and Ba) Probed by Sb-NQR
Masahiro Matsumura,Genki Hyoudou,Machiko Itoh,Harukazu Kato,Takashi Nishioka,Eiichi Matsuoka,Hideki Tou,T. Takabatake,Masafumi Sera +8 more
TL;DR: In this article, the authors show that 1/T 1 T 1 T is consistent with the selfconsistent renormalization (SCR) theory for the three-dimensional (3D) nearly ferromagnet despite the relatively large contribution of the first term not correlating to χ spin.
Journal ArticleDOI
Magnetic properties, electronic structure, and optical properties of the filled skutterudite BaFe4Sb12
TL;DR: In this paper, the magnetic properties, electronic structure, and optical properties of the filled skutterudite BaFe 4 Sb 12 are calculated by the first-principles full-potential linearized augmented plane wave (FPLAPW) plus local orbital method.
References
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Journal ArticleDOI
Metamagnetic transition and susceptibility maximum in an itinerant-electron system.
TL;DR: The present theory can explain qualitatively these anomalous magnetic properties observed in Co compounds Co(S,Se,Se${)}_{2}$, ${\mathrm{YCo}}_{2}, ${\ mathrm{LuCo}$, and others.
Journal ArticleDOI
Magnetic properties of alkaline earth and lanthanoid iron antimonides AFe4Sb12 (A = Ca, Sr, Ba, LaNd, Sm, Eu) with the LaFe4P12 structure
TL;DR: The magnetic properties of the nine title compounds were studied by magnetic susceptibility measurements with a SQUID magnetometer between 2 and 300 K as mentioned in this paper, with the exception of the cerium and samarium compounds showing Curie-Weiss behavior.
Journal ArticleDOI
Itinerant electron metamagnetism and peculiar magnetic properties observed in 3d and 5f intermetallics
TL;DR: In this paper, a review on the recent advances in theoretical and experimental studies of itinerant electron metamagnetism (IEM) found in 3d and 5f intermetallic compounds without magnetic rare-earth elements is presented.
Journal ArticleDOI
Ferromagnetic ordering in alkali-metal iron antimonides: NaFe4Sb12 and KFe4Sb12.
Andreas Leithe-Jasper,Walter Schnelle,Helge Rosner,N. Senthilkumaran,A. Rabis,Michael Baenitz,A. A. Gippius,E. N. Morozova,J. A. Mydosh,Yuri Grin +9 more
TL;DR: New alkali-metal compounds with the filled-skutterudite structure were synthesized and their chemical and physical properties investigated, demonstrating NaFe4Sb12 to be ferromagnetic below approximately 85 K and to exhibit an additional magnetic anomaly around 40 K.
Journal ArticleDOI
Nearly ferromagnetic metals AFe4Sb12 (A = Ca, Sr, and Ba)
Eiichi Matsuoka,Katsuyuki Hayashi,Akiko Ikeda,Kazue Tanaka,Toshiro Takabatake,Masahiro Matsumura +5 more
TL;DR: The magnetic, transport and thermal properties of alkaline-earth-filled skutterudites are investigated in this article, where the authors show that three compounds show maximum magnetic susceptibility and thermoprocessor properties.