"Seiji Nakashima,Hironori Fujisawa,M. Shimizu,OSAMI SAKATA,Tomoaki Yamada,HIROSHI FUNAKUBO,Jung Min  Park,Takeshi Kanashima,Masanori Okuyama","X-ray Diffraction Study of Electric-field-induced Strains in Polycrystalline BiFeO3 Thin Films at Low Temperatures by Using Synchrotron Radiation",,"J. Korean Phys. Soc.",,"Vol. 59(3)",,"pp. 2556-2559",2011,