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硒化亚铁

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硒化亚铁
IUPAC名
Iron(II) selenide
识别
CAS号 1310-32-3  ✓
PubChem 14795
SMILES
InChI
InChIKey WALCGGIJOOWJIN-UHFFFAOYSA-N
EINECS 215-177-1
性质
化学式 FeSe
摩尔质量 134.81 g·mol⁻¹
外观 黑色晶体
密度 4.72 g/cm3
熔点 965 °C(1238 K)
溶解性 0.975 g/100 mL
结构
晶体结构 六方
若非注明,所有数据均出自一般条件(25 ℃,100 kPa)下。

硒化亚铁是一种无机化合物,化学式为FeSe。[1]它可由的化合反应制备。[2]

超导性

β-FeSe 是最简单的铁基超导体,但具有不同的属性。[3]常压下,它在 8 K以下超导;[4]但通过嵌入[3]或在高压下淬火[5],它的超导转变温度 (Tc)急剧增加到 38 K,[6]嵌入和高压淬火的结合会使超导转变温度上升到 48 K。[3]

2013年有报道称,在SrTiO3外延生长的FeSe单原子层具有超导性,铁基超导体的转变温度为 70 K。[7]这一发现引起了极大的关注,据2014年的报道,该系统的超导转变温度超过 100K。[8]

参考文献

  1. ^ University of Akron Chemical Database[永久失效链接]
  2. ^ Gorokh, A. V.; Kabanova, L. M.; Dobosh, V. G. Reaction of iron with selenium at 400-​1400°. Doklady Akademii Nauk SSSR, 1966. 169 (3): 639-640.
  3. ^ 3.0 3.1 3.2 Yu. V. Pustovit; A. A. Kordyuk. Metamorphoses of electronic structure of FeSe-based superconductors (Review article). Low Temp. Phys. 2016, 42 (11): 995. Bibcode:2016LTP....42..995P. S2CID 119184569. arXiv:1608.07751可免费查阅. doi:10.1063/1.4969896. 
  4. ^ F.-C. Hsu; 等. Superconductivity in the PbO-type structure α-FeSe. Proc. Natl. Acad. Sci. USA. 2008, 105 (38): 14262–14264. Bibcode:2008PNAS..10514262H. PMC 2531064可免费查阅. PMID 18776050. arXiv:0807.2369可免费查阅. doi:10.1073/pnas.0807325105可免费查阅. 
  5. ^ Deng, Liangzi; Bontke, Trevor; Dahal, Rabin; Xie, Yu; Gao, Bin; Li, Xue; Yin, Ketao; Gooch, Melissa; Rolston, Donald; Chen, Tong; Wu, Zheng; Ma, Yanming; Dai, Pengcheng; Chu, Ching-Wu. Pressure-induced high-temperature superconductivity retained without pressure in FeSe single crystals. Proceedings of the National Academy of Sciences. 13 July 2021, 118 (28): e2108938118 [11 July 2021]. PMC 8285973可免费查阅. PMID 34234019. doi:10.1073/pnas.2108938118.  已忽略未知参数|pmc-embargo-date= (帮助)
  6. ^ Medvedev, S.; McQueen, T. M.; Troyan, I. A.; Palasyuk, T.; Eremets, M. I.; Cava, R. J.; Naghavi, S.; Casper, F.; Ksenofontov, V.; Wortmann, G.; Felser, C. Electronic and Magnetic Phase Diagram of β-Fe1.01Se with superconductivity at 36.7 K under pressure. Nature Materials. 2009, 8 (8): 630–633. Bibcode:2009NatMa...8..630M. PMID 19525948. arXiv:0903.2143可免费查阅. doi:10.1038/nmat2491. 
  7. ^ R. Peng; 等. Enhanced superconductivity and evidence for novel pairing in single-layer FeSe on SrTiO3 thin film under large tensile strain. Physical Review Letters. 2014, 112 (10): 107001. Bibcode:2014PhRvL.112j7001P. PMID 24679321. S2CID 118446521. arXiv:1310.3060可免费查阅. doi:10.1103/PhysRevLett.112.107001. 
  8. ^ J.-F. Ge; 等. Superconductivity in single-layer films of FeSe with a transition temperature above 100 K. Nature Materials. 2014, 14 (3): 285–9. Bibcode:2015NatMa..14..285G. PMID 25419814. arXiv:1406.3435可免费查阅. doi:10.1038/nmat4153. 
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硒化亚铁
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