Photoinduced resistivity changes in Bi0.4Ca0.6MnO3 thin films

We report charge-ordered Bi0.4Ca0.6MnO3 thin films with charge-ordering temperature near room temperature, and observation of large photoinduced resistivity changes in these films associated with melting of the charge ordering by visible light. Films grown under small compressive strain exhibit the largest photoinduced resistivity changes. The lifetime of the photoinduced low-resistance state is on the order of half a minute. These photoinduced resistivity changes in thin films of Bi0.4Ca0.6MnO3 make them very promising for photonic device application.

[1]  T. Sakakibara,et al.  Field-angle dependence of the zero-energy density of states in the unconventional heavy-fermion superconductor CeCoIn5 , 2003, cond-mat/0312012.

[2]  Yoshinori Tokura,et al.  Correlated-electron physics in transition-metal oxides , 2003 .

[3]  S. Brion,et al.  High magnetic field transport measurements of charge-ordered Pr 0.5 Ca 0.5 MnO 3 strained thin films , 2002, cond-mat/0206072.

[4]  S. Cheong,et al.  High resolution study of permanent photoinduced reflectivity changes and charge-order domain switching in Bi(0.3)Ca(0.7)MnO(3). , 2001, Physical review letters.

[5]  M. Salamon,et al.  The physics of manganites: Structure and transport , 2001 .

[6]  S. Cheong,et al.  Correlations Between the Magnetic and Structural Properties of Ca Doped BiMnO3 , 2001 .

[7]  A. Haghiri-Gosnet,et al.  Charge ordering in Pr0.5Ca0.5MnO3 thin films: A new form initiated by strain effects of LaAlO3 substrate , 2000 .

[8]  A. Haghiri-Gosnet,et al.  Thickness dependence of the stability of the charge-ordered state in Pr$_{0.5}$Ca$_{0.5}$MnO$_{3}$ thin films , 2000, cond-mat/0007101.

[9]  Y. Tokura.  Colossal Magnetoresistive Oxides , 2000 .

[10]  Masashi Kawasaki,et al.  Switching behavior of epitaxial perovskite manganite thin films , 1999 .

[11]  R. Greene,et al.  Effect of substrate-induced strain on the charge-ordering transition in Nd0.5Sr0.5MnO3 thin films , 1999, cond-mat/9903178.

[12]  Miyano,et al.  Visualization of the local insulator-metal transition in Pr0.7Ca0. 3MnO3 , 1998, Science.

[13]  B. Raveau,et al.  Colossal magnetoresistance, charge ordering and related properties of manganese oxides , 1998 .

[14]  Y. Tomioka,et al.  Photoinduced Insulator-to-Metal Transition in a Perovskite Manganite , 1997 .

[15]  Y. Tomioka,et al.  An X-ray-induced insulator–metal transition in a magnetoresistive manganite , 1997, Nature.

[16]  Thomas F. Krauss,et al.  Two-dimensional photonic-bandgap structures operating at near-infrared wavelengths , 1996, Nature.

[17]  Costas M. Soukoulis,et al.  Photonic band gaps and localization , 1993 .

[18]  N. A. Grigoryan,et al.  X‐Ray Diffraction and Magnetic Studies of Solid Solutions Bi1−xCaxMnO3 , 1967 .