Comparison of magnetic and thermoelectric properties of (Nd,Ca)BaCo2O5.5 and (Nd,Ca)CoO3

被引：13
作者：
Kolesnik, S. [1 ]
Dabrowski, B. [1 ,2 ]
Chmaissem, O. [1 ,2 ]
Wojciechowski, K. [3 ]
Swierczek, K. [4 ]
机构：
[1] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA
[2] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
[3] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, Dept Inorgan Chem, PL-30059 Krakow, Poland
[4] AGH Univ Sci & Technol, Fac Energy & Fuels, Dept Hydrogen Energy, PL-30059 Krakow, Poland
来源：
JOURNAL OF APPLIED PHYSICS | 2012年 / 111卷 / 07期
关键词：
112; LNBACO(2)O(5.50+/-DELTA);
D O I：
10.1063/1.3679561
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetic and thermoelectric properties of Nd1-xCaxBaCo2O5.5 and Nd1-xCaxCoO3 have been studied. Ca doping in Nd1-xCaxBaCo2O5.5 (x <= 0.2) preserves the metal to insulator transition (MIT) at 340-360 K. While the antiferromagnetic state disappears upon doping, the Curie temperature is increasing and becomes close to MIT for x > 0.12. The magnetic susceptibility of Nd1-xCaxCoO3 is paramagnetic for x up to 0.2, similar to the parent compound, with some indication of cluster-glass-like behavior at temperatures below 30K. The increasing effective paramagnetic moments with doping suggest a low spin state of Co3+ and a high spin state of Co4+. Maximum observed ZT reaches a value close to 0.2 for x = 0.15 at 800K, which is one of the highest values for perovskite cobaltites. (C) 2012 American Institute of Physics. [doi:10.1063/1.3679561]
引用
收藏
页数：3
相关论文
共 14 条
  • [1] Oxygen nonstoichiometry, structures, and physical properties of YBaCo2O5+x (0.00 ≤ x ≤ 0.52)
    Akahoshi, D
    Ueda, Y
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 2001, 156 (02) : 355 - 363
  • [2] Probing phase coexistence and stabilization of the spin-ordered ferrimagnetic state by calcium addition in the Y(Ba1-xCax)Co2O5.5 layered cobaltites using neutron diffraction
    Aurelio, G.
    Curiale, J.
    Sanchez, R. D.
    Cuello, G. J.
    [J]. PHYSICAL REVIEW B, 2007, 76 (21)
  • [3] Spin-state ordering and magnetic structures in the cobaltites YBaCo2O5+δ (δ=0.50 and 0.44)
    Khalyavin, D. D.
    Argyriou, D. N.
    Amann, U.
    Yaremchenko, A. A.
    Kharton, V. V.
    [J]. PHYSICAL REVIEW B, 2007, 75 (13)
  • [4] Thermoelectric power of HoBaCo2O5.5:: Possible evidence of the spin blockade in cobaltites -: art. no. 026401
    Maignan, A
    Caignaert, V
    Raveau, B
    Khomskii, D
    Sawatzky, G
    [J]. PHYSICAL REVIEW LETTERS, 2004, 93 (02) : 026401 - 1
  • [5] Structural and magnetic studies of ordered oxygen-deficient perovskites LnBaCo2O5+δ, closely related to the "112" structure
    Maignan, A
    Martin, C
    Pelloquin, D
    Nguyen, N
    Raveau, B
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 1999, 142 (02) : 247 - 260
  • [6] Magnetoresistance in the oxygen deficient LnBaCo(2)O(5.4) (Ln=Eu, Gd) phases
    Martin, C
    Maignan, A
    Pelloquin, D
    Nguyen, N
    Raveau, B
    [J]. APPLIED PHYSICS LETTERS, 1997, 71 (10) : 1421 - 1423
  • [7] Transport and magnetic properties of R1-xAxCoO3 (R = La, Pr and Nd; A = Ba, Sr and Ca)
    Masuda, H
    Fujita, T
    Miyashita, T
    Soda, M
    Yasui, Y
    Kobayashi, Y
    Sato, M
    [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2003, 72 (04) : 873 - 878
  • [8] Spin structure and magnetic phase transitions in TbBaCo2O5.5 -: art. no. 214407
    Plakhty, VP
    Chernenkov, YP
    Barilo, SN
    Podlesnyak, A
    Pomjakushina, E
    Moskvin, EV
    Gavrilov, SV
    [J]. PHYSICAL REVIEW B, 2005, 71 (21)
  • [9] Switching from unusual to usual ferromagnetism in "112" LnBaCo2O5.50±δ:: By calcium doping
    Seikh, Md. Motin
    Raveau, B.
    Caignaert, V.
    Pralong, V.
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2008, 320 (21) : 2676 - 2681
  • [10] Expansion of ferromagnetism by calcium doping in the ordered oxygen deficient perovskite EuBaCo2O5.50 ± δ
    Seikh, Md Motin
    Caignaert, V.
    Pralong, V.
    Simon, Ch
    Raveau, B.
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2008, 20 (01)
12