Title:
MAGNETIC MATERIAL AND MAGNETIC ELEMENT
Document Type and Number:
WIPO Patent Application WO/2019/160080
Kind Code:
A1
Abstract:
According to the present invention, a magnetic material having a higher Curie temperature can be achieved. This magnetic material is made of Sr3-xAxOs1-yByO6 (-0.5≤x≤0.5, -0.5≤y≤0.5, A is an alkali metal or an alkali earth metal, and B is a transition metal atom, an alkali metal atom or an alkali earth metal atom) and is composed of an insulator of a double perovskite structure having ferromagnetism or ferrimagnetism. The insulator may be Sr3OsO6, in which x=y=0 is in the formula. Sr3OsO6 has a cubic crystal structure in which a strontium atom 101, an osmium atom 102, and an oxygen atom 103 are arranged on lattice points.
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Inventors:
WAKABAYASHI YUKI (JP)
KROCKENBERGER YOSHIHARU (JP)
YAMAMOTO HIDEKI (JP)
TANIYASU YOSHITAKA (JP)
KROCKENBERGER YOSHIHARU (JP)
YAMAMOTO HIDEKI (JP)
TANIYASU YOSHITAKA (JP)
Application Number:
PCT/JP2019/005561
Publication Date:
August 22, 2019
Filing Date:
February 15, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H01F10/10; H01L21/8239; H01L27/105; H01L29/82; H01L43/08; H01L43/10
Other References:
FAIZAN,M ET AL.: "First-principles study of the double perovskites Sr2X0s06 (X=Li, Na, Ca) for spintoronics applications", BULL. MATER. SCI., vol. 39, no. 6, October 2016 (2016-10-01), pages 1419 - 1425, XP036075262, doi:10.1007/s12034-016-1288-6
MOHITKAR, SHRIKANT A. ET AL.: "Sr2OsO5 and Sr7Os4O19, Two Structurally Related, Mott Insulating Osmates(VI) Exhibiting Substantially Reduced Spin Paramagnetic Response", INORG. CHEM., vol. 55, no. 16, 15 August 2016 (2016-08-15), pages 8201 - 8206, XP055634609
MOHITKAR, SHRIKANT A. ET AL.: "Sr2OsO5 and Sr7Os4O19, Two Structurally Related, Mott Insulating Osmates(VI) Exhibiting Substantially Reduced Spin Paramagnetic Response", INORG. CHEM., vol. 55, no. 16, 15 August 2016 (2016-08-15), pages 8201 - 8206, XP055634609
Attorney, Agent or Firm:
YAMAKAWA, Shigeki et al. (JP)
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