Electron-magnon diffusion and magnetization reversal detection in FePt thin films

被引：69

作者：

Mihai, A. P. ^{[1
]}

Attane, J. P. ^{[1
]}

Marty, A. ^{[1
]}

Warin, P. ^{[1
]}

Samson, Y. ^{[1
]}

机构：

[1] DRFMC CEA Grenoble, F-38054 Grenoble 9, France

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.77.060401

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We measured the dependence of the electrical resistivity on perpendicular magnetic field in FePt(10 - 32 nm)/MgO layers from 3 to 300 K. We show that the magnetoresistance is proportional to both the perpendicular magnetization of the FePt layer and the perpendicular applied field. Building on previous models, we show that this magnetoresistance can be ascribed to electron-magnon interactions, giving a linear dependence of resistivity upon magnetization in the limit of a low field to magnetocrystalline anisotropy ratio. This magnetoresistance effect can be used to follow magnetization reversal in certain conditions, with perspectives that we discuss with respect to other magnetoresistive effects.

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相关论文

共 17 条

[1] Magnetic domain wall propagation unto the percolation threshold across a pseudorectangular disordered lattice -: art. no. 257203 [J].

Attané, JP ;

Samson, Y ;

Marty, A ;

Toussaint, JC ;

Dubois, G ;

Mougin, A ;

Jamet, JP .

PHYSICAL REVIEW LETTERS, 2004, 93 (25)

[2] Thermally activated depinning of a narrow domain wall from a single defect [J].

Attané, JP ;

Ravelosona, D ;

Marty, A ;

Samson, Y ;

Chappert, C .

PHYSICAL REVIEW LETTERS, 2006, 96 (14)

[3] Domain wall pinning on strain relaxation defects in FePt(001)/Pt thin films [J].

Attané, JP ;

Samson, Y ;

Marty, A ;

Halley, D ;

Beigné, C .

APPLIED PHYSICS LETTERS, 2001, 79 (06) :794-796

[4] GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].

BAIBICH, MN ;

BROTO, JM ;

FERT, A ;

VANDAU, FN ;

PETROFF, F ;

EITENNE, P ;

CREUZET, G ;

FRIEDERICH, A ;

CHAZELAS, J .

PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2472-2475

[5] Magnetoresistance and spin electronics [J].

Barthélémy, A ;

Fert, A ;

Contour, JP ;

Bowen, M ;

Cros, V ;

De Teresa, JM ;

Hamzic, A ;

Faini, JC ;

George, JM ;

Grollier, J ;

Montaigne, F ;

Pailloux, F ;

Petroff, F ;

Vouille, C .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 242 :68-76

[6] Individual domain wall resistance in submicron ferromagnetic structures -: art. no. 157201 [J].

Danneau, R ;

Warin, P ;

Attané, JP ;

Petej, I ;

Beigné, C ;

Fermon, C ;

Klein, O ;

Marty, A ;

Ott, F ;

Samson, Y ;

Viret, M .

PHYSICAL REVIEW LETTERS, 2002, 88 (15) :4

[7] Extraordinary Hall effect in magnetic films [J].

Gerber, A ;

Milner, A ;

Karpovsky, M ;

Lemke, B ;

Habermeier, HU ;

Tuaillon-Combes, J ;

Négrier, M ;

Boisron, O ;

Mélinon, P ;

Perez, A .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 242 :90-97

[8] ELETRICAL RESISTIVITY OF FERROMAGNETIC METALS AT LOW TEMPERATURES [J].

GOODINGS, DA .

PHYSICAL REVIEW, 1963, 132 (02) :542-+

[9]

GUREVITCH AG, 1996, MAGNETIZATION OSCILL, P27205

[10] Anomaly of strain relaxation in thin ordered FePd layers -: art. no. 205408 [J].

Halley, D ;

Samson, Y ;

Marty, A ;

Bayle-Guillemaud, P ;

Beigné, C ;

Gilles, B ;

Mazille, JE .

PHYSICAL REVIEW B, 2002, 65 (20) :1-8