New Layered Perovskite Vanadium Oxide with Negative Magnetization

1992 ◽  
Vol 275 ◽  
Author(s):  
Noburu Fukushima ◽  
Shiro Takeno ◽  
Shigenori Tanaka ◽  
Ken Ando
Keyword(s):  
Magnetic Field ◽  
Crystal Structure ◽  
Magnetic Properties ◽  
Vanadium Oxide ◽  
Unit Cell ◽  
Layered Perovskite ◽  
Negative Magnetization

ABSTRACTA new layered perovskite vanadium oxide Sr4V3O8-d was synthesized and its crystal structure and magnetic properties were studied. Sr4V3O8-d has a novel crystal structure, containing a V-0 octahedron and a two-fold V-0 fence in a unit cell. It exhibits negative magnetization below 30 K. when cooled in a magnetic field. This peculiar magnetism is attributed to N-type parasitic ferrimagnetism.

Synthesis, crystal structure and magnetic properties of the Sr2Al0.78Mn1.22O5.2 anion-deficient layered perovskite

2009 ◽  
Vol 182 (2) ◽  
pp. 356-363 ◽  
Author(s):  
Hans D’Hondt ◽  
Joke Hadermann ◽  
Artem M. Abakumov ◽  
Anna S. Kalyuzhnaya ◽  
Marina G. Rozova ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Layered Perovskite

scholarly journals Crystal Structure and Magnetic Properties of the Carbon-based Ferromagnet Prepared by Pyrolytic Method under High Magnetic Field

2011 ◽  
Vol 58 (3) ◽  
pp. 176-180
Author(s):  
Takashi Tokue ◽  
Kenji Kamishima ◽  
Daisuke Miyata ◽  
Yuki Sato ◽  
Koichi Kakizaki ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Crystal Structure ◽  
Magnetic Properties ◽  
High Magnetic Field ◽  
Carbon Based

ChemInform Abstract: Synthesis, Crystal Structure and Magnetic Properties of Bixbyite-Type Vanadium Oxide Nitrides.

ChemInform ◽  
2009 ◽  
Vol 40 (22) ◽  
Author(s):  
Suliman Nakhal ◽  
Wilfried Hermes ◽  
Thorsten Ressler ◽  
Rainer Poettgen ◽  
Martin Lerch
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Vanadium Oxide

High-Pressure Synthesis, Crystal Structure, and Magnetic Properties of Sr2MnO3F: A New Member of Layered Perovskite Oxyfluorides

2016 ◽  
Vol 55 (5) ◽  
pp. 2627-2633 ◽  
Author(s):  
Yu Su ◽  
Yoshihiro Tsujimoto ◽  
Yoshitaka Matsushita ◽  
Yahua Yuan ◽  
Jianfeng He ◽  
...  
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Magnetic Properties ◽  
Layered Perovskite ◽  
High Pressure Synthesis ◽  
Pressure Synthesis

New Layered Perovskite Vanadium Oxide with Negative Magnetization

1992 ◽  
pp. 283-286
Author(s):  
Noburu Fukushima ◽  
Shiro Takeno ◽  
Shigenori Tanaka ◽  
Ken Ando
Keyword(s):  
Vanadium Oxide ◽  
Layered Perovskite ◽  
Negative Magnetization

Lattice deformation and magnetic properties in epitaxial thin films of Sr1-xBaxRuO3

1997 ◽  
Vol 494 ◽  
Author(s):  
Noburu Fukushima ◽  
Kenya Sano ◽  
Tatsuo Schimizu ◽  
Kazuhide Abe ◽  
Shuichi Komatsu
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Layered Perovskite ◽  
Lattice Deformation ◽  
Epitaxial Thin Films ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Tetragonal Lattice ◽  
Cubic Structure ◽  
Ferromagnetic Ordering

ABSTRACTThe crystal structure and magnetic properties in epitaxially grown Sr1-xBaxRuO3 on SrTiO3 substrates were determined. Epitaxial Sr1-xBaxRuO3 exhibits a simple perovskite structure in the whole region of Ba/Sr ratio, in contrast to a complex hexagonal layered perovskite in the case of Ba-rich bulk Sr1-xBaxRuO3 which has plane-sharing oxygen octahedra. Tetragonal deformation was enhanced from the pseudo cubic structure of SrRuO3 to a highly distorted tetragonal lattice in BaRu03. Electronic properties such as conductivity and magnetization were examined and compared to the results of band calculation in which a tetragonal distortion was taken into account. A metal-insulator transition was not observed in this system either in the experiment or in the simulation, and metallic conductivity was maintained in the whole region of Ba content. The ferromagnetic ordering which occurs at 160K in pseudo-cubic bulk SrRuO3 was suppressed in Sr1-xBaxRuO3 films with increasing tetragonal deformation and Curie temperature decreased to 50K in BaRuO3.

Structure and magnetic properties of Fe1.14Cr1.86Se4 ferrimagnet: Negative magnetization and its dependence on magnetic field

2012 ◽  
Vol 324 (7) ◽  
pp. 1419-1424 ◽  
Author(s):  
Volodymyr Svitlyk ◽  
Tyler Russell ◽  
Taras Kolodiazhnyi ◽  
Yurij Mozharivskyj
Keyword(s):  
Magnetic Field ◽  
Magnetic Properties ◽  
Negative Magnetization

Synthese und Kristallstruktur von MoCl4(DME) · 15-Krone-5 und MoCl4(DME) (DME = 1,2-Dimethoxyethan) / Synthesis and Crystal Structure of MoCl4(DME) · 15-Crown-5 and MoCl4(DME) (DME = 1,2-Dimethoxyethane)

1991 ◽  
Vol 46 (3) ◽  
pp. 307-314 ◽  
Author(s):  
Evamarie Hey-Hawkins ◽  
Hans Georg von Schnering
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Structure Determination ◽  
Unit Cell ◽  
Crystal Data ◽  
Synthesis And Crystal Structure ◽  
Space Group ◽  
X Ray ◽  
Cell Dimensions ◽  
Work Up

NaSi reacts with MoCl5 and 15-crown-5 in toluene with reduction of Mo(V) to Mo(IV). Work-up in DME yields MoCl4(DME)· 15-crown-5 (1). MoCl4(DME) (2) is prepared more conveniently from MoCl5/DME. 1 and 2 were characterized spectroscopically and by X-ray structure determination. Crystal data: 1, space group P212121 (No. 19), Z = 4, 2765 observed independent reflexions, R = 0.026, cell dimensions (110 K): a = 16.292(4), b = 12.884(3), c = 10.452(2) Å. 2, space group I4̄2d (No. 122), Z = 8, 558 observed independent reflexions, R = 0.037, cell dimensions (292 K): a = b = 9.562(2), c = 23.777(6)Å. The MoCl4(DME) molecule of 1 and 2 forms a distorted octahedron. There are four non-coordinating 15-crown-5 molecules present in the unit cell of 1. The UV/VIS spectrum and the magnetic properties of 2 are discussed.

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