论文信息 - Temperature dependence of tunneling spectroscopy in epitaxial thin film Pr0.5Sr0.5MnO3

Temperature dependence of tunneling spectroscopy in epitaxial thin film Pr0.5Sr0.5MnO3

Abstract We have studied the variation of the density of states (DOS) near the Fermi energy E f of Pr 0.5 Sr 0.5 MnO 3 thin film as a function of temperature using scanning tunneling microscope (STM). The tunneling spectroscopy exhibits spectral changes in the density of state across Neel temperature ( T N ∼160 K) and Curie temperature ( T C ∼240 K). The DOS near E f shows strong temperature dependence.

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