Pickard, CJ;
Needs, RJ;
(2011)
Predicted Pressure-Induced s-Band Ferromagnetism in Alkali Metals.
PHYS REV LETT
, 107
(8)
, Article 087201. 10.1103/PhysRevLett.107.087201.
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Abstract
First-principles density-functional-theory calculations show that compression of alkali metals stabilizes open structures with localized interstitial electrons which may exhibit a Stoner-type instability towards ferromagnetism. We find ferromagnetic phases of the lithium-IV-type, simple cubic, and simple hexagonal structures in the heavier alkali metals, which may be described as s-band ferromagnets. We predict that the most stable phases of potassium at low temperatures and pressures around 20 GPa are ferromagnets.
| Type: | Article |
|---|---|
| Title: | Predicted Pressure-Induced s-Band Ferromagnetism in Alkali Metals |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.107.087201 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.107.087201 |
| Language: | English |
| Additional information: | © 2011 American Physical Society |
| Keywords: | CRYSTAL, LITHIUM, SODIUM, ENERGY |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1321978 |
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