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Magnetic-field-induced Optical bistability in multifunctional Gd 2O3: Er3+/Yb3+ upconversion nanophosphor

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dc.contributor.authorSingh, Sunil K.
dc.contributor.authorKumar, Kaushal
dc.contributor.authorSrivastava, Manish K.
dc.contributor.authorRai, Devendra K.
dc.contributor.authorRai, Shyam B.
dc.date.accessioned2025-03-03T09:41:09Z
dc.date.available2025-03-03T09:41:09Z
dc.date.issued2010
dc.description.abstractThe effect of an external magnetic field (0-1 T) on the upconversion emission (λexe,=976 nm) of Gd2O3 : Ers+/Yb8+ nanocrystalline phosphor has been studied. Optical bistability (hysteresis behavior in the intensity of the optical emission) for different transitions of the Er8+ ion has been observed for a complete cycle of the magnetic field between 0 and 1 T. The phosphor shows paramagnetic behavior, consistent with the presence of Gd3+ ions, at room temperature. Interaction between induced magnetization in the Gd2O3 host and the intrinsic magnetic moment of the nanosized clusters of Er3+ and Yb3+ ion pairs is proposed to be responsible for the hysteresis behavior. © 2010 Optical Society of America.
dc.identifier.doihttps://doi.org/10.1364/OL.35.001575
dc.identifier.issn15394794
dc.identifier.urihttps://dl.bhu.ac.in/ir/handle/123456789/81950
dc.titleMagnetic-field-induced Optical bistability in multifunctional Gd 2O3: Er3+/Yb3+ upconversion nanophosphor
dc.typeArticle
dspace.entity.typePublication
journal.titleOptics Letters
journalvolume.identifier.volume35

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2010