Iron monosilicide

Iron monosilicide
	; Structures of left-handed and right-handed FeSi crystals (3 presentations, with different numbers of atoms per unit cell)
Names
	IUPAC name Iron silicide
	Other names Naquite, fersilicite
Identifiers
CAS Number	12022-95-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	13077547 ;
ECHA InfoCard	100.031.506
EC Number	234-670-2;
PubChem CID	13956050;
UNII	A3I5H1663X;
CompTox Dashboard (EPA)	DTXSID40892426 ;
	InChI InChI=1S/Fe.Si Key: XWHPIFXRKKHEKR-UHFFFAOYSA-N;
	SMILES [Si].[Fe];
Properties
Chemical formula	FeSi
Molar mass	83.931 g/mol
Appearance	gray cubic crystals
Density	6.1 g/cm3
Melting point	1,410 °C (2,570 °F; 1,680 K)
Band gap	0.05 eV (ind.); 0.14 eV (dir.)
Structure
Crystal structure	Cubic
Space group	P213 (No. 198), cP8
Lattice constant	a = 0.44827(1) nm
Formula units (Z)	4
Hazards
Flash point	Non-flammable
Related compounds
Other anions	Iron germanide
Other cations	Cobalt silicide; Manganese silicide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). (what is ?) Infobox references

Iron monosilicide (FeSi) is an intermetallic compound, a silicide of iron that occurs in nature as the rare mineral naquite. It contains iron in both the 0 and +3 oxidation states.^[4]. It is a semiconductor with unusual magnetic properties at low temperatures. It has a cubic crystal lattice with no inversion center; therefore its magnetic structure is helical, with right-hand and left-handed chiralities.^[3]

References

^ ^a ^b ^c Haynes, William M., ed. (2016). CRC Handbook of Chemistry and Physics (97th ed.). CRC Press. p. 4.68. ISBN 9781498754293.
^ Galakhov, V R; Kurmaev, E Z; Cherkashenko, V M; Yarmoshenko, Yu M; Shamin, S N; Postnikov, A V; Uhlenbrock, S; Neumann, M; Lu, Z W; Klein, B M; Shi, Zhu-Pei (1995). "Electronic structure of FeSi". Journal of Physics: Condensed Matter. 7 (28): 5529–5535. arXiv:mtrl-th/9505004. doi:10.1088/0953-8984/7/28/010.
^ ^a ^b Stishov, Sergei M.; Petrova, Alla E. (2011). "Itinerant helimagnetic compound MnSi". Uspekhi Fizicheskih Nauk. 181 (11): 1157. doi:10.3367/UFNr.0181.201111b.1157.
^ Dutta, Paromita; Pandey, Sudhir K (10 April 2019). "Effects of correlations and temperature on the electronic structures and related physical properties of FeSi and CoSi: a comprehensive study". Journal of Physics: Condensed Matter. 31 (14): 145602. doi:10.1088/1361-648X/aafdce. {{cite journal}}: |access-date= requires |url= (help)

[crc-1] Haynes, William M., ed. (2016). CRC Handbook of Chemistry and Physics (97th ed.). CRC Press. p. 4.68. ISBN 9781498754293.

[2] Galakhov, V R; Kurmaev, E Z; Cherkashenko, V M; Yarmoshenko, Yu M; Shamin, S N; Postnikov, A V; Uhlenbrock, S; Neumann, M; Lu, Z W; Klein, B M; Shi, Zhu-Pei (1995). "Electronic structure of FeSi". Journal of Physics: Condensed Matter. 7 (28): 5529–5535. arXiv:mtrl-th/9505004. doi:10.1088/0953-8984/7/28/010.

[r1-3] Stishov, Sergei M.; Petrova, Alla E. (2011). "Itinerant helimagnetic compound MnSi". Uspekhi Fizicheskih Nauk. 181 (11): 1157. doi:10.3367/UFNr.0181.201111b.1157.

[4] Dutta, Paromita; Pandey, Sudhir K (10 April 2019). "Effects of correlations and temperature on the electronic structures and related physical properties of FeSi and CoSi: a comprehensive study". Journal of Physics: Condensed Matter. 31 (14): 145602. doi:10.1088/1361-648X/aafdce. {{cite journal}}: |access-date= requires |url= (help)

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See also

References