Interface effects in the magneto-optical properties of Co nanoparticles in dielectric matrix

被引：25

作者：

Clavero, C.

Armelles, G.

Margueritat, J.

Gonzalo, J.

Garcia del Muro, M.

Labarta, A.

Batlle, X.

机构：

[1] CSIC, CNM, IMM, E-28760 Madrid, Spain

[2] CSIC, Inst Opt, Laser Proc Grp, E-28006 Madrid, Spain

[3] Univ Barcelona, Inst Fis Fonamental, E-08028 Barcelona, Spain

[4] Univ Barcelona, Inst Nanociencia & Nanotecnol, E-08028 Barcelona, Spain

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 18期

关键词：

D O I：

10.1063/1.2737126

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The authors present a study of the optical and magneto-optical properties of Co nanoparticles embedded in two amorphous dielectric matrices with different refractive indices such as ZrO2 and Al2O3. The nanostructured films were prepared by pulsed laser deposition, and the morphology and structure were studied by different characterization techniques. The optical and magneto-optical (MO) properties of the Co inside the nanoparticles differ from those of the bulk material; in particular, a decrease in the MO constants is found. These properties are found to depend on the nanoparticle size and on the dielectric matrix, due to the different nanoparticle-matrix interfaces appearing in both cases. (C) 2007 American Institute of Physics.

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页数：3

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共 20 条

[1] Surface plasma resonance and magneto-optical enhancement in composites containing multicore-shell structured nanoparticles [J].

Abe, M ;

Suwa, T .

PHYSICAL REVIEW B, 2004, 70 (23) :1-15

[2] Finite-size effects in fine particles: magnetic and transport properties [J].

Batlle, X ;

Labarta, A .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2002, 35 (06) :R15-R42

[3] THEORY OF VOIGT EFFECT IN FERROMAGNETIC MATERIALS [J].

CAREY, R ;

THOMAS, BWJ .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1974, 7 (17) :2362-2368

[4] Size effects in the magneto-optical response of Co nanoparticles -: art. no. 024441 [J].

Clavero, C ;

Cebollada, A ;

Armelles, G ;

Huttel, Y ;

Arbiol, J ;

Peiró, F ;

Cornet, A .

PHYSICAL REVIEW B, 2005, 72 (02)

[5] Size mediated control of the optical and magneto-optical properties of Co nanoparticles in ZrO2 [J].

Clavero, C. ;

Sepulveda, B. ;

Armelles, G. ;

Konstantinovic, Z. ;

Garcia del Muro, M. ;

Labarta, A. ;

Batlle, X. .

JOURNAL OF APPLIED PHYSICS, 2006, 100 (07)

[6] Permanent magnetism, magnetic anisotropy, and hysteresis of thiol-capped gold nanoparticles -: art. no. 087204 [J].

Crespo, P ;

Litrán, R ;

Rojas, TC ;

Multigner, M ;

de la Fuente, JM ;

Sánchez-López, JC ;

García, MA ;

Hernando, A ;

Penadés, S ;

Fernández, A .

PHYSICAL REVIEW LETTERS, 2004, 93 (08) :087204-1

[7] Magnetic behavior of Fe:Al2O3 nanocomposite films produced by pulsed laser deposition [J].

Dempsey, NM ;

Ranno, L ;

Givord, D ;

Gonzalo, J ;

Serna, R ;

Fei, GT ;

Petford-Long, AK ;

Doole, RC ;

Hole, DE .

JOURNAL OF APPLIED PHYSICS, 2001, 90 (12) :6268-6274

[8] Critical size for exchange bias in ferromagnetic-antiferromagnetic particles [J].

Dobrynin, AN ;

Ievlev, DN ;

Temst, K ;

Lievens, P ;

Margueritat, J ;

Gonzalo, J ;

Afonso, CN ;

Zhou, SQ ;

Vantomme, A ;

Piscopiello, E ;

Van Tendeloo, G .

APPLIED PHYSICS LETTERS, 2005, 87 (01)

[9] Tunneling magnetoresistance in Co-ZrO2 granular thin films -: art. no. 045418 [J].

Hattink, BJ ;

del Muro, MG ;

Konstantinovic, Z ;

Batlle, X ;

Labarta, A ;

Varela, M .

PHYSICAL REVIEW B, 2006, 73 (04)

[10] WIDTH OF CLUSTER PLASMON RESONANCES - BULK DIELECTRIC FUNCTIONS AND CHEMICAL INTERFACE DAMPING [J].

HOVEL, H ;

FRITZ, S ;

HILGER, A ;

KREIBIG, U ;

VOLLMER, M .

PHYSICAL REVIEW B, 1993, 48 (24) :18178-18188