Journal
PHYSICAL REVIEW LETTERS
Volume 101, Issue 17, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.177403
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Funding
- KAKENHI [20740172]
- MEXT TOKUTEI [16076207]
- Grants-in-Aid for Scientific Research [20740172] Funding Source: KAKEN
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A persistent photoinduced metal-to-insulator transition has been confirmed in a manganite thin film, Pr(0.55)(Ca(0.75)Sr(0.25))(0.45)MnO(3), near a multicritical point by monitoring with transport measurements and x-ray photoemission spectroscopy. Together with the previously reported reverse effect, the photoinduced insulator-to-metal transition, it is found that the relative stability of the metallic and insulating phases interchanges around 80 K in the middle of a very wide hysteresis loop, which is a manifestation of the large potential barrier due to the long-range elastic energy. It is shown that photons are much more effective in overcoming the barrier via the electronically excited intermediate states than via the heat mode.
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