KR101477989B1 - 자성체를 포함하는 초전도 박막 - Google Patents
자성체를 포함하는 초전도 박막 Download PDFInfo
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- KR101477989B1 KR101477989B1 KR20140071219A KR20140071219A KR101477989B1 KR 101477989 B1 KR101477989 B1 KR 101477989B1 KR 20140071219 A KR20140071219 A KR 20140071219A KR 20140071219 A KR20140071219 A KR 20140071219A KR 101477989 B1 KR101477989 B1 KR 101477989B1
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- 239000010409 thin film Substances 0.000 title abstract description 45
- 239000002887 superconductor Substances 0.000 title description 11
- 239000000696 magnetic material Substances 0.000 title description 2
- 239000002885 antiferromagnetic material Substances 0.000 claims abstract description 31
- 239000000758 substrate Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 5
- 229910002480 Cu-O Inorganic materials 0.000 claims description 5
- 229910052727 yttrium Inorganic materials 0.000 claims description 5
- 241000954177 Bangana ariza Species 0.000 claims description 3
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 3
- 229910052691 Erbium Inorganic materials 0.000 claims description 3
- 229910052693 Europium Inorganic materials 0.000 claims description 3
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 3
- 229910052689 Holmium Inorganic materials 0.000 claims description 3
- 229910010701 LiFeP Inorganic materials 0.000 claims description 3
- 229910052779 Neodymium Inorganic materials 0.000 claims description 3
- 229910052772 Samarium Inorganic materials 0.000 claims description 3
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 3
- 229910052788 barium Inorganic materials 0.000 claims description 3
- 229910052797 bismuth Inorganic materials 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 229910052745 lead Inorganic materials 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 229910052712 strontium Inorganic materials 0.000 claims description 3
- 229910002367 SrTiO Inorganic materials 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000003302 ferromagnetic material Substances 0.000 abstract description 33
- 230000005294 ferromagnetic effect Effects 0.000 abstract description 21
- 230000005291 magnetic effect Effects 0.000 description 54
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 7
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- 239000002907 paramagnetic material Substances 0.000 description 2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
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- Superconductor Devices And Manufacturing Methods Thereof (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
도 2는 본 발명에 따른 초전도 박막에 반강자성체를 도입하는 경우 외부 자기장에 따른 자기력선을 나타낸 모식도이다.
도 3 내지 도 5는 본 발명에 따른 자성체를 포함하는 초전도 박막을 나타낸 모식도이다.
300, 300', 300'', 600, 600': 기판
200, 200', 500, 500', 500'', 800, 800': 강자성체 또는 반강자성체
Claims (7)
- 초전도층 및 상기 초전도층 상부 또는 내부에 2 - 20 nm 간격으로 형성된 섬(island) 또는 점(dot) 형상의 1 - 200 nm2 면적의 반강자성체를 포함하고,
상기 반강자성체는 Mn5Si3, CeAl3, CeCu6, Sr2RuO4 및 La2CuO4로 이루어진 군으로부터 선택되는 1종인 것을 특징으로 하는 초전도 박막.
- 기판; 상기 기판 상부에 형성된 초전도층; 및 상기 초전도층 상부 또는 내부에 형성된 반강자성체;를 포함하고,
상기 반강자성체는 2 - 20 nm 간격으로 1 - 200 nm2 면적의 섬 또는 점 형상으로 형성되며,
상기 반강자성체는 Mn5Si3, CeAl3, CeCu6, Sr2RuO4 및 La2CuO4로 이루어진 군으로부터 선택되는 1종인 것을 특징으로 하는 초전도 박막.
- 기판; 기판 상부의 초전도층; 및 상기 기판 상부 또는 내부에 형성된 반강자성체;를 포함하고,
상기 반강자성체는 2 - 20 nm 간격으로 1 - 200 nm2 면적의 섬 또는 점 형상으로 형성되며,
상기 반강자성체는 Mn5Si3, CeAl3, CeCu6, Sr2RuO4 및 La2CuO4로 이루어진 군으로부터 선택되는 1종인 것을 특징으로 하는 초전도 박막.
- 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 초전도층은 MgB2, NbSe2, NbTi, Nb3Sn, LaFeAsO, SmFeAsO, PrFeAsO, BaFe2As2, SrFe2As2, CaFe2As2, LiFeAs, NaFeAs, LiFeP, Bi-Ae-Cu-O, (Bi,Pb)-Ae-Cu-O, (Y,Re)-Ae-Cu-O 및 ReBa2Cu3O7(상기 Ae는 Mg, Ca, Sr 및 Ba로 이루어진 군으로부터 선택되는 1종 이상이고, 상기 Re는 Y, Nd, Sm, Eu, Gd, Dy, Ho, Er, Yb로 이루어진 군으로부터 선택되는 1종임)로 이루어진 군으로부터 선택되는 1종인 것을 특징으로 하는 초전도 박막.
- 삭제
- 삭제
- 제2항 내지 제3항 중 어느 한 항에 있어서,
상기 기판은 ZrO2, SrTiO3, MgO, Al2O3 및 CeO2로 이루어진 군으로부터 선택되는 1종인 것을 특징으로 하는 초전도 박막.
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3049125U (ja) * | 1997-04-14 | 1998-06-02 | 香司 花木 | 非超電導相を幾何学的に分散分布させた超電導導体 |
JP2001044025A (ja) * | 1999-07-29 | 2001-02-16 | Alps Electric Co Ltd | グラニュラー硬磁性薄膜及びグラニュラー硬磁性薄膜の製造方法 |
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Patent Citations (2)
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JP3049125U (ja) * | 1997-04-14 | 1998-06-02 | 香司 花木 | 非超電導相を幾何学的に分散分布させた超電導導体 |
JP2001044025A (ja) * | 1999-07-29 | 2001-02-16 | Alps Electric Co Ltd | グラニュラー硬磁性薄膜及びグラニュラー硬磁性薄膜の製造方法 |
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