Comment on "Magnetic and magnetoresistance in half-doped manganite La0.5Ca0.5MnO3 and La0.5Ca0.4Ag0.1MnO3"

被引：1

作者：

Gamzatov, A. G. ^{[1
]}

机构：

[1] RAS, Amirkhanov Inst Phys, Daghestan Sci Ctr, Makhachkala 367003, Russia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 664卷

关键词：

Manganite; Magnetoresistance; Low-temperature minimum; Grain boundary; CERAMIC MANGANITES; GRAIN-BOUNDARIES; RESISTIVITY; MINIMUM; TRANSPORT;

D O I：

10.1016/j.jallcom.2015.12.210

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In a recent paper, M. Smari et al. [Journal of Alloys and Compounds 644 (2015) 632.] studied the magnetic and electronic transport properties of La0.5Ca0.5MnO3 and La0.5Ca0.4Ag0.1MnO3 manganites. In the outcome analysis of experimental data on the temperature dependence of the resistivity, authors made grossest mistakes. Interpretation of low-temperature minimum on the rho(T) dependence looks doubtful and absolutely not in line with the true nature of LTM appearance in polycrystalline manganites. (c) 2015 Elsevier B.V. All rights reserved.

引用

页码：83 / 84

页数：2

共 12 条

[1] The nature of the low-temperature minimum of resistivity in ceramic manganites [J].

Auslender, MI ;

Rozenberg, E ;

Kar'kin, AE ;

Chaudhuri, BK ;

Gorodetsky, G .

JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 326 (1-2) :81-84

[2] Low temperature electrical transport in Ag substituted LaMnO3 polycrystalline pellets prepared by a pyrophoric method [J].

Battabyal, M ;

Dey, TK .

SOLID STATE COMMUNICATIONS, 2004, 131 (05) :337-342

[3] The effect of artificial grain boundaries on magneto-transport properties of charge ordered-ferromagnetic nanocomposites [J].

Das, Kalipada ;

Satpati, B. ;

Das, I. .

RSC ADVANCES, 2015, 5 (35) :27338-27346

[4] Influence of Grain Boundaries on Resistivity of Manganites La1-xKxMnO3 [J].

Gamzatov, A. G. ;

Batdalov, A. B. ;

Khanov, L. N. ;

Mankevich, A. S. ;

Korsakov, I. E. ;

Kaul', A. R. .

PHYSICS OF THE SOLID STATE, 2012, 54 (03) :617-621

[5] Spin-polarized transport in the manganite La0.85Ag0.15MnO3 [J].

Gamzatov, A. G. ;

Batdalov, A. B. ;

Melnikov, O. V. ;

Gorbenko, O. Yu. .

LOW TEMPERATURE PHYSICS, 2009, 35 (03) :219-222

[6] Spin-polarized intergrain tunneling in La-2/Sr-3(1)/3MnO3 [J].

Hwang, HY ;

Cheong, SW ;

Ong, NP ;

Batlogg, B .

PHYSICAL REVIEW LETTERS, 1996, 77 (10) :2041-2044

[7] RESISTANCE MINIMUM IN DILUTE MAGNETIC ALLOYS [J].

KONDO, J .

PROGRESS OF THEORETICAL PHYSICS, 1964, 32 (01) :37-+

[8] Coexistence of large magnetoresistance and magnetocaloric effect in monovalent doped manganite La0.5Ca0.4Li0.1MnO3 [J].

Li, Renwen ;

Tong, Wei ;

Pi, Li ;

Zhang, Yuheng .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2014, 355 :276-281

[9] Low-temperature resistivity minimum in ceramic manganites [J].

Rozenberg, E ;

Auslender, M ;

Felner, I ;

Gorodetsky, G .

JOURNAL OF APPLIED PHYSICS, 2000, 88 (05) :2578-2582

[10] Comment on 'Structural properties and electrical resistivity of Na-substituted lanthanum manganites: La1-xNaxMnO3+y (x=0.1, 0.125 and 0.15)' and 'Structure and electrical resistivity of La1-xBaxMnO3 (0. 25 ≤ x ≤ 0.35) perovskites' [J].

Rozenberg, E. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 533 :41-42

← 1 2 →