The magnetocaloric effect in Er2Fe17 near the magnetic phase transition

被引：15

作者：

Alvarez-Alonso, Pablo ^{[1
]}

Gorria, Pedro ^{[2
]}

Sanchez Marcos, Jorge ^{[3
]}

Sanchez Llamazares, Jose L. ^{[4
]}

Blanco, Jesus A. ^{[5
]}

机构：

[1] Univ Basque Country, Dept Elect & Elect, E-48940 Leioa, Spain

[2] Univ Oviedo, EPI, Dept Fis, E-33203 Gijon, Spain

[3] Univ Autonoma Madrid, Dept Quim Fis Aplicada, E-28049 Madrid, Spain

[4] IPCyT, Div Mat Avanzados, San Luis Potosi 78216, Mexico

[5] Univ Oviedo, Dept Fis, E-33007 Oviedo, Spain

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2013年 / 25卷 / 49期

关键词：

DEMAGNETIZING FACTORS; CRITICAL-POINT; REFRIGERATION; TEMPERATURE; EQUATION; ALLOYS; STATE; FIELD;

D O I：

10.1088/0953-8984/25/49/496010

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Recent investigations in R2Fe17 intermetallic compounds have evidenced that these materials present a moderate magnetocaloric effect (MCE) near room temperature. A series of accurate magnetization measurements was carried out to show that the value of the demagnetizing factor has a significant influence on the absolute MCE value of Er2Fe17. In addition, the critical exponents determined from heat capacity and magnetization measurements allow us to describe the field dependence of the observed MCE around the Curie temperature.

引用

页数：6

共 49 条

[1] AMORPHICITY, HETEROGENEITY, AND THE ARROTT PLOTS [J].

AHARONI, A .

JOURNAL OF APPLIED PHYSICS, 1984, 56 (12) :3479-3484

[2] Influence of magnetic fluctuations in the magnetocaloric effect on rare-earth intermetallic compounds [J].

Alvarez, P. ;

Gorria, P. ;

Blanco, J. A. .

PHYSICAL REVIEW B, 2011, 84 (02)

[3] Enhanced refrigerant capacity and magnetic entropy flattening using a two-amorphous FeZrB(Cu) composite [J].

Alvarez, Pablo ;

Sanchez Llamazares, Jose L. ;

Gorria, Pedro ;

Blanco, Jesus A. .

APPLIED PHYSICS LETTERS, 2011, 99 (23)

[4] Nanocrystalline Nd2Fe17 synthesized by high-energy ball milling: crystal structure, microstructure and magnetic properties [J].

Alvarez, Pablo ;

Gorria, Pedro ;

Franco, Victorino ;

Sanchez Marcos, Jorge ;

Perez, Maria J. ;

Sanchez Llamazares, Jose L. ;

Puente Orench, Ines ;

Blanco, Jesus A. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2010, 22 (21)

[5] Magnetovolume and magnetocaloric effects in Er2Fe17 [J].

Alvarez-Alonso, Pablo ;

Gorria, Pedro ;

Blanco, Jesus A. ;

Sanchez-Marcos, Jorge ;

Cuello, Gabriel J. ;

Puente-Orench, Ines ;

Alberto Rodriguez-Velamazan, Jose ;

Garbarino, Gaston ;

de Pedro, Imanol ;

Rodriguez Fernandez, Jesus ;

Sanchez Llamazares, Jose L. .

PHYSICAL REVIEW B, 2012, 86 (18)

[6]

[Anonymous], 1993, PHYSICA B

[7] APPROXIMATE EQUATION OF STATE FOR NICKEL NEAR ITS CRITICAL TEMPERATURE [J].

ARROTT, A ;

NOAKES, JE .

PHYSICAL REVIEW LETTERS, 1967, 19 (14) :786-&

[8] The effect of demagnetization on the magnetocaloric properties of gadolinium [J].

Bahl, C. R. H. ;

Nielsen, K. K. .

JOURNAL OF APPLIED PHYSICS, 2009, 105 (01)

[9] Magnetic and transport properties of Fe-Zr-B-(Cu) amorphous alloys [J].

Barandiaran, JM ;

Gorria, P ;

Orue, I ;

FernandezGubieda, ML ;

Plazaola, F ;

Sal, JCG ;

Barquin, LF ;

Fournes, L .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1997, 9 (26) :5671-5685

[10] Excellent magnetocaloric properties of melt-extracted Gd-based amorphous microwires [J].

Bingham, N. S. ;

Wang, H. ;

Qin, F. ;

Peng, H. X. ;

Sun, J. F. ;

Franco, V. ;

Srikanth, H. ;

Phan, M. H. .

APPLIED PHYSICS LETTERS, 2012, 101 (10)

← 1 2 3 4 5 →