Glassy magnetic behavior in nanocrystalline mechanically alloyed Fe-W-Ag

被引：4

作者：

De Toro, JA ^{[1
]}

Arranz, MA ^{[1
]}

Barbero, AJ ^{[1
]}

de la Torre, MAL ^{[1
]}

Riveiro, JM ^{[1
]}

机构：

[1] Univ Castilla La Mancha, Dept Fis Aplicada, E-13071 Ciudad Real, Spain

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2001年 / 231卷 / 2-3期

关键词：

mechanical alloying; spin-glass behavior; nanocrystalline; interacting particles;

D O I：

10.1016/S0304-8853(01)00159-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The origin of the spin-glass-like low-temperature phase in mechanically alloyed Fe30W40Ag30 has been investigated with hysteresis loops, AC and DC susceptibility measurements. The magnetic glassy behavior is revealed by the characteristic irreversibility between the zero-field-cooled (ZFC) and the field-cooled (FC) magnetization, and by the small frequency sensitivity of the AC susceptibility vs. temperature peak. The collective freezing of interacting nanoclusters is suggested as the mechanism responsible for the observed properties. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：291 / 293

页数：3

共 7 条

[1] Soft to hard magnetic anisotropy in nanostructured magnets [J].

Arcas, J ;

Hernando, A ;

Barandiaran, JM ;

Prados, C ;

Vazquez, M ;

Marin, P ;

Neuweiler, A .

PHYSICAL REVIEW B, 1998, 58 (09) :5193-5196

[2] Spin-glass-like behavior in mechanically alloyed nanocrystalline Fe-Al-Cu [J].

De Toro, JA ;

de la Torre, MAL ;

Riveiro, JM ;

Puche, RS ;

Gómez-Herrro, A ;

Otero-Díaz, LC .

PHYSICAL REVIEW B, 1999, 60 (18) :12918-12923

[3] Investigation of static and dynamic magnetic properties of Joule heated granular Co10Cu90 ribbons [J].

Fiorani, D ;

Testa, AM ;

Agostinelli, E ;

Imperatori, P ;

Caciuffo, R ;

Rinaldi, D ;

Tiberto, P ;

Vinai, F ;

Allia, P .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 202 (01) :123-132

[4]

Hansen MF, 1998, J MAGN MAGN MATER, V184, P262, DOI 10.1016/S0304-8853(97)01165-7

[5] Spin-glass-like ordering in giant magnetoresistive CuCo [J].

Idzikowski, B ;

Rössler, UK ;

Eckert, D ;

Nenkov, K ;

Müller, KH .

EUROPHYSICS LETTERS, 1999, 45 (06) :714-720

[6] DETERMINATION OF PARAMAGNETIC AND FERROMAGNETIC COMPONENTS OF MAGNETIZATION AND MAGNETORESISTANCE OF GRANULAR CO/AG FILMS [J].

STEARNS, MB ;

CHENG, YD .

JOURNAL OF APPLIED PHYSICS, 1994, 75 (10) :6894-6899

[7] SPIN-GLASS BEHAVIOR OF AMORPHOUS CO2GE SYNTHESIZED BY MECHANICAL MILLING [J].

ZHOU, GF ;

BAKKER, H .

PHYSICAL REVIEW LETTERS, 1994, 72 (14) :2290-2293

← 1 →