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ultra-fast spectroscopy investigation of verwey transition in magnetite
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نویسنده
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mokhtari a ,neal j.r. ,blythe h.j. ,gehring g.a.
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منبع
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پژوهش فيزيك ايران - 1394 - دوره : 15 - شماره : 3 - صفحه:47 -49
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چکیده
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Magnetite has a different electrical resistance behavior with temperatures below and above the verwey temperature. here, we report on verwey transition in fe3o4 by means of the frequencydoubled output from the tisapphire laser in pumpprobe experiments and from the insulator to metal transition observed by changing the temperature at the wavelength 370nm (~3.36 ev) both for pump and probe. we observed a clear difference below and above the verwey temperature in ultrafast transmission changes.
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کلیدواژه
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verwey transition ,magnetite ,metal-insulation transition ,pump-probe
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آدرس
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islamic azad university, arak branch, department of physics, ایران, the university of sheffield, department of physics and astronomy, uk, the university of sheffield, department of physics and astronomy, uk, the university of sheffield, department of physics and astronomy, uk
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Authors
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