Studi Pengaruh Doping Cu pada Separasi Fasa La0.5Mn1-xCuxO3(x=0.05; 0.15; 0.20) pada Temperatur Rendah
| Main Authors: | Widhya Budiawan, author, Add author: Budhy Kurniawan, supervisor, Add author: Muhammad Hikam, examiner, Add author: Azwar Manaf, examiner, Add author: Soehardjo Poertadji, examiner |
|---|---|
| Format: | Masters Bachelors |
| Terbitan: |
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia
, 2008
|
| Online Access: |
https://lib.ui.ac.id/detail?id=20236433 |
| ctrlnum |
20236433 |
|---|---|
| fullrecord |
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<dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><type>Thesis:Masters</type><title>Studi Pengaruh Doping Cu pada Separasi Fasa La0.5Mn1-xCuxO3(x=0.05; 0.15; 0.20) pada Temperatur Rendah</title><creator>Widhya Budiawan, author</creator><creator>Add author: Budhy Kurniawan, supervisor</creator><creator>Add author: Muhammad Hikam, examiner</creator><creator>Add author: Azwar Manaf, examiner</creator><creator>Add author: Soehardjo Poertadji, examiner</creator><publisher>Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia</publisher><date>2008</date><subject/><description>Pengaruh doping Cu pada material La0,5Ca0,5Mn1-xCuxO3 telah dikaji dengan variasi konsentrasi doping x=0,05; 0,15; dan 0,20. Pada setiap doping menunjukkan temperatur Curie, TC, di atas 225 K dan temperatur Neel (charge order), TCO, sedikit di bawah 150 K dan tidak terjadi perbedaan untuk masingmasing doping. Hasil pengukuran magnetisasi material terhadap medan magnet luar pada temperatur rendah (di bawah TCO) menunjukkan pemisahan kurva yang semakin jelas. Pemisahan ini menunjukkan lebih dari satu fasa muncul secara bersama-sama (koeksistensi) yang berkorelasi dengan meningkatnya fraksi charge ordered-antiferromagnetic (CO-AFM) dan menurunnya fraksi ferromagnetik (FM).
......The influence of Cu doping in La0,5Ca0,5Mn1-xCuxO3 has been reported by different concentration of doping x=0,05; 0,15; and 0,20. Each of doping samples hows that Curie temperature, TC, above 225 K and Neel temperature (charge order), TCO, below 150 K and does not show any difference for each doping. Result of magnetization measurement by external magnetic field at low temperature (below TCO) shows the appearance of curve separation clearly. Such separation indicates that coexistence of more than one phase correlated with the increase of fraction of charge ordered antiferromagnetic (CO-AFM) and the decrease of ferromagnetic (FM) fraction.</description><identifier>https://lib.ui.ac.id/detail?id=20236433</identifier><recordID>20236433</recordID></dc>
|
| format |
Thesis:Masters Thesis Thesis:Bachelors |
| author |
Widhya Budiawan, author Add author: Budhy Kurniawan, supervisor Add author: Muhammad Hikam, examiner Add author: Azwar Manaf, examiner Add author: Soehardjo Poertadji, examiner |
| title |
Studi Pengaruh Doping Cu pada Separasi Fasa La0.5Mn1-xCuxO3(x=0.05; 0.15; 0.20) pada Temperatur Rendah |
| publisher |
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia |
| publishDate |
2008 |
| url |
https://lib.ui.ac.id/detail?id=20236433 |
| contents |
Pengaruh doping Cu pada material La0,5Ca0,5Mn1-xCuxO3 telah dikaji dengan variasi konsentrasi doping x=0,05; 0,15; dan 0,20. Pada setiap doping menunjukkan temperatur Curie, TC, di atas 225 K dan temperatur Neel (charge order), TCO, sedikit di bawah 150 K dan tidak terjadi perbedaan untuk masingmasing doping. Hasil pengukuran magnetisasi material terhadap medan magnet luar pada temperatur rendah (di bawah TCO) menunjukkan pemisahan kurva yang semakin jelas. Pemisahan ini menunjukkan lebih dari satu fasa muncul secara bersama-sama (koeksistensi) yang berkorelasi dengan meningkatnya fraksi charge ordered-antiferromagnetic (CO-AFM) dan menurunnya fraksi ferromagnetik (FM).
......The influence of Cu doping in La0,5Ca0,5Mn1-xCuxO3 has been reported by different concentration of doping x=0,05; 0,15; and 0,20. Each of doping samples hows that Curie temperature, TC, above 225 K and Neel temperature (charge order), TCO, below 150 K and does not show any difference for each doping. Result of magnetization measurement by external magnetic field at low temperature (below TCO) shows the appearance of curve separation clearly. Such separation indicates that coexistence of more than one phase correlated with the increase of fraction of charge ordered antiferromagnetic (CO-AFM) and the decrease of ferromagnetic (FM) fraction. |
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