JPWO2015045733A1 - 鉄系超電導物質及びその製造方法 - Google Patents
鉄系超電導物質及びその製造方法 Download PDFInfo
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- JPWO2015045733A1 JPWO2015045733A1 JP2015539039A JP2015539039A JPWO2015045733A1 JP WO2015045733 A1 JPWO2015045733 A1 JP WO2015045733A1 JP 2015539039 A JP2015539039 A JP 2015539039A JP 2015539039 A JP2015539039 A JP 2015539039A JP WO2015045733 A1 JPWO2015045733 A1 JP WO2015045733A1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/007—Preparing arsenides or antimonides, especially of the III-VI-compound type, e.g. aluminium or gallium arsenide
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C24/00—Alloys based on an alkali or an alkaline earth metal
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H10N60/00—Superconducting devices
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- H—ELECTRICITY
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Abstract
Description
[比較例1]
Claims (3)
- 化学式Ca1-xRxFeAs2で示され、CaFeAs2型で、空間群P21の結晶構造を有し、Rは、La、Ce、Pr、Ndから選ばれる少なくとも1つの軽希土類元素であり、原子比xが0.08≦x≦0.24であることを特徴とする超電導物質。
- 前記CaFeAs2型構造は、FeAs層とCa1-xRxAs層の交互積層構造であり、Ca1-xRxAs層が、Ca1-xRx層−As2層−Ca1-xRx層の3層からなる層間物質であり、Rは、La、Ce、Pr、Ndから選ばれる少なくとも1つの軽希土類元素であり、Rをドープすることにより前記超電導物質となることを特徴とする層状化合物。
- 原料として、Caの粒又は粉末、前記R元素の粒又は粉末、FeAsの粒又は粉末、Asの粒又は粉末を組成比がCa1-xRxFeAs2(ただし、0.08≦x≦0.24)となるように秤量し、混合し、混合粒又は混合粉末を不活性雰囲気又は真空中、1050℃〜1100℃で溶融して合成反応させることを特徴とする請求項1に記載の超電導物質の製造法。
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JP2013199997 | 2013-09-26 | ||
JP2013199997 | 2013-09-26 | ||
PCT/JP2014/072770 WO2015045733A1 (ja) | 2013-09-26 | 2014-08-29 | 鉄系超電導物質及びその製造方法 |
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JPWO2015045733A1 true JPWO2015045733A1 (ja) | 2017-03-09 |
JP6403123B2 JP6403123B2 (ja) | 2018-10-10 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009104611A1 (ja) * | 2008-02-18 | 2009-08-27 | 独立行政法人科学技術振興機構 | 超伝導化合物及びその製造方法 |
JP2009234847A (ja) * | 2008-03-27 | 2009-10-15 | Japan Science & Technology Agency | 層状化合物からなる超伝導体及びその製造方法 |
WO2010007929A1 (ja) * | 2008-07-16 | 2010-01-21 | 独立行政法人科学技術振興機構 | 層状化合物及び超伝導体並びにそれらの製造方法 |
WO2012018850A1 (en) * | 2010-08-03 | 2012-02-09 | Brookhaven Science Associates, Llc | Iron based superconducting structures and methods for making the same |
JP2012066960A (ja) * | 2010-09-22 | 2012-04-05 | Okayama Univ | 鉄系超伝導体及びその製造方法 |
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2014
- 2014-08-29 JP JP2015539039A patent/JP6403123B2/ja not_active Expired - Fee Related
- 2014-08-29 WO PCT/JP2014/072770 patent/WO2015045733A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009104611A1 (ja) * | 2008-02-18 | 2009-08-27 | 独立行政法人科学技術振興機構 | 超伝導化合物及びその製造方法 |
JP2009234847A (ja) * | 2008-03-27 | 2009-10-15 | Japan Science & Technology Agency | 層状化合物からなる超伝導体及びその製造方法 |
WO2010007929A1 (ja) * | 2008-07-16 | 2010-01-21 | 独立行政法人科学技術振興機構 | 層状化合物及び超伝導体並びにそれらの製造方法 |
WO2012018850A1 (en) * | 2010-08-03 | 2012-02-09 | Brookhaven Science Associates, Llc | Iron based superconducting structures and methods for making the same |
JP2012066960A (ja) * | 2010-09-22 | 2012-04-05 | Okayama Univ | 鉄系超伝導体及びその製造方法 |
Non-Patent Citations (1)
Title |
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J. H. SHIM ET AL.: "Density-functional calculations of the electronic structures and magnetism of the pnictide supercond", PHYSICAL REVIEW B, vol. Vol.79, JPN6014049916, 2 February 2009 (2009-02-02), US, pages p.060501-1−060501-4 * |
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JP6403123B2 (ja) | 2018-10-10 |
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