Time-domain terahertz spectroscopy of spin state transition in [ Fe ( NH 2 − trz ) 3 ] 2+ spin crossover compounds
We have measured the evolution of the THz spectrum of iron(II) spin crossover compounds within the low-spin/high-spin thermal hysteresis loop in the 0.6-6 THz frequency range. This study enabled to follow both the variations of the refractive optical index and absorption during the spin state transi...
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Veröffentlicht in: | Applied physics letters 2011-08, Vol.99 (6), p.061908-061908-3 |
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Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | We have measured the evolution of the THz spectrum of iron(II) spin crossover compounds within the low-spin/high-spin thermal hysteresis loop in the 0.6-6 THz frequency range. This study enabled to follow both the variations of the refractive optical index and absorption during the spin state transition. Marked absorptions centered ∼2-3 THz and ∼5 THz shifting with the spin state are revealed. Our work provides a means to store optically information and to read it out in the THz domain and also offers indications about the structural evolution occurring during the spin state transition. |
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ISSN: | 0003-6951 1077-3118 |
DOI: | 10.1063/1.3624600 |