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Different Nb doped Ca0.9Yb0.1Mn1-xNbxO3 ceramics are successfully synthesized by the conventional solid state reaction technique. The crystal structures are of orthorhombic phase, belonging to the Pnma space group. The lattice constant and the volume increase with the increase of Nb content. Relatively high density is around 97%. Scanning electron microscope (SEM) images show that samples are well crystallized. The electrical resistivity and the Seebeck coefficient are measured in a temperature range between 300 and 1100 K. At low temperatures, the electrical resistivity shows a semiconductive-like behavior. At high temperatures, the electrical resistivity exhibits a typical metallic conductive behavior. The semiconductor-metal transition temperature shifts toward a higher temperature with the increase of Nb content. The electrical resistivity increases with Nb dopant, except that the electrical resistivity for x=0.03 is slight lower than that fox x=0.00 sample at high temperature range. This conductivity behavior can be understood as the fact that though Nb doping can introduce more carriers, it also distorts the MnO6 octahedra, and causes the carrier localization. The values of Seebeck coefficient are all negative, indicative of an n-type electrical conduction. The absolute value of Seebeck coefficient increases with temperature increasing, but decreases with the increase of Nb content. The highest power factor is obtained to be 297 W/K2m at 497 K in the x=0.00 sample, and the power factor of this sample is less independent of temperature in the whole measured temperature range.
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Keywords:
- CaMnO3 ceramics /
- electrical resistivity /
- Seebeck coefficient
[1] Terasaki I, Sasago Y, Uchinokura K 1997 Phys. Rev. B 56 R12685
[2] Chen X Y, Xu X F, Hu R X, Ren Z, Xu Z A, Cao G H 2007 Acta Phys. Sin. 56 1627 (in Chinese) [陈晓阳、 徐象繁、 胡荣星、 任 之、 许祝安、 曹光旱 2007 物理学报 56 1627]
[3] [4] [5] Wang H C, Wang C L, Su W B, Liu J, Zhao Y, Peng H, Zhang J L, Zhao M L, Li J C, Yin N, Mei L M 2010 Acta Phys.Sin. 59 529 (in Chinese) [王洪超、 王春雷、 苏文斌、 刘 剑、 赵 越、 彭 华、 张家良、 赵明磊、 李吉超、 尹 娜、 梅良模 2010 物理学报 59 529]
[6] Deng S K, Tang X F, Tang R S 2009 Chin. Phys. B 18 3084
[7] [8] [9] Funahashi R, Matsubara I, Ikuta H, Takeuchi T, Mizutani U, Sodeoka S 2000 J. Appl. Phys. 39 L1127
[10] [11] Funahashi R, Matsubara I 2001 Appl. Phys. Lett. 79 362
[12] Wang H C, Wang C L, Su W B, Liu J, Zhao Y, Peng H, Zhang J L, Zhao M L, Li J C, Yin N, Mei L M 2010 Mater. Res. Bull. 45 809
[13] [14] [15] Wang H C, Wang C L, Su W B, Liu J, Peng H, Zhang J L, Zhao M L, Li J C, Yin N, Mei L M 2009 J. Alloys Compd. 486 693
[16] Wang Y, Sui Y, Su W H 2008 J. Appl. Phys. 104 093703
[17] [18] Xu G J, Funahashi R, Pu Q R, Liu B, Tao R H, Wang G S, Ding Z J 2004 Solid State Ionics 171 147
[19] [20] Bocher L, Aguirre M H, Logvinovich D, Shkabko A, Robert R, Trottmann M, Weidenkaff A 2008 Inorg. Chem. 47 8077
[21] [22] Huang X Y, Miyazaki Y, Kajitani T 2008 Solid State Commun. 145 132
[23] [24] [25] Park J W, Kwak D H, Yoon S H, Choi S C 2009 J. Alloys Compd. 487 550
[26] [27] Ohtaki M, Araki K, Yamamoto K 2009 J. Electron. Mater. 38 1234
[28] Kosuga A, Isse Y, Wang Y F, Koumoto K, Funahashi R 2009 J. Appl. Phys. 105 093717
[29] 期刊类型引用(5)
1. 满轲，刘晓丽，宋志飞. 深部岩体半正弦应力波扰动下的层裂试验研究. 岩土工程学报. 2022(03): 428-434 . 
百度学术2. 王云天，曾祥国，陈华燕，杨鑫，王放，祁忠鹏. 钽靶板在冲击下层裂过程的数值模拟. 高压物理学报. 2021(02): 90-103 . 百度学术3. 王云天，曾祥国，陈华燕，杨鑫，王放，祁忠鹏. 延性金属层裂自由面速度曲线特征多尺度模拟研究. 爆炸与冲击. 2021(08): 139-153 . 百度学术4. 李不同，叶霞，姚红兵，韦朋余，丛嘉伟，朱卫华. 飞秒激光加载下NiTi形状记忆合金热效应体系研究. 稀有金属. 2020(04): 401-409 . 百度学术5. 陶明，汪军，李占文，洪志先，王一清，赵瑞. 冲击荷载下花岗岩层裂断口细–微观试验研究. 岩石力学与工程学报. 2019(11): 2172-2181 . 百度学术其他类型引用(8)
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[1] Terasaki I, Sasago Y, Uchinokura K 1997 Phys. Rev. B 56 R12685
[2] Chen X Y, Xu X F, Hu R X, Ren Z, Xu Z A, Cao G H 2007 Acta Phys. Sin. 56 1627 (in Chinese) [陈晓阳、 徐象繁、 胡荣星、 任 之、 许祝安、 曹光旱 2007 物理学报 56 1627]
[3] [4] [5] Wang H C, Wang C L, Su W B, Liu J, Zhao Y, Peng H, Zhang J L, Zhao M L, Li J C, Yin N, Mei L M 2010 Acta Phys.Sin. 59 529 (in Chinese) [王洪超、 王春雷、 苏文斌、 刘 剑、 赵 越、 彭 华、 张家良、 赵明磊、 李吉超、 尹 娜、 梅良模 2010 物理学报 59 529]
[6] Deng S K, Tang X F, Tang R S 2009 Chin. Phys. B 18 3084
[7] [8] [9] Funahashi R, Matsubara I, Ikuta H, Takeuchi T, Mizutani U, Sodeoka S 2000 J. Appl. Phys. 39 L1127
[10] [11] Funahashi R, Matsubara I 2001 Appl. Phys. Lett. 79 362
[12] Wang H C, Wang C L, Su W B, Liu J, Zhao Y, Peng H, Zhang J L, Zhao M L, Li J C, Yin N, Mei L M 2010 Mater. Res. Bull. 45 809
[13] [14] [15] Wang H C, Wang C L, Su W B, Liu J, Peng H, Zhang J L, Zhao M L, Li J C, Yin N, Mei L M 2009 J. Alloys Compd. 486 693
[16] Wang Y, Sui Y, Su W H 2008 J. Appl. Phys. 104 093703
[17] [18] Xu G J, Funahashi R, Pu Q R, Liu B, Tao R H, Wang G S, Ding Z J 2004 Solid State Ionics 171 147
[19] [20] Bocher L, Aguirre M H, Logvinovich D, Shkabko A, Robert R, Trottmann M, Weidenkaff A 2008 Inorg. Chem. 47 8077
[21] [22] Huang X Y, Miyazaki Y, Kajitani T 2008 Solid State Commun. 145 132
[23] [24] [25] Park J W, Kwak D H, Yoon S H, Choi S C 2009 J. Alloys Compd. 487 550
[26] [27] Ohtaki M, Araki K, Yamamoto K 2009 J. Electron. Mater. 38 1234
[28] Kosuga A, Isse Y, Wang Y F, Koumoto K, Funahashi R 2009 J. Appl. Phys. 105 093717
[29] 期刊类型引用(5)
1. 满轲，刘晓丽，宋志飞. 深部岩体半正弦应力波扰动下的层裂试验研究. 岩土工程学报. 2022(03): 428-434 . 百度学术2. 王云天，曾祥国，陈华燕，杨鑫，王放，祁忠鹏. 钽靶板在冲击下层裂过程的数值模拟. 高压物理学报. 2021(02): 90-103 . 百度学术3. 王云天，曾祥国，陈华燕，杨鑫，王放，祁忠鹏. 延性金属层裂自由面速度曲线特征多尺度模拟研究. 爆炸与冲击. 2021(08): 139-153 . 百度学术4. 李不同，叶霞，姚红兵，韦朋余，丛嘉伟，朱卫华. 飞秒激光加载下NiTi形状记忆合金热效应体系研究. 稀有金属. 2020(04): 401-409 . 百度学术5. 陶明，汪军，李占文，洪志先，王一清，赵瑞. 冲击荷载下花岗岩层裂断口细–微观试验研究. 岩石力学与工程学报. 2019(11): 2172-2181 . 百度学术其他类型引用(8)
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