Tunnelling magnetoresistance of misfit layered cobaltite Ca3-xYxCo4O9 (x=0, 0.1, 0.2)

被引：5

作者：

Noguchi, S ^{[1
]}

Sekimoto, T

Ishida, T

机构：

[1] Osaka Prefecture Univ, Dept Phys & Elect, Sakai, Osaka 5998531, Japan

[2] JST CREST, Kawaguchi, Saitama 3320012, Japan

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2004年 / 16卷 / 48期

关键词：

D O I：

10.1088/0953-8984/16/48/045

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have measured the electrical resistance and the high-field magnetoresistance (MR) up to 30 T for nano-scale misfit layered compounds Ca3-xYxCo4O9 (x = 0, 0.1, 0.2). The resistance shows the characteristic behaviour proportional to exp(rootT(0)/T) of the variable range tunnelling at low temperatures. The negative MR ratio increases remarkably with decreasing temperature and with increasing x at temperatures below 20 K. We propose that the MR in the cobaltite can be explained by the magnetic tunnelling effect.

引用

页码：S5769 / S5772

页数：4

共 50 条

[41] Dielectric properties of layered perovskite Sr1-xAxBi2Nb2O9 ferroelectrics (A=La, Ca and x=0,0.1)
Forbess, MJ
Seraji, S
Wu, Y
Nguyen, CP
Cao, GZ
APPLIED PHYSICS LETTERS, 2000, 76 (20) : 2934 - 2936
[42] Dielectric properties of layered perovskite Sr1-xAxBi2Nb2O9 ferroelectrics (A=La, Ca and x=0,0.1)
Forbess, M.J.
Seraji, S.
Wu, Y.
Nguyen, C.P.
Cao, G.Z.
2000, American Institute of Physics Inc. (76)
[43] Three forms of the misfit layered cobaltite [Ca2CoO3] [CoO2]1.62 -: A 4D structural investigation
Lambert, S
Leligny, H
Grebille, D
JOURNAL OF SOLID STATE CHEMISTRY, 2001, 160 (02) : 322 - 331
[44] Investigation of wide range magnetoresistance in La0.7Ca0.3−xAgxMnO3 (0 ≤ x ≤ 0.2) system
Rashmi Yadav
Vilas Shelke
Journal of Materials Science: Materials in Electronics, 2013, 24 : 1141 - 1145
[45] Dielectric properties of Sr1+XBi2-(2/3)X(VXTa1-X)2O9 [X=0, 0.1 and 0.2] ceramics
Sridarane, R
Kalaiselvi, BJ
Akila, B
Subramanian, S
Murugan, R
PHYSICA B-CONDENSED MATTER, 2005, 357 (3-4) : 439 - 444
[46] GIANT MAGNETORESISTANCE EFFECT IN THE LAYERED PEROVSKITES (Ca,La)4Mn3O10
Lincoln, F. J.
Goodman, P.
Witte, N. S.
March, R. H.
ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 1996, 52 : C388 - C388
[47] Phonon and thermal transport properties of the misfit-layered oxide thermoelectric Ca3Co4O9 from first principles
Rebola, Alejandro
Klie, Robert F.
Zapol, Peter
Oeguet, Serdar
APPLIED PHYSICS LETTERS, 2014, 104 (25)
[48] Influence of the calcination procedure on the thermoelectric properties of calcium cobaltite Ca3Co4O9
Sophie Bresch
Björn Mieller
Christian Selleng
Thomas Stöcker
Ralf Moos
Torsten Rabe
Journal of Electroceramics, 2018, 40 : 225 - 234
[49] Influence of the calcination procedure on the thermoelectric properties of calcium cobaltite Ca3Co4O9
Bresch, Sophie
Mieller, Bjoern
Selleng, Christian
Stoecker, Thomas
Moos, Ralf
Rabe, Torsten
JOURNAL OF ELECTROCERAMICS, 2018, 40 (03) : 225 - 234
[50] Structure and Magnetic Investigations of Ca1+xYxMnO3 (x=0, 0.1, 0.2, 0.3) and Mn4+/Mn3+ Relation Aanalysis
Zagorac, J.
Boskovic, S.
Matovic, B.
Babic-Stojic, B.
SCIENCE OF SINTERING, 2010, 42 (02) : 221 - 232

← 1 2 3 4 5 →