-
Temperature dependence of initial permeability is investigated for nanocrystalline Fe38.4Co40Si9B9Nb2.6Cu alloy annealed at 500 and 600℃,and the initial permeability of 600℃-annealed sample is observed not to drop sharply at the Curie temperature of the residual amorphous phase,which is a new magnetic phenomenon in dual-phase nanocrystalline alloys. The origin of the above phenomenon is explored by estimating the Curie temperature of amorphous ribbons which have the same compositions with the residual amorphous phase in annealed nanocrystalline alloys. The results indicate that the Curie temperature of the intergranular amorphous region can be enhanced drastically up to the Curie temperature of the crystalline phase (TAC=TαC) when the exchange-field between adjacent nanograins penetrates through the amorphous interphase thoroughly. Furthermore, the effective exchange penetration length of FeCo-based nanocrystalline alloys (LFeCo) is evaluated to be 0.61 nm much larger than that of Fe-based nanocrystalline alloys, which may be the main reason of the higher permeability of FeCo-based alloys at elevated temperature.
-
Keywords:
- exchange-coupling interaction /
- Curie temperature of the residual amorphous phase /
- the effective exchange penetration length
[1] Yoshizawa Y,Oguma S,Yamauchi K J 1988 J. Appl. Phys. 64 6044
[2] Chen S Y,Liu C S,Li H L,Cui T 2005 Acta Phys. Sin. 54 4157 (in Chinese) [陈岁元、刘常升、李惠莉、崔 彤 2005 54 4157]
[3] Zhou X F,Tao S F,Liu Z Q,Kan J D,Li D X 2002 Acta Phys. Sin. 51 322 (in Chinese) [周效峰、陶淑芬、刘佐权、阚家德、李德修 2002 51 322]
[4] Wang Z,He K Y,Yin J,Zhao Y H 1997 Acta Phys. Sin. 46 2054 (in Chinese) [王 治、何开元、尹 君、赵玉华 1997 46 2054]
[5] Wang Z,He K Y,Jin J,Zhang L 2001 Mater. Sci. Eng. A 304- 306 1046
[6] Willard M A,Laughlin D E,Mchenry M E 1998 J. Appl. Phys. 84 6773
[7] Ding Y H,Liu X,Zhou S S,Long Y,Ye R C 2007 Acta Metall. Sin. (Engl. Lett) 20 327
[8] Wang Z,Zhang P,Zhang D X,Han Y M,Chen X H,Ou Y N 2007 Journal of Functional Materials 38 957 (in Chinese) [王 治、张 鹏、张东须、韩叶梅、车相辉、欧阳宁 2007 功能材料 38 957]
[9] Gercsi Zs,Mazaleyrat F,Varga L K 2006 J. Magn. Magn. Mater. 302 454
[10] Han Y M,Wang Z,Che X H,Chen X G,Li W R,Li Y L 2009 Mater. Sci. Eng. B 156 57
[11] Alben R,Becker J J,Chi M C1978 J. Appl. Phys. 49 1653
[12] Ji S,Yang G B,Wang R 1996 Acta Phys. Sin. 45 2061 (in Chinese) [纪 松、杨国斌、王 润 1996 45 2061]
[13] Hernando A,Kulik T 1994 Phys. Rev. B 49 7064
[14] Gao Y H,Shindo D,Bitoh T,Makino A 2003 Phys. Rev. B 67 172409
[15] Ma X H,Wang Z,Han X T 2007 Mater. Sci. Eng. A 448 216
[16] Suzuki K,Cadogan J M 1998 Phys. Rev. B 58 2730
[17] Ohnuma M,Ping D H,Abe T,Onodera H,Hono K 2003 J. Appl. Phys. 93 11
[18] Kuhrt C,Herzer G 1996 IEEE Trans. Magn. 32 4881
[19] Shen B G,Guo H Q,Zhan W S,Chen D X,Zhan Z Y,Wu Z L,Wang J L,Pan X S 1983 Communications in Theoretical Physics 2 22 (in Chinese) [沈保根、郭慧群、詹文山、陈笃行、章志英、吴宗林、王金玲、潘孝硕 1983 物理通讯 2 22]
[20] Ma X H 2007 MS Thesis (Tianjin:Tianjin University of China ) (in Chinese) [马晓华 2007 硕士学位论文(天津:天津大学)]
[21] Hernando A,Navarro I 1995 Phys. Rev. B 51 3281
[22] Varga L K 2007 J. Magn. Magn. Mater 316 442
[23] Hernando A 1994 T. Kulik. Phys. Rev. B 49 7064
[24] Randrianantoandro N,S ＇ lawaska-Waniewska A,Greneche J M 1997 Phys. Rev. B 56 10797
[25] Lu Y,Li Q A,Di N L,Ma X,Kou Z Q,Luo Z,Cheng Z H 2003 Chin. Phys. 12 789
[26] Zhang X Y,Zhang F X,Zhang J W,Yu W,Zhang M,Zhao J H,Liu R P,Xu Y F,Wang W K 1998 J. Appl. Phys. 84 1918
[27] Tang J C,Mao X Y,Li S D,Gao W L,Du Y W 2004 J. Alloys Compd. 375 233
[28] Gomez-polo C,Marin P,Pascual L,Hernando A,Vazquez M 2002 Phys. Rev. B 65 24433
-
[1] Yoshizawa Y,Oguma S,Yamauchi K J 1988 J. Appl. Phys. 64 6044
[2] Chen S Y,Liu C S,Li H L,Cui T 2005 Acta Phys. Sin. 54 4157 (in Chinese) [陈岁元、刘常升、李惠莉、崔 彤 2005 54 4157]
[3] Zhou X F,Tao S F,Liu Z Q,Kan J D,Li D X 2002 Acta Phys. Sin. 51 322 (in Chinese) [周效峰、陶淑芬、刘佐权、阚家德、李德修 2002 51 322]
[4] Wang Z,He K Y,Yin J,Zhao Y H 1997 Acta Phys. Sin. 46 2054 (in Chinese) [王 治、何开元、尹 君、赵玉华 1997 46 2054]
[5] Wang Z,He K Y,Jin J,Zhang L 2001 Mater. Sci. Eng. A 304- 306 1046
[6] Willard M A,Laughlin D E,Mchenry M E 1998 J. Appl. Phys. 84 6773
[7] Ding Y H,Liu X,Zhou S S,Long Y,Ye R C 2007 Acta Metall. Sin. (Engl. Lett) 20 327
[8] Wang Z,Zhang P,Zhang D X,Han Y M,Chen X H,Ou Y N 2007 Journal of Functional Materials 38 957 (in Chinese) [王 治、张 鹏、张东须、韩叶梅、车相辉、欧阳宁 2007 功能材料 38 957]
[9] Gercsi Zs,Mazaleyrat F,Varga L K 2006 J. Magn. Magn. Mater. 302 454
[10] Han Y M,Wang Z,Che X H,Chen X G,Li W R,Li Y L 2009 Mater. Sci. Eng. B 156 57
[11] Alben R,Becker J J,Chi M C1978 J. Appl. Phys. 49 1653
[12] Ji S,Yang G B,Wang R 1996 Acta Phys. Sin. 45 2061 (in Chinese) [纪 松、杨国斌、王 润 1996 45 2061]
[13] Hernando A,Kulik T 1994 Phys. Rev. B 49 7064
[14] Gao Y H,Shindo D,Bitoh T,Makino A 2003 Phys. Rev. B 67 172409
[15] Ma X H,Wang Z,Han X T 2007 Mater. Sci. Eng. A 448 216
[16] Suzuki K,Cadogan J M 1998 Phys. Rev. B 58 2730
[17] Ohnuma M,Ping D H,Abe T,Onodera H,Hono K 2003 J. Appl. Phys. 93 11
[18] Kuhrt C,Herzer G 1996 IEEE Trans. Magn. 32 4881
[19] Shen B G,Guo H Q,Zhan W S,Chen D X,Zhan Z Y,Wu Z L,Wang J L,Pan X S 1983 Communications in Theoretical Physics 2 22 (in Chinese) [沈保根、郭慧群、詹文山、陈笃行、章志英、吴宗林、王金玲、潘孝硕 1983 物理通讯 2 22]
[20] Ma X H 2007 MS Thesis (Tianjin:Tianjin University of China ) (in Chinese) [马晓华 2007 硕士学位论文(天津:天津大学)]
[21] Hernando A,Navarro I 1995 Phys. Rev. B 51 3281
[22] Varga L K 2007 J. Magn. Magn. Mater 316 442
[23] Hernando A 1994 T. Kulik. Phys. Rev. B 49 7064
[24] Randrianantoandro N,S ＇ lawaska-Waniewska A,Greneche J M 1997 Phys. Rev. B 56 10797
[25] Lu Y,Li Q A,Di N L,Ma X,Kou Z Q,Luo Z,Cheng Z H 2003 Chin. Phys. 12 789
[26] Zhang X Y,Zhang F X,Zhang J W,Yu W,Zhang M,Zhao J H,Liu R P,Xu Y F,Wang W K 1998 J. Appl. Phys. 84 1918
[27] Tang J C,Mao X Y,Li S D,Gao W L,Du Y W 2004 J. Alloys Compd. 375 233
[28] Gomez-polo C,Marin P,Pascual L,Hernando A,Vazquez M 2002 Phys. Rev. B 65 24433
计量
- 文章访问数: 9323
- PDF下载量: 680
- 被引次数: 0
下载:
