Effect of Samarium Impurity on the Relaxation of the Magnetization of a (NdDy)(FeCo)B Alloy

被引：4

作者：

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

Kucheryaev, V. V. ^{[2
]}

Kunitsyna, E. I. ^{[1
]}

Valeev, R. A. ^{[2
]}

Morgunov, R. B. ^{[1
,2
]}

Piskorskii, V. P. ^{[2
]}

Ospennikova, O. G. ^{[2
]}

Kablov, E. N. ^{[2
]}

机构：

[1] Russian Acad Sci, Inst Problems Chem Phys, Pr Akad Semenova 1, Chernogolovka 142432, Moscow Oblast, Russia

[2] All Russia Sci Res Inst Aviat Mat VIAM, Ul Radio 17, Moscow 105005, Russia

来源：

PHYSICS OF THE SOLID STATE | 2016年 / 58卷 / 08期

基金：

俄罗斯基础研究基金会;

关键词：

VISCOSITY;

D O I：

10.1134/S1063783416080102

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Small Sm additions (similar to 1 - 3 at %) have been found to slow down the relaxation of the magnetization in a magnetic field in the ( NdDy)(FeCo)B alloy by several times. The effective "freezing" of the spontaneous relaxation of the magnetic moment is related to the substantial increase in the potential barriers for motion of domain walls when introducing Sm ions that have other symmetry of the single-ion anisotropy than that of Nd and Dy ions. The results can be used to stabilize the properties of hard magnets.

引用

页码：1582 / 1586

页数：5

共 14 条

[1] Tunable quantum tunnelling of magnetic domain walls [J].

Brooke, J ;

Rosenbaum, TF ;

Aeppli, G .

NATURE, 2001, 413 (6856) :610-613

[2] THE COEFFICIENT OF MAGNETIC VISCOSITY .2. THE TIME-DEPENDENCE OF THE MAGNETIZATION OF INTERACTING FINE-PARTICLE MAGNETIC-MATERIALS [J].

CHANTRELL, RW ;

LYBERATOS, A ;

WOHLFARTH, EP .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1986, 16 (07) :L145-L150

[3] Quantum tunneling of magnetization and related phenomena in molecular materials [J].

Gatteschi, D ;

Sessoli, R .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (03) :268-297

[4] FERROMAGNETIC DOMAIN-WALL PINNING BY A RANDOM ARRAY OF INHOMOGENEITIES [J].

GAUNT, P .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1983, 48 (03) :261-276

[5] MAGNETIC VISCOSITY IN DIFFERENT ND-FE-B MAGNETS [J].

GIVORD, D ;

TENAUD, P ;

VIADIEU, T ;

HADJIPANAYIS, G .

JOURNAL OF APPLIED PHYSICS, 1987, 61 (08) :3454-3456

[6] R2FE14B MATERIALS - INTRINSIC-PROPERTIES AND TECHNOLOGICAL ASPECTS [J].

HERBST, JF .

REVIEWS OF MODERN PHYSICS, 1991, 63 (04) :819-898

[7] Competition of magnetization mechanisms in (NdDy)(FeCo)B alloys, doped with samarium [J].

Kablov, E. N. ;

Ospennikova, O. G. ;

Piskorskii, V. P. ;

Korolev, D. V. ;

Kunitsina, E. I. ;

Dmitriev, A. I. ;

Morgunov, R. B. .

LOW TEMPERATURE PHYSICS, 2016, 42 (01) :45-49

[8] Anomalous effect of Sm additives on the magnetic properties of (Nd1-x Sm x Dy)(FeCo)B intermetallics [J].

Kablov, E. N. ;

Ospennikova, O. G. ;

Kablov, D. E. ;

Piskorskii, V. P. ;

Valeev, R. A. ;

Korolev, D. V. ;

Rezchikova, I. I. ;

Kunitsyna, E. I. ;

Talantsev, A. D. ;

Dmitriev, A. I. ;

Morgunov, R. B. .

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2015, 121 (03) :429-436

[9] Bifurcation of magnetic anisotropy caused by small addition of Sm in (Nd1-xSmxDy)(FeCo)B magnetic alloy [J].

Kablov, E. N. ;

Ospennikova, O. G. ;

Kablov, D. E. ;

Piskorskii, V. P. ;

Kunitsyna, E. I. ;

Dmitriev, A. I. ;

Valeev, R. A. ;

Korolev, D. V. ;

Rezchikova, I. I. ;

Talantsev, A. D. ;

Morgunov, R. B. .

JOURNAL OF APPLIED PHYSICS, 2015, 117 (24)

[10] Role of interphase boron diffusion in the formation of the magnetic properties of sintered (Pr, Dy)-(Fe, Co)-B materials [J].

Kablov E.N. ;

Piskorskii V.P. ;

Valeev R.A. ;

Ospennikova O.G. ;

Rezchikova I.I. ;

Moiseeva N.S. .

Russian Metallurgy (Metally), 2014, 2014 (7) :547-551

← 1 2 →