Magnetic Properties of La0.9A0.1MnO3 (A: Li, Na, K) Nanopowders and Nanoceramics

被引：6

作者：

Gluchowski, Pawel ^{[1
,2
]}

Nikonkov, Ruslan ^{[1
]}

Tomala, Robert ^{[2
]}

Strek, Wieslaw ^{[2
]}

Shulha, Tatsiana ^{[3
]}

Serdechnova, Maria ^{[3
]}

Zheludkevich, Mikhail ^{[3
,4
]}

Pakalaniskis, Andrius ^{[5
]}

Skaudzius, Ramunas ^{[5
]}

Kareiva, Aivaras ^{[5
]}

Abramov, Alexander ^{[6
]}

Kholkin, Andrei ^{[6
,7
,8
]}

Bushinsky, Maxim V. ^{[9
]}

Karpinsky, Dmitry ^{[9
,10
]}

机构：

[1] Nanoceramics Inc, Okolna 2, PL-50422 Wroclaw, Poland

[2] PAS, Inst Low Temp & Struct Res, Okolna 2, PL-50422 Wroclaw, Poland

[3] Zentrum Mat Kustenforsch GmbH, Helmholtz Zentrum Geesthacht, Max Planck Str 1, DE-21502 Geesthacht, Germany

[4] Christian Albrechts Univ Kiel, Christian Albrechts Pl 4, DE-24143 Kiel, Germany

[5] Vilnius Univ, Univ G 3, LT-01513 Vilnius, Lithuania

[6] Ural Fed Univ, Sch Nat Sci & Math, Kuybysheva 48, RU-620026 Ekaterinburg, Russia

[7] Univ Aveiro, CICECO Mat Inst Averio, P-3810193 Aveiro, Portugal

[8] Univ Aveiro, Phys Dept, P-3810193 Aveiro, Portugal

[9] NAS Belarus, Sci & Pract Mat Res Ctr, P Brovki 19, BY-220072 Minsk, BELARUS

[10] South Ural State Univ, Prospekt Lenina 76, RU-454080 Chelyabinsk, Russia

来源：

MATERIALS | 2020年 / 13卷 / 07期

关键词：

multiferroic; manganites; alkali ions; ceramics; magnetization; MAGNETORESISTANCE; TRANSITION; PRESSURE;

D O I：

10.3390/ma13071788

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：

Nanocrystalline La(0.9)A(0.1)MnO(3) (where A is Li, Na, K) powders were synthesized by a combustion method. The powders used to prepare nanoceramics were fabricated via a high-temperature sintering method. The structure and morphology of all compounds were characterized by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). It was found that the size of the crystallites depended on the type of alkali ions used. The high-pressure sintering method kept the nanosized character of the grains in the ceramics, which had a significant impact on their physical properties. Magnetization studies were performed for both powder and ceramic samples in order to check the impact of the alkali ion dopants as well as the sintering pressure on the magnetization of the compounds. It was found that, by using different dopants, it was possible to strongly change the magnetic characteristics of the manganites.

引用

页数：12

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