Influence of A-site disorder on the half-doped manganites

2006 ◽  
Vol 100 (5) ◽  
pp. 053902 ◽  
Author(s):  
Jiyu Fan ◽  
Langsheng Ling ◽  
Li Pi ◽  
Yang Wang ◽  
Yue Ying ◽  
...  
Keyword(s):  
Site Disorder ◽  
Doped Manganites ◽  
A Site

A-site-disorder-dependent percolative transport and Griffiths phase in doped manganites

2004 ◽  
Vol 70 (22) ◽  
Author(s):  
N. Rama ◽  
M. S. Ramachandra Rao ◽  
V. Sankaranarayanan ◽  
P. Majewski ◽  
S. Gepraegs ◽  
...  
Keyword(s):  
Griffiths Phase ◽  
Site Disorder ◽  
Doped Manganites ◽  
A Site

A-site disorder driven sharp field-induced transition and collapse of charge ordering in Sm1/2Ca1/2-xSrxMnO3

2012 ◽  
Vol 112 (7) ◽  
pp. 073905 ◽  
Author(s):  
Sk. Sabyasachi ◽  
A. Karmakar ◽  
S. Majumdar ◽  
S. Giri ◽  
S. Das ◽  
...  
Keyword(s):  
Charge Ordering ◽  
Site Disorder ◽  
A Site

Microstructure evolution and magnetoresistance of the A-site ordered Ba-doped manganites

2007 ◽  
Vol 41 (5) ◽  
pp. 507-511
Author(s):  
S. V. Trukhanov ◽  
L. S. Lobanovski ◽  
M. V. Bushinsky ◽  
V. A. Khomchenko ◽  
V. V. Fedotova ◽  
...  
Keyword(s):  
Microstructure Evolution ◽  
Doped Manganites ◽  
A Site

Effects of A-site disorder in the properties of A2CoMnO6(A = La, Tb)

2014 ◽  
Vol 26 (38) ◽  
pp. 386001 ◽  
Author(s):  
J Blasco ◽  
J García ◽  
G Subías ◽  
J Stankiewicz ◽  
S Lafuerza ◽  
...  
Keyword(s):  
Site Disorder ◽  
A Site

A-site disorder induced collapse of charge-ordered state and phase separated phase in manganites

2006 ◽  
Vol 89 (22) ◽  
pp. 222505 ◽  
Author(s):  
K. F. Wang ◽  
F. Yuan ◽  
S. Dong ◽  
D. Li ◽  
Z. D. Zhang ◽  
...  
Keyword(s):  
Site Disorder ◽  
A Site ◽  
Ordered State

Study of A-Site Disorder Dependent Structural, Magnetic, and Magnetocaloric Properties in La0.7-xSmxCa0.3MnO3Manganites

2013 ◽  
Vol 52 (10S) ◽  
pp. 10MC12 ◽  
Author(s):  
Mohammad Shafique Anwar ◽  
Faheem Ahmed ◽  
Seung Rok Lee ◽  
Rehan Danish ◽  
Bon Heun Koo
Keyword(s):  
Site Disorder ◽  
Magnetocaloric Properties ◽  
A Site

A-Site Cational Size Disorder Effects in La0.55Ca0.45MnO3

2007 ◽  
Vol 336-338 ◽  
pp. 351-355
Author(s):  
K.F. Wang ◽  
X.P. Liu ◽  
Q.C. Li ◽  
Y. Wang ◽  
L.F. Wang ◽  
...  
Keyword(s):  
Ground State ◽  
Curie Point ◽  
Atomic Fraction ◽  
Ionic Radii ◽  
Disorder Effects ◽  
Radial Distortion ◽  
Site Disorder ◽  
Glass Insulator ◽  
A Site ◽  
Cation Size

The effects of A-site cation size disorder in ABO3 type ferromagnetic metallic La0.55Ca0.45MnO3 system have been studied by substituting La3+ and Ca2+ by other ions, while keeping the valency of Mn ions and the A-site cation mean radius <rA> constant in the substituted compounds with different A-site ionic radii variance σ2 = Σi (xiri 2 − <rA>2), where xi and ri are the atomic fraction and ionic radii of i-type ions at A-site, respectively. It is revealed that the A-site disorder induces the decreasing of the magnetization and the increasing of the resistivity. The ferromagnetic Curie point TC decreases with the increasing of the A-site ionic radii variance, too. Moreover, the ground state of the system transits from ferromagnetic metal to glass insulator upon increasing variance of the A-site ionic radii from 0.0003 for La0.55Ca0.45MnO3 to 0.009 for Gd0.55Sr0.45MnO3. It is argued that the suppression of the ferromagnetism is ascribed to the enhanced radial distortion of the MnO6 octahedra due to the increasing A-site disorder.

Effect of A-site deficiency on electrical transport properties of YSZ doped manganites

2002 ◽  
Vol 37 (13) ◽  
pp. 2205-2212 ◽  
Author(s):  
Z.C Xia ◽  
S.L Yuan ◽  
F Tu ◽  
C.Q Tang ◽  
S Liu ◽  
...  
Keyword(s):  
Transport Properties ◽  
Electrical Transport ◽  
Electrical Transport Properties ◽  
Doped Manganites ◽  
A Site
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