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维基百科

鐵基超導體

十二月 30, 2023

鐵基超導體是指化合物中含有鐵，在低溫時具有超導現象，且鐵扮演形成超導的主體的材料。2006年日本東京工業大學細野秀雄教授的團隊發現第一個以鐵為超導主體的化合物LaFeOP[1]，打破以往普遍認定鐵元素不利形成超導迷思。

LnFePnO的晶體結構，它是ferropnictide化合物之一。

根據BCS理論，產生超導性的必要條件是材料中的電子必須配對，這樣配對的電子稱為庫柏對。庫柏對中的兩個電子自旋相反，所以總自旋為零，因而科學家認為超導性與鐵磁性可能無法共存，材料中如果加入磁性元素（如鐵、鎳）會大大降低超導性。鐵基超導體雖然含有鐵元素且是產生超導的主體，但是鐵和其他元素（如砷、硒）形成鐵基平面後，已不再具有鐵磁性。

2008年1月9日，細野秀雄教授的團隊再度發現鐵基層狀材料La[O1-xFx]FeAs（x = 0.05 – 0.12）在絕對溫度26K時存在超導性[2]。2008年2月26日，細野團隊又發現其在絕對溫度43K的超導性[3]。2008年3月28日，中国科学院物理研究所赵忠贤领导的科研小组报告，氟掺杂镨氧铁砷化合物的高温超导临界温度可达52开尔文（零下221.15℃）。4月13日该科研小组又有新发现：氟掺杂钐氧铁砷化合物假如在压力环境下产生作用，其超导临界温度可进一步提升至55开尔文（零下218.15℃）。此外，中科院物理所闻海虎领导的科研小组还报告，锶掺杂镧氧铁砷化合物的超导临界温度为25开尔文（零下248.15℃）。 [4] ，從此研究鐵基超導體便在世界上形成一股熱潮。引起許多科學家的興趣的重要原因之一在於鐵基超導體的結構與高溫超導的銅氧平面類似，超導性發生在鐵基平面上，屬於二維的超導材料。因此儘管鐵基超導體的臨界溫度只有數十K，研究鐵基超導體可能有助於了解高溫超導的機制。

晶格結構 编辑

現有的鐵基超導體從結構上可分為四類：（1111）、（122）、（111） 和 (11)。

氮磷族氧化物
(oxypnictide) 		临界溫度 (K)
LaO0.89F0.11FeAs 26[5]
LaO0.9F0.2FeAs 28.5[6]
CeFeAsO0.84F0.16 41[5]
SmFeAsO0.9F0.1 43[5]
La0.5Y0.5FeAsO0.6 43.1[7]
NdFeAsO0.89F0.11 52[5]
PrFeAsO0.89F0.11 52[8]
ErFeAsO1-y 45[9]
Al-32522 (CaAlOFeAs) 30(As), 16.6 (P)[10]
Al-42622 (CaAlOFeAs) 28.3(As), 17.2 (P)[11]
GdFeAsO0.85 53.5[12]
BaFe1.8Co0.2As2 25.3[13]
SmFeAsO~0.85 55[14]
非氮磷族氧化物
(non-oxypnictide) 		临界溫度 (K)
Ba0.6K0.4Fe2As2 38[15]
Ca0.6Na0.4Fe2As2 26[16]
CaFe0.9Co0.1AsF 22[17]
Sr0.5Sm0.5FeAsF 56[18]
LiFeAs <18 [19] [20][21]
NaFeAs 9–25[22][23]
FeSe <27[24][25]

參見 编辑

參考文獻 编辑

  1. ^ Yoichi Kamihara, Hidenori Hiramatsu, Masahiro Hirano, Ryuto Kawamura, Hiroshi Yanagi, Toshio Kamiya, and Hideo Hosono. Iron-Based Layered Superconductor: LaOFeP. Journal of American Chemical Society. 2006, 128 (31): 10012–10013. doi:10.1021/ja063355c. 
  2. ^ . [2015-04-06]. （原始内容存档于2014-07-10）. 
  3. ^ . [2015-04-06]. （原始内容存档于2010-01-05）. 
  4. ^ Yoichi Kamihara, Takumi Watanabe, Masahiro Hirano, and Hideo Hosono. Iron-Based Layered Superconductor La[O1-xFx]FeAs (x = 0.05-0.12) with Tc = 26 K. Journal of American Chemical Society. 2008, 130 (11): 3296–3297. doi:10.1021/ja800073m. 
  5. ^ 5.0 5.1 5.2 5.3 K. Ishida; et al. To What Extent Iron-Pnictide New Superconductors Have Been Clarified: A Progress Report. J. Phys. Soc. Jpn. 2009, 78 (6): 062001. Bibcode:2009JPSJ...78f2001I. arXiv:0906.2045  . doi:10.1143/JPSJ.78.062001.  已忽略未知参数|author-separator= (帮助)
  6. ^ Prakash, J.; Singh, S. J.; Samal, S. L.; Patnaik, S.; Ganguli, A. K. Potassium fluoride doped LaOFeAs multi-band superconductor: Evidence of extremely high upper critical field. EPL (Europhysics Letters). 2008, 84 (5): 57003. Bibcode:2008EL.....8457003P. doi:10.1209/0295-5075/84/57003. 
  7. ^ Shirage, Parasharam M.; Miyazawa, Kiichi; Kito, Hijiri; Eisaki, Hiroshi; Iyo, Akira. Superconductivity at 43 K at ambient pressure in the iron-based layered compound La1‑xYxFeAsOy. Physical Review B. 2008, 78 (17): 172503. Bibcode:2008PhRvB..78q2503S. doi:10.1103/PhysRevB.78.172503. 
  8. ^ Ren, Z. A.; Yang, J.; Lu, W.; Yi, W.; Che, G. C.; Dong, X. L.; Sun, L. L.; Zhao, Z. X. Superconductivity at 52 K in iron based F doped layered quaternary compound Pr[O1–xFx]FeAs. Materials Research Innovations. 2008, 12 (3): 105. doi:10.1179/143307508X333686. 
  9. ^ Shirage, Parasharam M.; Miyazawa, Kiichi; Kihou, Kunihiro; Lee, Chul-Ho; Kito, Hijiri; Tokiwa, Kazuyasu; Tanaka, Yasumoto; Eisaki, Hiroshi; Iyo, Akira. Synthesis of ErFeAsO-based superconductors by the hydrogen doping method. EPL (Europhysics Letters). 2010, 92 (5): 57011. Bibcode:2010EL.....9257011S. arXiv:1011.5022  . doi:10.1209/0295-5075/92/57011. 
  10. ^ Shirage, Parasharam M.; Kihou, Kunihiro; Lee, Chul-Ho; Kito, Hijiri; Eisaki, Hiroshi; Iyo, Akira. Emergence of Superconductivity in "32522" Structure of (Ca3Al2O5–y)(Fe2Pn2) (Pn = As and P). Journal of the American Chemical Society. 2011, 133 (25): 9630–3. PMID 21627302. doi:10.1021/ja110729m. 
  11. ^ Shirage, Parasharam M.; Kihou, Kunihiro; Lee, Chul-Ho; Kito, Hijiri; Eisaki, Hiroshi; Iyo, Akira. Superconductivity at 28.3 and 17.1 K in (Ca[sub 4]Al[sub 2]O[sub 6−y])(Fe[sub 2]Pn[sub 2]) (Pn=As and P). Applied Physics Letters. 2010, 97 (17): 172506. Bibcode:2010ApPhL..97q2506S. arXiv:1008.2586  . doi:10.1063/1.3508957. 
  12. ^ Yang, Jie; Li, Zheng-Cai; Lu, Wei; Yi, Wei; Shen, Xiao-Li; Ren, Zhi-An; Che, Guang-Can; Dong, Xiao-Li; Sun, Li-Ling. Superconductivity at 53.5 K in GdFeAsO1−δ. Superconductor Science and Technology. 2008, 21 (8): 082001. Bibcode:2008SuScT..21h2001Y. doi:10.1088/0953-2048/21/8/082001. 
  13. ^ Yin, Yi; Zech, M.; Williams, T. L.; Wang, X. F.; Wu, G.; Chen, X. H.; Hoffman, J. E. Scanning Tunneling Spectroscopy and Vortex Imaging in the Iron Pnictide Superconductor BaFe_{1.8}Co_{0.2}As_{2}. Physical Review Letters. 2009, 102 (9). Bibcode:2009PhRvL.102i7002Y. arXiv:0810.1048v2  . doi:10.1103/PhysRevLett.102.097002. 
  14. ^ Ren, Zhi-An; Che, Guang-Can; Dong, Xiao-Li; Yang, Jie; Lu, Wei; Yi, Wei; Shen, Xiao-Li; Li, Zheng-Cai; Sun, Li-Ling. Superconductivity and phase diagram in iron-based arsenic-oxides ReFeAsO1−δ (Re = rare-earth metal) without fluorine doping. EPL (Europhysics Letters). 2008, 83: 17002. Bibcode:2008EL.....8317002R. arXiv:0804.2582  . doi:10.1209/0295-5075/83/17002. 
  15. ^ Marianne Rotter, Marcus Tegel, and Dirk Johrendt. Superconductivity at 38 K in the Iron Arsenide (Ba1-xKx)Fe2As2. Physical Review Letters. 2008, 101 (10): 107006. Bibcode:2008PhRvL.101j7006R. PMID 18851249. arXiv:0805.4630  . doi:10.1103/PhysRevLett.101.107006. 
  16. ^ Shirage, Parasharam Maruti; Miyazawa, Kiichi; Kito, Hijiri; Eisaki, Hiroshi; Iyo, Akira. Superconductivity at 26 K in (Ca1-xNax)Fe2As2. Applied Physics Express. 2008, 1: 081702. doi:10.1143/APEX.1.081702. 
  17. ^ Satoru Matsuishi, Yasunori Inoue, Takatoshi Nomura, Hiroshi Yanagi, Masahiro Hirano and Hideo Hosono. . J. Am. Chem. Soc. 2008, 2008 (44): 14428–14429 [2013-09-27]. PMID 18842039. doi:10.1021/ja806357j. （原始内容存档于2020-08-11）. 
  18. ^ G. Wu, Y. L. Xie, H. Chen, M. Zhong, R. H. Liu, B. C. Shi, Q. J. Li, X. F. Wang, T. Wu, Y. J. Yan, J. J. Ying, and X. H. Chen. Superconductivity at 56 K in Samarium-doped SrFeAsF. Journal of Physics: Condensed Matter , (2009). 2008, 21 (3). Bibcode:2008arXiv0811.0761W. arXiv:0811.0761  . 
  19. ^ X. C. Wang, Q. Q. Liu, Y. X. Lv, W. B. Gao, L. X. Yang, R.C. Yu, F. Y. Li, and C. Q. Jin. The superconductivity at 18 K in LiFeAs system. Solid State Commun. 2008, 148: 538. arXiv:0806.4688  . 
  20. ^ Michael J. Pitcher; et al. Structure and superconductivity of LiFeAs. Chem. Commun. 2008, 2008 (45): 5918–5920. PMID 19030538. doi:10.1039/b813153h.  已忽略未知参数|author-separator= (帮助)
  21. ^ Joshua H. Tapp; et al. LiFeAs: An intrinsic FeAs-based superconductor with Tc=18 K. Physical Review B. 2008, 78 (6): 060505(R). Bibcode:2008PhRvB..78f0505T. arXiv:0807.2274  . doi:10.1103/PhysRevB.78.060505.  已忽略未知参数|author-separator= (帮助)
  22. ^ C. W. Chu; et al. The Synthesis and Characterization of LiFeAs and NaFeAs. 2009. arXiv:0902.0806   [cond-mat.supr-con]. 
  23. ^ Dinah R. Parker, Michael J. Pitcher, and Simon J. Clarke. Structure and superconductivity of the layered iron arsenide NaFeAs. Chemical Communications. 2008, 2189 (16): 2189. arXiv:0810.3214  . doi:10.1039/B818911K. 
  24. ^ Fong-Chi Hsu; et al. Superconductivity in the PbO-type structure α-FeSe. PNAS. 2008, 105 (38): 14262–14264. Bibcode:2008PNAS..10514262H. PMC 2531064  . PMID 18776050. doi:10.1073/pnas.0807325105.  已忽略未知参数|author-separator= (帮助)
  25. ^ Yoshikazu Mizuguchi, Fumiaki Tomioka, Shunsuke Tsuda, Takahide Yamaguchi, and Yoshihiko Takano. Superconductivity at 27 K in tetragonal FeSe under high pressure. Appl. Phys. Lett. 2008, 93 (15): 152505. Bibcode:2008ApPhL..93o2505M. arXiv:0807.4315  . doi:10.1063/1.3000616. 

十二月 30, 2023
鐵基超導體, 是指化合物中含有鐵, 在低溫時具有超導現象, 且鐵扮演形成超導的主體的材料, 2006年日本東京工業大學細野秀雄教授的團隊發現第一個以鐵為超導主體的化合物lafeop, 打破以往普遍認定鐵元素不利形成超導迷思, lnfepno的晶體結構, 它是ferropnictide化合物之一, 根據bcs理論, 產生超導性的必要條件是材料中的電子必須配對, 這樣配對的電子稱為庫柏對, 庫柏對中的兩個電子自旋相反, 所以總自旋為零, 因而科學家認為超導性與鐵磁性可能無法共存, 材料中如果加入磁性元素, 如鐵, 會大. 鐵基超導體是指化合物中含有鐵 在低溫時具有超導現象 且鐵扮演形成超導的主體的材料 2006年日本東京工業大學細野秀雄教授的團隊發現第一個以鐵為超導主體的化合物LaFeOP 1 打破以往普遍認定鐵元素不利形成超導迷思 LnFePnO的晶體結構 它是ferropnictide化合物之一 根據BCS理論 產生超導性的必要條件是材料中的電子必須配對 這樣配對的電子稱為庫柏對 庫柏對中的兩個電子自旋相反 所以總自旋為零 因而科學家認為超導性與鐵磁性可能無法共存 材料中如果加入磁性元素 如鐵 鎳 會大大降低超導性 鐵基超導體雖然含有鐵元素且是產生超導的主體 但是鐵和其他元素 如砷 硒 形成鐵基平面後 已不再具有鐵磁性 2008年1月9日 細野秀雄教授的團隊再度發現鐵基層狀材料La O1 xFx FeAs x 0 05 0 12 在絕對溫度26K時存在超導性 2 2008年2月26日 細野團隊又發現其在絕對溫度43K的超導性 3 2008年3月28日 中国科学院物理研究所赵忠贤领导的科研小组报告 氟掺杂镨氧铁砷化合物的高温超导临界温度可达52开尔文 零下221 15 4月13日该科研小组又有新发现 氟掺杂钐氧铁砷化合物假如在压力环境下产生作用 其超导临界温度可进一步提升至55开尔文 零下218 15 此外 中科院物理所闻海虎领导的科研小组还报告 锶掺杂镧氧铁砷化合物的超导临界温度为25开尔文 零下248 15 4 從此研究鐵基超導體便在世界上形成一股熱潮 引起許多科學家的興趣的重要原因之一在於鐵基超導體的結構與高溫超導的銅氧平面類似 超導性發生在鐵基平面上 屬於二維的超導材料 因此儘管鐵基超導體的臨界溫度只有數十K 研究鐵基超導體可能有助於了解高溫超導的機制 晶格結構 编辑現有的鐵基超導體從結構上可分為四類 1111 122 111 和 11 氮磷族氧化物 oxypnictide 临界溫度 K LaO0 89F0 11FeAs 26 5 LaO0 9F0 2FeAs 28 5 6 CeFeAsO0 84F0 16 41 5 SmFeAsO0 9F0 1 43 5 La0 5Y0 5FeAsO0 6 43 1 7 NdFeAsO0 89F0 11 52 5 PrFeAsO0 89F0 11 52 8 ErFeAsO1 y 45 9 Al 32522 CaAlOFeAs 30 As 16 6 P 10 Al 42622 CaAlOFeAs 28 3 As 17 2 P 11 GdFeAsO0 85 53 5 12 BaFe1 8Co0 2As2 25 3 13 SmFeAsO 0 85 55 14 非氮磷族氧化物 non oxypnictide 临界溫度 K Ba0 6K0 4Fe2As2 38 15 Ca0 6Na0 4Fe2As2 26 16 CaFe0 9Co0 1AsF 22 17 Sr0 5Sm0 5FeAsF 56 18 LiFeAs lt 18 19 20 21 NaFeAs 9 25 22 23 FeSe lt 27 24 25 參見 编辑安德烈夫反射 Andreev reflection 高溫超導 近藤效应 磁化帆 氮磷族氧化物 oxypnictide 參考文獻 编辑 Yoichi Kamihara Hidenori Hiramatsu Masahiro Hirano Ryuto Kawamura Hiroshi Yanagi Toshio Kamiya and Hideo Hosono Iron Based Layered Superconductor LaOFeP Journal of American Chemical Society 2006 128 31 10012 10013 doi 10 1021 ja063355c Iron Based Layered Superconductor La O1 xFx FeAs x 0 05 0 12 with Tc 26 K Journal of the American Chemical Society ACS Publications 2015 04 06 原始内容存档于2014 07 10 Access Superconductivity at 43 thinsp K in an iron based layered compound LaO1 xFxFeAs Nature 2015 04 06 原始内容存档于2010 01 05 Yoichi Kamihara Takumi Watanabe Masahiro Hirano and Hideo Hosono Iron Based Layered Superconductor La O1 xFx FeAs x 0 05 0 12 with Tc 26 K Journal of American Chemical Society 2008 130 11 3296 3297 doi 10 1021 ja800073m 5 0 5 1 5 2 5 3 K Ishida et al To What Extent Iron Pnictide New Superconductors Have Been Clarified A Progress Report J Phys Soc Jpn 2009 78 6 062001 Bibcode 2009JPSJ 78f2001I arXiv 0906 2045 nbsp doi 10 1143 JPSJ 78 062001 已忽略未知参数 author separator 帮助 Prakash J Singh S J Samal S L Patnaik S Ganguli A K Potassium fluoride doped LaOFeAs multi band superconductor Evidence of extremely high upper critical field EPL Europhysics Letters 2008 84 5 57003 Bibcode 2008EL 8457003P doi 10 1209 0295 5075 84 57003 Shirage Parasharam M Miyazawa Kiichi Kito Hijiri Eisaki Hiroshi Iyo Akira Superconductivity at 43 K at ambient pressure in the iron based layered compound La1 xYxFeAsOy Physical Review B 2008 78 17 172503 Bibcode 2008PhRvB 78q2503S doi 10 1103 PhysRevB 78 172503 Ren Z A Yang J Lu W Yi W Che G C Dong X L Sun L L Zhao Z X Superconductivity at 52 K in iron based F doped layered quaternary compound Pr O1 xFx FeAs Materials Research Innovations 2008 12 3 105 doi 10 1179 143307508X333686 Shirage Parasharam M Miyazawa Kiichi Kihou Kunihiro Lee Chul Ho Kito Hijiri Tokiwa Kazuyasu Tanaka Yasumoto Eisaki Hiroshi Iyo Akira Synthesis of ErFeAsO based superconductors by the hydrogen doping method EPL Europhysics Letters 2010 92 5 57011 Bibcode 2010EL 9257011S arXiv 1011 5022 nbsp doi 10 1209 0295 5075 92 57011 Shirage Parasharam M Kihou Kunihiro Lee Chul Ho Kito Hijiri Eisaki Hiroshi Iyo Akira Emergence of Superconductivity in 32522 Structure of Ca3Al2O5 y Fe2Pn2 Pn As and P Journal of the American Chemical Society 2011 133 25 9630 3 PMID 21627302 doi 10 1021 ja110729m Shirage Parasharam M Kihou Kunihiro Lee Chul Ho Kito Hijiri Eisaki Hiroshi Iyo Akira Superconductivity at 28 3 and 17 1 K in Ca sub 4 Al sub 2 O sub 6 y Fe sub 2 Pn sub 2 Pn As and P Applied Physics Letters 2010 97 17 172506 Bibcode 2010ApPhL 97q2506S arXiv 1008 2586 nbsp doi 10 1063 1 3508957 Yang Jie Li Zheng Cai Lu Wei Yi Wei Shen Xiao Li Ren Zhi An Che Guang Can Dong Xiao Li Sun Li Ling Superconductivity at 53 5 K in GdFeAsO1 d Superconductor Science and Technology 2008 21 8 082001 Bibcode 2008SuScT 21h2001Y doi 10 1088 0953 2048 21 8 082001 Yin Yi Zech M Williams T L Wang X F Wu G Chen X H Hoffman J E Scanning Tunneling Spectroscopy and Vortex Imaging in the Iron Pnictide Superconductor BaFe 1 8 Co 0 2 As 2 Physical Review Letters 2009 102 9 Bibcode 2009PhRvL 102i7002Y arXiv 0810 1048v2 nbsp doi 10 1103 PhysRevLett 102 097002 Ren Zhi An Che Guang Can Dong Xiao Li Yang Jie Lu Wei Yi Wei Shen Xiao Li Li Zheng Cai Sun Li Ling Superconductivity and phase diagram in iron based arsenic oxides ReFeAsO1 d Re rare earth metal without fluorine doping EPL Europhysics Letters 2008 83 17002 Bibcode 2008EL 8317002R arXiv 0804 2582 nbsp doi 10 1209 0295 5075 83 17002 Marianne Rotter Marcus Tegel and Dirk Johrendt Superconductivity at 38 K in the Iron Arsenide Ba1 xKx Fe2As2 Physical Review Letters 2008 101 10 107006 Bibcode 2008PhRvL 101j7006R PMID 18851249 arXiv 0805 4630 nbsp doi 10 1103 PhysRevLett 101 107006 Shirage Parasharam Maruti Miyazawa Kiichi Kito Hijiri Eisaki Hiroshi Iyo Akira Superconductivity at 26 K in Ca1 xNax Fe2As2 Applied Physics Express 2008 1 081702 doi 10 1143 APEX 1 081702 Satoru Matsuishi Yasunori Inoue Takatoshi Nomura Hiroshi Yanagi Masahiro Hirano and Hideo Hosono Superconductivity Induced by Co Doping in Quaternary Fluoroarsenide CaFeAsF J Am Chem Soc 2008 2008 44 14428 14429 2013 09 27 PMID 18842039 doi 10 1021 ja806357j 原始内容存档于2020 08 11 G Wu Y L Xie H Chen M Zhong R H Liu B C Shi Q J Li X F Wang T Wu Y J Yan J J Ying and X H Chen Superconductivity at 56 K in Samarium doped SrFeAsF Journal of Physics Condensed Matter 2009 2008 21 3 Bibcode 2008arXiv0811 0761W arXiv 0811 0761 nbsp X C Wang Q Q Liu Y X Lv W B Gao L X Yang R C Yu F Y Li and C Q Jin The superconductivity at 18 K in LiFeAs system Solid State Commun 2008 148 538 arXiv 0806 4688 nbsp Michael J Pitcher et al Structure and superconductivity of LiFeAs Chem Commun 2008 2008 45 5918 5920 PMID 19030538 doi 10 1039 b813153h 已忽略未知参数 author separator 帮助 Joshua H Tapp et al LiFeAs An intrinsic FeAs based superconductor with Tc 18 K Physical Review B 2008 78 6 060505 R Bibcode 2008PhRvB 78f0505T arXiv 0807 2274 nbsp doi 10 1103 PhysRevB 78 060505 已忽略未知参数 author separator 帮助 C W Chu et al The Synthesis and Characterization of LiFeAs and NaFeAs 2009 arXiv 0902 0806 nbsp cond mat supr con 引文格式1维护 显式使用等标签 link Dinah R Parker Michael J Pitcher and Simon J Clarke Structure and superconductivity of the layered iron arsenide NaFeAs Chemical Communications 2008 2189 16 2189 arXiv 0810 3214 nbsp doi 10 1039 B818911K Fong Chi Hsu et al Superconductivity in the PbO type structure a FeSe PNAS 2008 105 38 14262 14264 Bibcode 2008PNAS 10514262H PMC 2531064 nbsp PMID 18776050 doi 10 1073 pnas 0807325105 已忽略未知参数 author separator 帮助 Yoshikazu Mizuguchi Fumiaki Tomioka Shunsuke Tsuda Takahide Yamaguchi and Yoshihiko Takano Superconductivity at 27 K in tetragonal FeSe under high pressure Appl Phys Lett 2008 93 15 152505 Bibcode 2008ApPhL 93o2505M arXiv 0807 4315 nbsp doi 10 1063 1 3000616 取自 https zh wikipedia org w index php title 鐵基超導體 amp oldid 72919820, 维基百科，wiki，书籍，书籍，图书馆，

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