PHOTOINDUCED CHANGES IN RAMAN-SPECTRA OF SUPERCONDUCTING CERAMICS YBA2CU3O7-DELTA

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作者：
GNEZDILOV, VP
EREMENKO, VV
FOMIN, VI
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来源：
FIZIKA NIZKIKH TEMPERATUR | 1991年 / 17卷 / 07期
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O59 [应用物理学];
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摘要：
In the present paper the effect of photoinduced charge carriers of the two-magnon scattering spectrum of YBa2Cu3O7-delta is studied. The band intensity of two-magnon scattering is found to decrease upon laser radiation. Photoinduced variations in Raman spectra are long-lived: at room temperature the sample relaxation time to an unexposed state is about 40 hours. Possible mechanisms of the phenomenon observed are discussed.
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页码：828 / 832
页数：5
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