An experimental study of thermopower, magneto thermopower, magnetoresistivity and magnetization of Nd(1-x)SrxMnO3 and Sm(1-x)SrxMnO3 with 0 ≤ х ≤ 0.3 was conducted. A steep rise of thermopower as well as giant values of magneto thermopower and magnetoresistivity were observed near Curie temperature ТС in compounds with 0.15 ≤ х ≤ 0.3. On the other hand, no special features were found in case of х = 0. It has been known that compounds with 0.1 ≤ х ≤ 0.3 consist of ferromagnetic clusters of ferron (magnetic polaron) type located in A-type antiferromagnetic matrix. An increase of thermopower near ТС is caused by ferrons as with the application of magnetic field or temperatures higher than ТС thermopower falls sharply due to the destruction of ferrons. So, the value of thermopower is directly connected to the number of magnetic polarons in sample. Therefore, thermopower in doped magnetic semiconductors is determined by level of doping and volume of the sample.
| Published in | American Journal of Physics and Applications (Volume 5, Issue 6) |
| DOI | 10.11648/j.ajpa.20170506.12 |
| Page(s) | 84-90 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2017. Published by Science Publishing Group |
Manganites, Thermopower, Magneto Thermopower, Magnetoresistance, Magnetic Polaron, Magnetization
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APA Style
Liudmila Koroleva, Ivan Batashev, Artem Morozov, Anatol Balbashov, Henryk Szymczak, et al. (2017). Connection of Thermopower, Magneto Thermopower with Resistivity and Magnetoresistivity in Nd(1-x)SrxMnO3 and Sm(1-x)SrxMnO3 Manganites. American Journal of Physics and Applications, 5(6), 84-90. https://doi.org/10.11648/j.ajpa.20170506.12
ACS Style
Liudmila Koroleva; Ivan Batashev; Artem Morozov; Anatol Balbashov; Henryk Szymczak, et al. Connection of Thermopower, Magneto Thermopower with Resistivity and Magnetoresistivity in Nd(1-x)SrxMnO3 and Sm(1-x)SrxMnO3 Manganites. Am. J. Phys. Appl. 2017, 5(6), 84-90. doi: 10.11648/j.ajpa.20170506.12
AMA Style
Liudmila Koroleva, Ivan Batashev, Artem Morozov, Anatol Balbashov, Henryk Szymczak, et al. Connection of Thermopower, Magneto Thermopower with Resistivity and Magnetoresistivity in Nd(1-x)SrxMnO3 and Sm(1-x)SrxMnO3 Manganites. Am J Phys Appl. 2017;5(6):84-90. doi: 10.11648/j.ajpa.20170506.12
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Download@article{10.11648/j.ajpa.20170506.12,
author = {Liudmila Koroleva and Ivan Batashev and Artem Morozov and Anatol Balbashov and Henryk Szymczak and Anna Slawska-Waniewska and Sabina Lewinska},
title = {Connection of Thermopower, Magneto Thermopower with Resistivity and Magnetoresistivity in Nd(1-x)SrxMnO3 and Sm(1-x)SrxMnO3 Manganites},
journal = {American Journal of Physics and Applications},
volume = {5},
number = {6},
pages = {84-90},
doi = {10.11648/j.ajpa.20170506.12},
url = {https://doi.org/10.11648/j.ajpa.20170506.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpa.20170506.12},
abstract = {An experimental study of thermopower, magneto thermopower, magnetoresistivity and magnetization of Nd(1-x)SrxMnO3 and Sm(1-x)SrxMnO3 with 0 ≤ х ≤ 0.3 was conducted. A steep rise of thermopower as well as giant values of magneto thermopower and magnetoresistivity were observed near Curie temperature ТС in compounds with 0.15 ≤ х ≤ 0.3. On the other hand, no special features were found in case of х = 0. It has been known that compounds with 0.1 ≤ х ≤ 0.3 consist of ferromagnetic clusters of ferron (magnetic polaron) type located in A-type antiferromagnetic matrix. An increase of thermopower near ТС is caused by ferrons as with the application of magnetic field or temperatures higher than ТС thermopower falls sharply due to the destruction of ferrons. So, the value of thermopower is directly connected to the number of magnetic polarons in sample. Therefore, thermopower in doped magnetic semiconductors is determined by level of doping and volume of the sample.},
year = {2017}
}
TY - JOUR T1 - Connection of Thermopower, Magneto Thermopower with Resistivity and Magnetoresistivity in Nd(1-x)SrxMnO3 and Sm(1-x)SrxMnO3 Manganites AU - Liudmila Koroleva AU - Ivan Batashev AU - Artem Morozov AU - Anatol Balbashov AU - Henryk Szymczak AU - Anna Slawska-Waniewska AU - Sabina Lewinska Y1 - 2017/10/13 PY - 2017 N1 - https://doi.org/10.11648/j.ajpa.20170506.12 DO - 10.11648/j.ajpa.20170506.12 T2 - American Journal of Physics and Applications JF - American Journal of Physics and Applications JO - American Journal of Physics and Applications SP - 84 EP - 90 PB - Science Publishing Group SN - 2330-4308 UR - https://doi.org/10.11648/j.ajpa.20170506.12 AB - An experimental study of thermopower, magneto thermopower, magnetoresistivity and magnetization of Nd(1-x)SrxMnO3 and Sm(1-x)SrxMnO3 with 0 ≤ х ≤ 0.3 was conducted. A steep rise of thermopower as well as giant values of magneto thermopower and magnetoresistivity were observed near Curie temperature ТС in compounds with 0.15 ≤ х ≤ 0.3. On the other hand, no special features were found in case of х = 0. It has been known that compounds with 0.1 ≤ х ≤ 0.3 consist of ferromagnetic clusters of ferron (magnetic polaron) type located in A-type antiferromagnetic matrix. An increase of thermopower near ТС is caused by ferrons as with the application of magnetic field or temperatures higher than ТС thermopower falls sharply due to the destruction of ferrons. So, the value of thermopower is directly connected to the number of magnetic polarons in sample. Therefore, thermopower in doped magnetic semiconductors is determined by level of doping and volume of the sample. VL - 5 IS - 6 ER -
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