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Coexistence of coupled magnetic phases in epitaxial TbMnO3 films revealed by ultrafast optical spectroscopy
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10.1063/1.4754294
/content/aip/journal/apl/101/12/10.1063/1.4754294
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/12/10.1063/1.4754294
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

signals measured on a 50 nm TMO film on long (a),(c) and short timescales (b). (d) Ultrafast dynamics at 20 K on short timescales in three TMO films with d ∼ 34 nm (dashed), 50 nm (solid), and 150 nm (dashed-dotted), respectively. The black solid curve in (a) demonstrates the fitting. For comparison, data at 20 K for SC-TMO (blue) is also shown in (c) and (d). signals measured on a 50 nm SMO film on long and short timescales are shown in (e) and (f), respectively.

Image of FIG. 2.
FIG. 2.

(a) The magnetic moment versus magnetic field H at T = 5 K is shown for a 50 nm TMO film. ZFC-FC curves are shown in (b). The inverse susceptibility () of the film is plotted as a function of temperature, T, in (c). The data was taken with a 1 kOe field applied parallel to the sample plane.

Image of FIG. 3.
FIG. 3.

Decay time constants ( and ) at different temperatures for the d = 50 nm SMO film (a),(b), and for d = 34 nm, 50 nm, and 150 nm TMO films (c),(d). For clarity, for the 50 nm and 150 nm TMO films in (c) is shifted up by 3 ps and 6 ps, respectively. for the 50 nm and 150 nm TMO films in (d) is shifted up by 50 ps and 150 ps, respectively. The arrows indicate the phase transition temperatures.

Image of FIG. 4.
FIG. 4.

Temperature dependence of for three TMO films.

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/content/aip/journal/apl/101/12/10.1063/1.4754294
2012-09-19
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Coexistence of coupled magnetic phases in epitaxial TbMnO3 films revealed by ultrafast optical spectroscopy
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/12/10.1063/1.4754294
10.1063/1.4754294
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