| Issue |
EPL
Volume 83, Number 6, September 2008
|
|
|---|---|---|
| Article Number | 67008 | |
| Number of page(s) | 5 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/83/67008 | |
| Published online | 15 September 2008 | |
New field-induced spin density wave phenomena from the Pauli terms in excitonic insulators
1
Department of Physics, National Technical University of Athens - GR-15780 Athens, Greece, EU
2
Cavendish Laboratory, University of Cambridge - Cambridge CB3 03E, UK, EU
Corresponding author: varelogi@central.ntua.gr
Received:
13
May
2008
Accepted:
20
July
2008
Usually, one expects the Zeeman magnetic field to compete with a charge density wave (CDW) or a spin density wave (SDW). We report for the first time here that under quite generic conditions, the Zeeman magnetic field may induce transitions from CDW to CDW+SDW therefore generating SDW states that could not exist at zero field. Our field-induced CDW to SDW+CDW transition may provide among others, a direct explanation to puzzling for two decades findings in 2H-TaS2.
PACS: 75.30.Fv – Spin-density waves / 75.30.Kz – Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.)
© EPLA, 2008
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