Magnetic properties and magnetocaloric effect in La1.4−x Ce x Ca1.6Mn2O7 perovskites synthesized by sol–gel method
Source abstract
Abstract
The magnetic properties and magnetocaloric effect near the critical phase transition temperatures of La1.4−x Ce x Ca1.6Mn2O7 (x = 0, 0.2) double layered manganites are analyzed. Polycrystalline nanopowders of La1.4Ca1.6Mn2O7 and La1.2Ce0.2Ca1.6Mn2O7 were successfully synthesized by a sol–gel method. The magnetic measurements suggest an antiferromagnetic alignment of the Ce and Mn moments in La1.2Ce0.2Ca1.6Mn2O7. Both Ce3+ and Ce4+ ions are present in the doped sample, as indicated by the XPS spectra. A moderate magnetocaloric effect was found for both samples, with the maximum entropy change located at temperatures near the magnetic transition ones. The high RCP(S) values together with the broadened magnetic entropy curves suggest the possibility to use these materials for magnetic refrigeration devices.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Advanced Thermoelectric Materials and Devices · Advanced Condensed Matter Physics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (27)
Show source-provided references
1. Perring TG, Aeppli G, Moritomo Y, Tokura Y (1997) Phys Rev Lett 78:319710.1103/PhysRevLett.78.3197 ↗
2. Asano H, Hayakawa J, Matsui M (1997) Phys Rev B 56:539510.1103/PhysRevB.56.5395 ↗
3. Moritomo Y, Maruyama Y, Akimoto T, Nakamura A (1997) Phys Rev B 56:R705710.1103/PhysRevB.56.R7057 ↗
4. Hur NH, Kim JT, Yoo KH, Park YH, Park JC, Chi EO, Kwon YU (1998) Phys Rev B 57:1074010.1103/PhysRevB.57.10740 ↗
5. Kimura T, Tokura Y (2000) Annu Rev Mater Sci 30:45110.1146/annurev.matsci.30.1.451 ↗
6. Fawcett ID, Kim E, Greenblatt M, Croft M, Bendersky LA (2000) Phys Rev B 62:648510.1103/PhysRevB.62.6485 ↗
7. Chatterjee Sandip, Chou PH, Chang CF, Hong IP, Yang HD (2000) Phys Rev B 61:610610.1103/PhysRevB.61.6106 ↗
8. Ling CD, Millburn JE, Mitchell JF, Argyriou DN, Linton J, Bordallo HN (2000) Phys Rev B 62:1509610.1103/PhysRevB.62.15096 ↗
9. Coldea AI, Blundell SJ, Steer CA, Mitchell JF, Pratt FL (2002) Phys Rev Lett 89:27760110.1103/PhysRevLett.89.277601 ↗
10. Allodi G, Bimbi M, De Renzi R, Baumann C, Apostu M, Suryanarayanan R, Revcolevschi A (2008) Phys Rev B 78:06442010.1103/PhysRevB.78.064420 ↗
11. Asano H, Hayakawa J, Matsui M (1996) Appl Phys Lett 68:363810.1063/1.115755 ↗
12. Asano H, Hayakawa J, Matsui M (1997) Appl Phys Lett 70:230310.1063/1.118843 ↗
13. Argyriou DN, Mitchell JF, Radaelli PG, Bordallo HN, Cox DE, Medarde M, Jorgensen JD (1999) Phys Rev B 59:869510.1103/PhysRevB.59.8695 ↗
14. Zhou Tie-Jun, Yu Z, Zhong W, Xu XN, Zhang HH, Du YW (1999) J Appl Phys 85:797510.1063/1.369387 ↗
15. Wang A, Cao G, Liu Y, Long Y, Li Y, Feng Z, Ross JH Jr (2005) J Appl Phys 97:10390610.1063/1.1888045 ↗
16. Cherif K, Zemni S, Dhahri J, Oumezzine M, Said M, Vincent H (2007) J Alloys Compd 432:3010.1016/j.jallcom.2006.06.007 ↗
17. Zhu H, Song H, Zhang YH (2002) Appl Phys Lett 81:341610.1063/1.1518160 ↗
18. Zhao X, Chen W, Zong Y, Diao SL, Yan XJ, Zhu MG (2009) J Alloys Compd 469:6110.1016/j.jallcom.2008.02.021 ↗
19. Tetean R, Himcinschi C, Burzo E (2008) J Optoelectron Adv Mater 10:849
20. Cruz MM, Carvalho MD, Casaca A, Bonfait G, Costa FM, Godinho M (2001) J Magn Magn Mater 226–230:80010.1016/S0304-8853(00)01400-1 ↗
21. Tasarkuyu E, Coskun A, Irmak AE, Akturk S, Unlu G, Samancioglu Y, Yucea A, Sarikurkcu C, Aksoy S, Acet M (2011) J Alloys Compd 509:371710.1016/j.jallcom.2010.12.011 ↗
22. Sundaresan A, Tholence JL, Maignan A, Raveau B, Suard E, Bordet P (2001) J Magn Magn Mater 226–230:77710.1016/S0304-8853(00)01323-8 ↗
23. Sundaresan A, Caignaert V, Maignan A, Raveau B (1999) Phys Rev B 60:53310.1103/PhysRevB.60.533 ↗
24. Shi L, Wang Y, Zhou SM, Chu SN, Guo YQ, Zhao JY (2011) J Appl Phys 109:12390910.1063/1.3597822 ↗
25. Martinez G, Iglesias JR, Ruppenthal AR, Avignon JM, Lacroix C (2001) J Magn Magn Mater 226–230:21410.1016/S0304-8853(00)01295-6 ↗
26. Galakhov VR, Demeter M, Bartkowski S, Neumann M, Ovechkina NA, Kurmaev EZ, Logachevskaya NI, Mukovskii YM, Mitchell J, Ederer DL (2002) Phys Rev B 65:11310210.1103/PhysRevB.65.113102 ↗
27. Zhou KW, Zhuang YH, Li JQ, Deng JQ, Zhu QM (2006) Solid State Commun 137:27510.1016/j.ssc.2005.11.023 ↗