The fluoropnictides are mixed anion compounds that contain both fluoride and phosphide, arsenide, antimonide or bismuthide anions (F− and N3−, P3−, As3− Sb3−, Bi3−).
Many of these are semiconductors. Those that contain iron may be ferromagnetic. Research into these compounds is motivated by the existence of the structurally simlar oxyarsenide superconductors.
List edit
Phosphorus edit
| name | formula | ratio | system | space group | unit cell | volume | density | band gap | properties | references |
|---|---|---|---|---|---|---|---|---|---|---|
| BaFMgP | 1:1 | tetragonal | P4/nmm | a=4.3097 c=9.5032 | band gap 2 eV | [1] | ||||
| BaMnPF | 1:1 | [2] | ||||||||
| SrZnPF | 1:1 | [2] | ||||||||
| BaZnPF | 1:1 | tetragonal | P4/nmm | semiconductor | [2] | |||||
Arsenic edit
Many arsenic fluorides crystallize in the tetragonal system, and those containing iron are superconductors.
| name | formula | ratio | system | space group | unit cell | volume | density | band gap | properties | references |
|---|---|---|---|---|---|---|---|---|---|---|
| CaFeAsF | 1:1 | tetragonal | P4/nmm | a=3.8784 c=8.5926 | superconductor Tc = 29 K | [3] | ||||
| CaFe0.9Co0.1AsF | 1:1 | tetragonal | P4/nmm | a=3.8806 c=8.5517 | superconductor Tc 22K | [3] | ||||
| KCa2Fe4As4F2 | a=3.8684 c=31.007 |
463.99 | superconductor Tc 33 K | [4][5] | ||||||
| RbCa2Fe4As4F2 | a=3.8716 c=31.667 | 474.66 | Tc 30.5K | [6] | ||||||
| CsCa2Fe4As4F2 | a=3.8807 c=32.363 | 487.38 | Tc 28.2K | [6] | ||||||
| SrFeAsF | tetragonal | a=4.004 c=8.971 | superconductor > 1GPa | [7] | ||||||
| Sr1-xLaxFeAsF | superconductor x=0.14 Tc=29.5 K | [8] | ||||||||
| LaFeAsO1−xFx | superconductor: for x = 0.14 Tc=40 K at 3 GPa | [9] | ||||||||
| Ca0.5Pr0.5FeAsF | Tc ~52K | [10] | ||||||||
| Sr0.5Sm0.5FeAsF | 1:1 | superconductor Tc 56K | [2] | |||||||
| Sr0.5Nd0.5FeAsF | Tc 49K | [11] | ||||||||
| Ca0.4Nd0.6FeAsF | 1:1 | [2] | ||||||||
| Ca0.5Sm0.5FeAsF | Superconductors Tc 54.2 K | [12] | ||||||||
| EuFeAsF | [13] | |||||||||
| EuAsFeO0.85F0.15 | Tc 11.3 K | [14] | ||||||||
| EuMnAsF | [15] | |||||||||
| EuFeAsF | [15] | |||||||||
| EuZnAsF | [15] | |||||||||
| SmFeAsF | tetragonal | P4/nmm | a = 3.9399 c = 8.5034 | Tc 56K | [16] | |||||
| SmCoAsF | tetragonal | P4/nmm | a=3.9555 c=8.2462 Z=2 | 129.023 | black; ferromagnetic < 70K | [17] | ||||
| BaFMgAs | tetragonal | P4/nmm | a=4.3855 c=9.5918 | [1] | ||||||
| BaMnAsF | 1:1 | tetragonal | P4/nmm | 0.73 | semiconductor | [2] | ||||
| BaZnAsF | 1:1 | tetragonal | P4/nmm | a = 4.2380 c = 9.5284 | [18] | |||||
| (Ba,K)F(Zn,Mn)As | 1:1 | tetragonal | P4/nmm | [18] |
Antimony edit
| name | formula | ratio | mw | system | space group | unit cell | volume | density | band gap | properties | references |
|---|---|---|---|---|---|---|---|---|---|---|---|
| BaFMgSb | tetragonal | P4/nmm | a=4.5733 c=9.8184 | [1] | |||||||
| BaZnSbF | 1:1 | [2] | |||||||||
| BaCdSbF | 1:1 | [2] | |||||||||
| BaMnSbF | 1:1 | 333.03 | tetragonal | P4/nmm | a=4.4682 c=9.817 | 196.00 | 5.643 | 0.48 | semiconductor | [2] |
Bismuth edit
| name | formula | ratio | mw | system | space group | unit cell | volume | density | band gap | properties | references |
|---|---|---|---|---|---|---|---|---|---|---|---|
| BaFMgBi | tetragonal | P4/nmm | a=4.6359 c=9.8599 | band gap 1 eV | [1] | ||||||
| BaMnBiF |
1:1 |
420.26 |
tetragonal |
P4/nmm |
a=4.520 c=9.875 |
201.7 |
6.918 |
0.003 |
semiconductor |
||
Artificial edit
References edit
- ^ a b c d Plokhikh, Igor V.; Kuznetsov, Alexey N.; Charkin, Dmitri O.; Shevelkov, Andrei V.; Pfitzner, Arno (2019-03-04). "Layered Compounds BaFMgPn (Pn = P, As, Sb, and Bi), Transition-Metal-Free Representatives of the 1111 Structure Type". Inorganic Chemistry. 58 (5): 3435–3443. doi:10.1021/acs.inorgchem.8b03554. ISSN 0020-1669.
- ^ a b c d e f g h i j Saparov, Bayrammurad; Singh, David J.; Garlea, Vasile O.; Sefat, Athena S. (2013-07-08). "Crystal, magnetic and electronic structures and properties of new BaMn Pn F ( Pn = As, Sb, Bi)". Scientific Reports. 3 (1): 1–10. doi:10.1038/srep02154. ISSN 2045-2322.
- ^ a b Matsuishi, Satoru; Inoue, Yasunori; Nomura, Takatoshi; Yanagi, Hiroshi; Hirano, Masahiro; Hosono, Hideo (2008-11-05). "Superconductivity Induced by Co-Doping in Quaternary Fluoroarsenide CaFeAsF". Journal of the American Chemical Society. 130 (44): 14428–14429. doi:10.1021/ja806357j. ISSN 0002-7863.
- ^ Wang, Zhi-Cheng; He, Chao-Yang; Tang, Zhang-Tu; Wu, Si-Qi; Cao, Guang-Han (January 2017). "Crystal Structure and Superconductivity at about 30 K in $A$Ca$_2$Fe$_4$As$_4$F$_2$ ($A$ = Rb, Cs)". Science China Materials. 60 (1): 83–89. doi:10.1007/s40843-016-5150-x. ISSN 2095-8226.
- ^ Wang, Zhi-Cheng; He, Chao-Yang; Wu, Si-Qi; Tang, Zhang-Tu; Liu, Yi; Ablimit, Abduweli; Feng, Chun-Mu; Cao, Guang-Han (2016-06-29). "Superconductivity in KCa 2 Fe 4 As 4 F 2 with Separate Double Fe 2 As 2 Layers". Journal of the American Chemical Society. 138 (25): 7856–7859. doi:10.1021/jacs.6b04538. ISSN 0002-7863.
- ^ a b Wang, Zhi-Cheng; He, Chao-Yang; Tang, Zhang-Tu; Wu, Si-Qi; Cao, Guang-Han (January 2017). "Crystal Structure and Superconductivity at about 30 K in $A$Ca$_2$Fe$_4$As$_4$F$_2$ ($A$ = Rb, Cs)". Science China Materials. 60 (1): 83–89. doi:10.1007/s40843-016-5150-x. ISSN 2095-8226.
- ^ Han, Fei; Zhu, Xiyu; Mu, Gang; Cheng, Peng; Wen, Hai-Hu (2008-11-11). "SrFeAsF as a parent compound for iron pnictide superconductors". Physical Review B. 78 (18): 180503. doi:10.1103/PhysRevB.78.180503. ISSN 1098-0121.
- ^ Zhu, Xiyu; Han, Fei; Cheng, Peng; Mu, Gang; Shen, Bing; Fang, Lei; Wen, Hai-Hu (2009-01). "Superconductivity in fluoride-arsenide Sr 1-x La x FeAsF compounds". EPL (Europhysics Letters). 85 (1): 17011. doi:10.1209/0295-5075/85/17011. ISSN 0295-5075.
{{cite journal}}: Check date values in:|date=(help) - ^ Fujiwara, Naoki; Nakano, Tatsuya; Tatsumi, Kenichiro; Okada, Hironari; Takahashi, Hiroki; Kamihara, Yoichi; Hirano, Masahiro; Hosono, Hideo (2010-01-01). "Superconductivity of LaFeAsO 1− x F x under high pressure studied using NMR". Journal of Physics: Conference Series. 200 (1): 012042. doi:10.1088/1742-6596/200/1/012042. ISSN 1742-6596.
- ^ Sasmal, Kalyan; Hadjiev, Viktor; Chu, C. W. (Paul) (2016-01-01). "High-Tc Superconductivity and Raman Scattering Study of the phonon properties of electron doped (transition metal, rare-earth) - Oxygen-Free CaFeAsF and compared with RFeAsO system". 2016: T1.199.
{{cite journal}}: Cite journal requires|journal=(help) - ^ Suganuma, Ryosuke; Watanabe, Tadataka; Takase, Kouichi; Takano, Yoshiki (2011-04). "Superconductivity in Fluorine-Arsenide Sr1-xNdxFeAsF". Solid State Phenomena. 170: 87–91. doi:10.4028/www.scientific.net/SSP.170.87. ISSN 1662-9779.
{{cite journal}}: Check date values in:|date=(help) - ^ Pervakov, K. S.; Kulikova, L. F.; Tsvetkov, A. Yu.; Vlasenko, V. A. (2022-08). "Novel Iron-Based Superconductor Ca0.5Sm0.5FeAsF". Bulletin of the Lebedev Physics Institute. 49 (8): 242–246. doi:10.3103/S106833562208005X. ISSN 1068-3356.
{{cite journal}}: Check date values in:|date=(help) - ^ Zhu, Xiyu; Han, Fei; Cheng, Peng; Mu, Gang; Shen, Bing; Fang, Lei; Wen, Hai-Hu (January 2009). "Superconductivity in fluoride-arsenide Sr 1-x La x FeAsF compounds". EPL (Europhysics Letters). 85 (1): 17011. arXiv:0810.2531. doi:10.1209/0295-5075/85/17011. ISSN 0295-5075.
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- ^ a b c Plokhikh, Igor V.; Tsirlin, Alexander A.; Khalyavin, Dmitry D.; Fischer, Henry E.; Shevelkov, Andrei V.; Pfitzner, Arno (2023). "Effect of antifluorite layer on the magnetic order in Eu-based 1111 compounds, EuTAsF (T = Zn, Mn, and Fe)". Physical Chemistry Chemical Physics. 25 (6): 4862–4871. doi:10.1039/D2CP04863A. ISSN 1463-9076.
- ^ Lin, Dan; Xu, Han-Shu; Luo, Jingjing; Huang, Haoliang; Lu, Yalin; Tang, Kaibin (2019-11-18). "A Self-Doped Oxygen-Free High-Critical-Temperature (High- T c ) Superconductor: SmFFeAs". Inorganic Chemistry. 58 (22): 15401–15409. doi:10.1021/acs.inorgchem.9b02464. ISSN 0020-1669.
- ^ Lin, Dan; Luo, Qinxin; Zheng, Hui; Tang, Lulu; Zhan, Wenqi; Tang, Kaibin (2020). "A new oxygen-free cobalt-based compound SmCoAsF with multiple magnetic transitions". CrystEngComm. 22 (25): 4268–4274. doi:10.1039/D0CE00448K. ISSN 1466-8033.
- ^ a b Chen, Bijuan; Deng, Zheng; Li, Wenmin; Gao, Moran; Liu, Qingqing; Gu, C. Z.; Hu, F. X.; Shen, B. G.; Frandsen, Benjamin; Cheung, Sky; Lian, Liu (2016-11-22). "New Fluoride-arsenide Diluted Magnetic Semiconductor (Ba,K)F(Zn,Mn)As with Independent Spin and Charge Doping". Scientific Reports. 6 (1): 1–9. doi:10.1038/srep36578. ISSN 2045-2322.