Magnetic properties, magnetoresistivity and magnetocaloric effect in GdxLa1-x-MnSi alloys

被引：3

作者：

Ivanova, T. I. ^{[1
,2
]}

Nikitin, S. A. ^{[1
]}

Suski, W. ^{[2
,3
]}

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

Ovtchenkova, I. A. ^{[1
]}

Badurski, D. ^{[3
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119992, Russia

[2] Int Lab High Magnet Fields & Low Temp, Wroclaw, Poland

[3] Polish Acad Sci, W Trzebiatowski Inst Low Temp & Struct Res, PL-50950 Wroclaw 2, Poland

来源：

JOURNAL OF RARE EARTHS | 2009年 / 27卷 / 04期

关键词：

magnetocaloric effect; magnetoresistivity; magnetic phase transition; itinerant magnetism; rare earths;

D O I：

10.1016/S1002-0721(08)60316-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The results of magnetization, magnetoresistivity and magnetocaloric effect (MCE) studies performed on polycrystalline samples of the GdxLa1-xMnSi (x=0.5, 0.6, 0.7, 0.8, 0.9, 1.0) compounds were presented. Complex measurements were carried out on the GdxLa1-xMnSi compounds to determine the influence of substitution in the rare earth (R) sublattice on the magnetic and related properties of these compounds. The compounds with x <= 0.6 demonstrated two magnetic phase transitions (ferromagnetic to paramagnetic and antiferromagnetic to ferromagnetic) both of which were first order. Anomalies in the magnetocaloric effect, electroresistivity and magnetoresistivity were observed in the temperature ranges of the magnetic phase transitions. The temperature dependences of MCE and magnetoresistivity for these compounds correlated with the temperature dependence of magnetization.

引用

页码：684 / 687

页数：4

共 6 条

[1] A study of the La1-xYxMnSi (0≤x≤0.8) solid solution by magnetization and neutron diffraction measurements
Ijjaali, I
Welter, R
Venturini, G
Malaman, B
Ressouche, E
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1998, 270 (1-2) : 63 - 72
[2] NIKITIN SA, 1991, FIZ TVERD TELA+, V33, P1640
[3] Magnetic ordering and magnetic transitions in GdMnSi compound
Ovtchenkova, I. A.
Nikitin, S. A.
Ivanova, T. I.
Tskhadadze, G. A.
Skourski, Yu. V.
Suski, W.
Nizhankovski, V. I.
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 451 (1-2) : 450 - 453
[4] Magnetocaloric effect and magnetoresistance in GdxLa1-xMnSi compounds
Ovtchenkova, I. A.
Nikitin, S. A.
Ivanova, T. I.
Tskhadadze, G. A.
Chistyakov, O. D.
Badurski, D.
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2006, 300 (01) : E493 - E496
[5] Szytula A., 1992, HDB MAGNETIC MAT, V6, P86
[6] Magnetic study of the new TiNiSi-type TbMnSi, DyMnSi and NdMnGe compounds
Welter, R
Venturini, G
Ijjaali, I
Malaman, B
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 205 (2-3) : 221 - 233

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