Ln0.7Ca0.3MnO3 (Ln = Nd, Sm, La)의 자기적 전기적 특성

전검배; 임흥수; 이찬규; 구본흔; 이상민; 정명화; 조영훈; Gom Bai Chon; Hung Su Im; Chan Gyu Lee; Bon Heun Koo; Sang M. Lee; Myung Hwa Jung; Young Hun Jo

Korean Journal of Materials Research, Vol.17, No.4, 203-206, April, 2007

DOI10.3740/MRSK.2007.17.4.203 Export Citation

Ln0.7Ca0.3MnO3 (Ln = Nd, Sm, La)의 자기적 전기적 특성

Magnetic and Electrical Properties of Ln0.7Ca0.3MnO3 (Ln = Nd, Sm, La)

전검배, 임흥수, 이찬규, 구본흔^†, 이상민, 정명화¹, 조영훈¹

창원대학교 나노·신소재공학부
¹한국기초과학연구원 양자물성팀

Gom Bai Chon, Hung Su Im, Chan Gyu Lee, Bon Heun Koo^†, Sang M. Lee, Myung Hwa Jung¹, and Young Hun Jo¹

School of Nano and Advanced Materials Engineering, Changwon National University, Changwon, 641-773, Republic of Korea
¹Material Research Team, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea

E-mail:

Effects of doping rare earth elements on Ln site of Ln0.7Ca0.3MnO3 (Ln = Nd, Sm and La) were examined from structure, magnetic and electrical properties. Size of a-axis increased as following order of La < Nd < Sm, whereas c-axis was not much changed. Curie temperatures of 170 K for Nd0.7Ca0.3MnO3, 110 K for Sm0.7Ca0.3MnO3 and 250 K for La0.7Ca0.3MnO3 were obtained. This result coincides with change of Mn-O bond length causing by a-axis lattice constant. The highest magnetroresistance ratios were 22% at 77 K for Sm0.7Ca0.3MnO3, 32% at 110 K for Nd0.7Ca0.3MnO3, and 33% at 180 K for La0.7Ca0.3MnO3.

Keywords:Colossal Magnetroresistance(CMR);Ln0.7Ca0.3MnO3(Ln = Nd;Sm;La);TC;MR ratio;lattice change

[References]

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Van Santen JH, Jonker GH, Physica, 16, 49 (1954)
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Millis AJ, Littlewood PB, Shraiman BI, Phys. Rev. Lett., 74, 5144 (1995)
Millis AJ, Shraiman BI, Mueller R, Phys. Rev. Lett., 77, 175 (1966)
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Abramovich AI, Koroleva LI, Michurin AV, Gorbenko OY, Kau AR, Physica B, 293, 38 (2000)
Zhu XB, Liu SM, Sheng ZG, Zhao BG, Lu WJ, Song WH, Dai JM, Sun YP, Physica B, 369, 299 (2005)
Yotsuya T, Jpn. J. Appl. Phys., 35, L23 (1996)
Chon GB, Koo BH, Lee CG, Korean Journal of aterials Research, 16(1), 44 (2006)
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[Referenced By]

[1] Zener C, Phys. Rev., 82(3), 403 (1951)

[2] Jin S, Tiefel TH, Mccormack M, Fastnacht RA, Ramesh R, Chen LH, Science, 264(5157), 413 (1994)

[3] Li YH, Thomas KA, De Silva PSIPN, Chohen LF, Goyal A, Venkatesam T, MacManus-Driscoll JL, J. Mater. Res., 13(8), 2161 (1998)

[4] Van Santen JH, Jonker GH, Physica, 16, 49 (1954)

[5] Zener C, Phys. Rev., 81, 440 (1951)

[6] Millis AJ, Littlewood PB, Shraiman BI, Phys. Rev. Lett., 74, 5144 (1995)

[7] Millis AJ, Shraiman BI, Mueller R, Phys. Rev. Lett., 77, 175 (1966)

[8] Deteresa JM, Ibarra MR, Algarabel PA, Ritter C, Marquina C, Blasco J, Garcia J, Delmoral A, Arnold Z, Nature, 386(6622), 256 (1997)

[9] Prester M, Phys. Rev. B, 54, 606 (1996)

[10] Abramovich AI, Koroleva LI, Michurin AV, Gorbenko OY, Kau AR, Physica B, 293, 38 (2000)

[11] Zhu XB, Liu SM, Sheng ZG, Zhao BG, Lu WJ, Song WH, Dai JM, Sun YP, Physica B, 369, 299 (2005)

[12] Yotsuya T, Jpn. J. Appl. Phys., 35, L23 (1996)

[13] Chon GB, Koo BH, Lee CG, Korean Journal of aterials Research, 16(1), 44 (2006)

[14] Shuk P, Tichonova L, Guth U, Solid State Ion., 68(3-4), 177 (1994)

[15] Mahendiran R, Tiwary SK, Raychaudhuri AK, Ramakrishnan TV, Mahesh R, Rangavittal N, Rao CNR, Phys. Rev. B, 53(6), 3348 (1996)

[16] Song MS, Seo SI, Cho NH, Lee JY, Journal of Korean Institute of Electrical and Electronic Material Engineers, 12(11), 1040 (1999)

[17] Radaelli PG, Marezio M, Hwang HY, Cheong SW, Batlogg B, Phys. Rev. B, 54, 8992 (1996)

[18] Teresa JMD, Ibarra MR, Garcia J, Blasco J, Ritter C, Algarabel PA, Marquina C, Del Moral A, Phys. Rev. Lett., 76, 3392 (1996)

[19] Kim CS, Shin IB, Lee HS, Kim CS, New Phys., 29, 772 (1989)

[20] Archibald W, Zhou JS, Goodenough JB, Phys. Rev. B, 53, 14445 (1996)