[1] Liu P, He Y, Li J, Zhu G Q, Bian X B 2007 Acta Phys. Sin. 56 5489 (in Chinese) [刘 鹏、贺 颖、李 俊、朱刚强、边小兵 2007 物理学报 56 5489]
[2] Xiang J, Wang X H 2008 Acta Phys. Sin. 57 4417 (in Chinese) [向 军、王晓晖 2008 物理学报 57 4417]
[3] Mu C H, Liu P, He Y, Zhang D, Meng L, Bian X B 2008 Acta Phys. Sin. 57 2432 (in Chinese) [慕春红、刘 鹏、贺 颖、张 丹、孟 玲、边小兵 2008 物理学报 57 2432]
[4] Sinclair D C, West A R 1989 J. Appl. Phys. 66 3850
[5] Norbre M A L, Lanfredi S 2003 J. Appl. Phys. 93 5576
[6] Heinen B, Waser R 1998 J. Mater. Sci. 33 4603
[7] Xiang P H, Takeda H, Shiosaki T 2007 Appl. Phys. Lett. 91 162904
[8] Abram E J, Sinclair D C, West A R 2001 J. Electroceram. 7 179
[9] Imai Y, Katoa M, Noji T, Koike Y, Hedo M, Uwatoko Y, Mori N 2005 Physica C 426 497
[10] Sleight A W, Gillson J L, Biersted P E 1975 Solid State Commun.17 27
[11] Luo Y, Liu X Y 2005 Mater. Lett. 59 3881
[12] Park J H, Bae J S, Choi B C, Jeong J H 2007 J. Phys. D 40 579
[13] Gerhardt R 1994 J. Phys. Chem. Solids 55 1491
[14] Norbre M A L, Lanfredi S 2003 Appl. Phys. Lett. 82 2284
[15] Rahmouni H, Nouiri M, Jemai R, Kallel N, Rzigua F, Selmi A, Khirouni K, Alaya S 2007 J. Magn. Magn. Mater. 316 23