FERROUS COMPOUND, SUPERCONDUCTION WIRE, AND METHOD FOR PRODUCING FERROUS COMPOUND

To provide a ferrous compound that can reduce variations in superconducting transition temperature T.SOLUTION: In a ferrous compound (10) represented by chemical formula AA'FeAs, A is La and Na, and the A' is at least one element selected from Rb and Cs. The ferrous compound (10) has a cry...

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Main Authors IYO AKIRA, YOSHIDA YOSHIYUKI, GOTO YOSHITO, FUJIHISA YUJI, ISHIDA SHIGEYUKI, KAWASHIMA KENJI, EISAKI HIROSHI
Format Patent
LanguageEnglish
Japanese
Published 28.03.2019
Subjects
ALLOYS
BASIC ELECTRIC ELEMENTS
CABLES
CASTING
CHEMISTRY
CONDUCTORS
ELECTRICITY
FERROUS OR NON-FERROUS ALLOYS
INSULATORS
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WORKING METALLIC POWDER
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Summary:To provide a ferrous compound that can reduce variations in superconducting transition temperature T.SOLUTION: In a ferrous compound (10) represented by chemical formula AA'FeAs, A is La and Na, and the A' is at least one element selected from Rb and Cs. The ferrous compound (10) has a crystal structure in which AFeAslayers (16) and A'FeAslayers (17) are alternately laminated, and the space group of the crystal structure is a simple tetragon of P4/mmm.SELECTED DRAWING: Figure 1 【課題】超伝導転移温度ＴＣのばらつきを抑制可能な鉄系化合物を提供する。【解決手段】化学式ＡＡ'Ｆｅ４Ａｓ４で表される鉄系化合物（１０）において、ＡはＬａ及びＮａであり、上記Ａ'はＲｂ及びＣｓから選ばれる少なくとも１つの元素である。鉄系化合物（１０）は、ＡＦｅ２Ａｓ２層（１６）とＡ'Ｆｅ２Ａｓ２層と（１７）とが交互に積層した結晶構造を有し、その結晶構造の空間群は、単純正方晶Ｐ４／ｍｍｍである。【選択図】図１
Bibliography:Application Number: JP20170173543