Oxygen plasma-induced enhancement of structural, electrical properties, and thermopower of La0.5Sr0.5MnO3
Source abstract
Abstract
Half-doped manganites has proven itself to be candid material for different magnetic-based devises. Various physical properties of pellet size half-doped La0.5Sr0.5MnO3 manganite treated with oxygen plasma and its comparison with the pristine samples is reported in this article. The impact of plasma irradiation on different properties such as structure, thermoelectric power and electrical resistivity were studied and compared before exposure. The crystal structure or symmetry remains unaffected due to plasma exposure. The Mn4+/Mn3+ ratio decreases after exposing to plasma compared to the pristine samples. It is observed that La0.5Sr0.5MnO3 samples exhibit insulating behaviour before and after plasma exposure. The resistivity increases appreciably after plasma treatment which may be credited to the reduction in the bond angle of Mn–O–Mn as well as the creation of oxygen vacancies. The negativity of the thermopower is seen at all temperatures attributing it to the electrons behaving as the dominant charge carriers and also shows that the magnitude is temperature dependent.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Advanced Thermoelectric Materials and Devices · Electronic and Structural Properties of Oxides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (47)
Show source-provided references
1. R.J. Goff, J.P. Attfield, Charge ordering in half-doped manganites. Phys. Rev. B – Condens. Matter. Mater. Phys. 70, 140404 (2004)10.1103/PhysRevB.70.140404 ↗
2. S. Harikrishnan, S. Rößler, C.M.N. Kumar, Y. Xiao, H.L. Bhat, U.K. Rößler, F. Steglich, S. Wirth, S. Elizabeth, Memory effect in Dy0.5Sr0.5MnO3 single crystals. J Phys Condens Matter 22, 346002 (2010)10.1088/0953-8984/22/34/346002 ↗
3. H.O. Wang, P. Zhao, J.J. Sun, W.S. Tan, K.P. Su, S. Huang, D.X. Huo, Investigation of magnetic response of charge ordering in half-doped La0.5Ca0.5MnO3 manganite. J. Mater. Sci. Mater. Electron. 29, 13176–13179 (2018)10.1007/s10854-018-9441-1 ↗
4. S. Banik, K. Das, T. Paramanik, N.P. Lalla, B. Satpati, K. Pradhan, I. Das, Huge magnetoresistance and ultrasharp metamagnetic transition in polycrystalline Sm0.5Ca0.25Sr0.25MnO3. NPG Asia Mater. 10, 923–930 (2018)10.1038/s41427-018-0085-7 ↗
5. H. Nhalil, S. Elizabeth, Relaxation dynamics and thermodynamic properties of glassy Tb0.5Sr0.5MnO3 single crystal. Solid. State. Commun. 253, 24–30 (2017)10.1016/j.ssc.2017.01.026 ↗
6. L.K. Joy, S. ShanmukharaoSamatham, S. Thomas, V. Ganesan, S. Al-Harthi, A. Liebig, M. Albrecht, M.R. Anantharaman, Colossal thermoelectric power in charge ordered lanthanum calcium manganites (La0.5Ca0.5MnO3). J. Appl. Phys. 116, 213701 (2014)10.1063/1.4902850 ↗
7. B.S. Nagaraja, A. Rao, G.S. Okram, Electrical, and colossal thermoelectric properties of Dy1−xSr x MnO3 manganites. J. Supercond. Nov. Magn. 28, 223–229 (2015)10.1007/s10948-014-2847-y ↗
8. D.K. Ahad, F. Shukla, S.M. Rahman, G.S. Tarachand, A.K.S. Okram, D.M. Phase, Colossal thermopower, spin states and delocalization effects in single layered La2−xSrxCoO4. Acta Mater. 135, 233–243 (2017)10.1016/j.actamat.2017.06.030 ↗
9. P. Roy, T. Maiti, Colossal change in thermopower with temperature-driven p–n-type conduction switching in LaxSr2−xTiFeO6 double perovskites. J. Phys. D: Appl. Phys. 51, 065104 (2018)10.1088/1361-6463/aaa284 ↗
10. J.H. Kim, Y.J. Song, J.S. Rhyee, B.S. Kim, S.D. Park, H.J. Lee, J.W. Shin, Small-polaron transport and thermoelectric properties of the misfit-layer composite (BiSe)1.09TaSe2/TaSe2. Phys. Rev. B 87, 224305 (2013)10.1103/PhysRevB.87.224305 ↗
11. J.M.D. Coey, M. Viret, S. Von Molnár, Mixed-valence manganites. Adv. Phys. 48, 167–293 (1999)10.1080/000187399243455 ↗
12. J.W. Feng, C. Ye, L.P. Hwang, Magnetic and magnetotransport properties in the Ni-doped La0.7Sr0.3MnO3 system. Phys Rev. B - Condens. Matter Mater. Phys 61, 12271–12276 (2000)10.1103/PhysRevB.61.12271 ↗
13. M.B. Salamon, M. Jaime, The physics of manganites: Structure and transport. Rev. Mod. Phys. 73, 583–628 (2001)10.1103/RevModPhys.73.583 ↗
14. C. Zener, Interaction between the d-shells in the transition metals. II. Ferromagnetic compounds of manganese with perovskite structure. Phys. Rev 82, 403–405 (1951)10.1103/PhysRev.82.403 ↗
15. U. Shankar, R. Pandey, A.K. Singh, Incommensurately modulated phase and charge ordering transition in nanocrystalline Nd0.5Sr0.5MnO3 perovskite. J. Appl. Phys. 123, 124301 (2018)10.1063/1.5007199 ↗
16. U. Shankar, A.K. Singh, Origin of suppression of charge ordering transition in nanocrystalline Ln0.5Ca0.5MnO3 (Ln = La, Nd, Pr) ceramics. J. Phys. Chem. C 119, 28620–28630 (2015)10.1021/acs.jpcc.5b08381 ↗
17. U. Chand, K. Yadav, A. Gaur, G.D. Varma, Effect of different synthesis techniques on structural, magnetic and magneto-transport properties of Pr0.7Sr0.3MnO3 manganite. J. Rare Earths 28, 760–764 (2010)10.1016/S1002-0721(09)60196-4 ↗
18. K.L. Yanapu, E.S.S. Manjunathrao, P.V. Reddy, Effect of synthesis techniques on magneto-transport properties of sodium-doped lanthanum manganites. J. Supercond. Nov. Magn. 29, 2991–2999 (2016)10.1007/s10948-016-3652-6 ↗
19. R. Rao, Y.Y. Han, X.C. Kan, X. Zhang, M. Wang, N.X. Qian, G.H. Zheng, Y.Q. Ma, Magnetic property under the pressure and electrical transport behavior under the magnetic field for the perovskite manganite La0.7Ca0.3MnO3. J. Alloys Compd. 837, 155476 (2020)10.1016/j.jallcom.2020.155476 ↗
20. K. Gadani, K.N. Rathod, V.G. Shrimali, B. Rajyaguru, B. Udeshi, V.S. Vadgama, D. Dhruv, A.D. Joshi, D.D. Pandya, K. Asokan, P.S. Solanki, N.A. Shah, Effect of 200 MeV Ag+15 ion irradiation on structural, microstructural and dielectric properties of Y0·95Sr0·05MnO3. Solid State Commun 318, 113975 (2020)10.1016/j.ssc.2020.113975 ↗
21. B.S. Nagaraja, A. Rao, P.D. Babu, G. Sanjeev, G.S. Okram, Influence of electron beam irradiation on the structural, electrical and thermal properties of Gd0.5Sr0.5MnO3 and Dy0.5Sr0.5MnO3 manganites. Nucl. Instruments Methods Phys. 366, 188–197 (2016)10.1016/j.nimb.2015.11.009 ↗
22. P. Chettri, U. Deka, A. Rao, G.S. Okram, V. Chandra Petwal, V.P. Verma, J. Dwivedi, R. Thomas, B.S. Nagaraja, Investigation of the effect of electron beam irradiation on the structural and transport properties of half doped Nd0.5Sr0.5MnO3 manganites. Phys. B Condens. Matter 560, 220–227 (2019)10.1016/j.physb.2019.02.016 ↗
23. P. Chettri, U. Deka, A. Rao, K.K. Nagaraja, G.S. Okram, V.C. Petwal, V.P. Verma, J. Dwivedi, Effect of high energy electron beam irradiation on the structural properties, electrical resistivity and thermopower of La0.5Sr0.5MnO3 manganites. Phys. B Condens. Matter 585, 412119 (2020)10.1016/j.physb.2020.412119 ↗
24. H.S. Kim, C.H. Lee, C.E. Lee, K.M. Kim, S.J. Noh, C.S. Hong, N.H. Hur, S.Y. Shim, H.C. Ri, Oxygen-plasma effects of a La0.7Ca0.3MnO3−δLa0.7Ca0.3MnO3−δ single crystal. Appl. Phys. Lett 79, 4177–4179 (2001)10.1063/1.1425085 ↗
25. P. Chettri, A. Sarma, G.S. Okram, A. Rao, U. Deka, Plasma augmented structural and electrical properties of half doped neodymium strontium manganites. Phys. Scr. 95, 115810 (2020)10.1088/1402-4896/abc119 ↗
26. U. Deka, A. Rao, Effects of low pressure plasma irradiation on electrical resistivity of perovskite oxide Eu1-xSrxMnO3. IOP Conf Ser. Mater. Sci. Eng. 377, 012173 (2018)10.1088/1757-899X/377/1/012173 ↗
27. P. Chettri, B.S. Nagaraja, A. Rao, U. Deka, Low-pressure air plasma induced modification of structural and electrical properties of Gd1−xSrxMnO3 manganites. Radiat. Eff. Defects Solids 176, 1092–1106 (2021)10.1080/10420150.2021.2003364 ↗
28. U. Deka, R. Prakash, A. Sarma, C.B. Dwivedi, Sheath equivalent electrical circuit model for transient sheath dynamics. Jpn. J. Appl. Physics 43, 2704–2710 (2004)10.1143/JJAP.43.2704 ↗
29. C.B. Dwivedi, U. Deka, A. Sarma, Sheath equivalent electrical circuit model for equilibrium child sheath description. Phys. Scr. 69, 108–114 (2004)10.1238/Physica.Regular.069a00108 ↗
30. M.D. Daivajna, N. Kumar, V.P.S. Awana, B. Gahtori, J. Benedict Christopher, S.O. Manjunath, K.Z. Syu, Y.K. Kuo, A. Rao, Electrical, magnetic and thermal properties of Pr0.6−xBixSr0.4MnO3 manganites. J. Alloys Compd 588, 406–412 (2014)10.1016/j.jallcom.2013.11.033 ↗
31. S.V. Trukhanov, L.S. Lobanovski, M.V. Bushinsky, V.A. Khomchenko, N.V. Pushkarev, I.O. Tyoyanchuk, A. Maignan, D. Flahaut, H. Szymczak, R. Szymczak, Influence of oxygen vacancies on the magnetic and electrical properties of La1−xSrxMnO3−x/2 manganites. Eur. Phys. J. B 42, 51–61 (2004)10.1140/epjb/e2004-00357-8 ↗
32. S.K. Sen, U.C. Barman, M.S. Manir, P. Mondal, S. Dutta, M. Paul, M.A.M. Chowdhury, M.A. Hakim, X-ray peak profile analysis of pure and Dy-doped α-MoO3 nanobelts using Debye-Scherrer, Williamson-Hall and Halder-Wagner methods Adv. Nat. Sci. Nanosci. Nanotechnol. 11, 025004 (2020)10.1088/2043-6254/ab8732 ↗
33. C.N.R. Rao, A.K. Cheetham, R. Mahesh, Giant magnetoresistance and related properties of rare-earth manganates and other oxide systems. Chem. Mater. 8, 2421–2432 (1996)10.1021/cm960201v ↗
34. H. Xie, H. Huang, N. Cao, C. Zhou, D. Niu, Y. Gao, Effects of annealing on structure and composition of LSMO thin films. Phys. B Condens. Matter 477, 14–19 (2015)10.1016/j.physb.2015.07.032 ↗
35. R. Zhao, K. Jin, Z. Xu, H. Guo, L. Wang, C. Ge, H. Lu, G. Yang, The oxygen vacancy effect on the magnetic property of the LaMnO3−δ thin films. Appl. Phys. Lett. 102, 122402 (2013)10.1063/1.4798550 ↗
36. D.A. Pawlak, M. Ito, M. Oku, K. Shimamura, T. Fukuda, Interpretation of XPS O (1s) in mixed oxides proved on mixed perovskite crystals. J. Phys. Chem. B 106, 504–507 (2002)10.1021/jp012040a ↗
37. R. Pan, Surface valence states of Mn ions and magnetic properties of La0.67Sr0.33MnO3 films. Int. J. Mater. Sci. Appl. 5, 222–227 (2016)
38. R. Bertacco, J.P. Contour, A. Barthélemy, J. Olivier, Evidence for strontium segregation in La0.7Sr0.3MnO3 thin films grown by pulsed laser deposition: consequences for tunnelling junctions. Surf. Sci. 511, 366–372 (2002)10.1016/S0039-6028(02)01546-7 ↗
39. S. Hcini, S. Zemni, A. Triki, H. Rahmouni, M. Boudard, Size mismatch, grain boundary and bandwidth effects on structural, magnetic and electrical properties of Pr0.67Ba0.33MnO3 and Pr0.67Sr0.33MnO3 perovskites. J. Alloys Compd 509, 1394–1400 (2011)10.1016/j.jallcom.2010.10.190 ↗
40. D. Emin, T. Holstein, Studies of small-polaron motion IV. Adiabatic theory of the Hall effect. Ann. Phys. (N. Y) 53, 439–520 (1969)10.1016/0003-4916(69)90034-7 ↗
41. D. Varshney, I. Mansuri, M.W. Shaikh, Y.K. Kuo, Effect of Fe and Co doping on electrical and thermal properties of La0.5Ce0.5Mn1−x(Fe, Co)xO3 manganites. Mater. Res. Bull 48, 4606–4613 (2013)10.1016/j.materresbull.2013.07.062 ↗
42. A.S. Alexandrov, Superconducting Polarons and Bipolarons, in Polarons in Advanced Materials. Springer Series in Materials Science, vol. 103, ed. by A.S. Alexandrov (Springer, Dordrecht, 2007), pp.257–310
43. S.J.F. Byrnes, Basic Theory and Phenomenology of Polarons (University of California, Berkeley, 2008)
44. Y.S. Reddy, Synthesis, characterization and magnetotransport behavior of La-based double layered manganites. Acta Phys. Pol. A 131, 1544–1549 (2017)10.12693/APhysPolA.131.1544 ↗
45. Y. Sun, X. Xu, Y. Zhang, Variable-range hopping of small polarons in mixed-valence manganites. J. Phys. Condens. Matter 12, 10475–10480 (2000)10.1088/0953-8984/12/50/309 ↗
46. A. Banerjee, S. Pal, B.K. Chaudhuri, Nature of small-polaron hopping conduction and the effect of Cr doping on the transport properties of rare-earth manganite La0.5Pb0.5Mn1−xCrxO3. J. Chem. Phys. 115, 1550–1558 (2001)10.1063/1.1378018 ↗
47. G. Venkataiah, Y. Lakshmi, P. Reddy, Influence of sintering temperature on resistivity, magnetoresistance and thermopower of La0.67Ca0.33MnO3. PMC Phys. B 1, 7 (2008)10.1186/1754-0429-1-7 ↗