Spin-wave propagation and transformation in a thermal gradient

被引：33

作者：

Obry, Bjoern ^{[1
]}

Vasyuchka, Vitaliy I.

Chumak, Andrii V.

Serga, Alexander A.

Hillebrands, Burkard

机构：

[1] Tech Univ Kaiserslautern, Fachbereich Phys, D-67663 Kaiserslautern, Germany

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 19期

关键词：

SATURATION MAGNETIZATION; MODES; FILMS;

D O I：

10.1063/1.4767137

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of a thermal gradient on the propagation properties of externally excited dipolar spin waves in a magnetic insulator waveguide is investigated. It is shown that spin waves propagating towards a colder region along the magnetization direction continuously reduce their wavelength. The wavelength increase of a wave propagating into a hotter region was utilized to realize its decomposition in the partial waveguide modes which are reflected at different locations. This influence of temperature on spin-wave properties is mainly caused by a change in the saturation magnetization and yields promising opportunities for the manipulation of spin waves in spin-caloritronic applications. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4767137]

引用

页数：4

共 22 条

[1] TEMPERATURE-DEPENDENCE OF THE SATURATION MAGNETIZATION OF ION-IMPLANTED YIG-FILMS [J].

ALGRA, HA ;

HANSEN, P .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1982, 29 (02) :83-86

[2]

Bauer GEW, 2012, NAT MATER, V11, P391, DOI [10.1038/nmat3301, 10.1038/NMAT3301]

[3] Mode beating of spin wave beams in ferrimagnetic Lu2.04Bi0.96Fe5O12 films [J].

Buttner, O ;

Bauer, M ;

Mathieu, C ;

Demokritov, SO ;

Hillebrands, B ;

Kolodin, PA ;

Kostylev, MP ;

Sure, S ;

Dotsch, H ;

Grimalsky, V ;

Rapoport, Y ;

Slavin, AN .

IEEE TRANSACTIONS ON MAGNETICS, 1998, 34 (04) :1381-1383

[4] THE SAGA OF YIG-SPECTRA, THERMODYNAMICS, INTERACTION AND RELAXATION OF MAGNONS IN A COMPLEX MAGNET [J].

CHEREPANOV, V ;

KOLOKOLOV, I ;

LVOV, V .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1993, 229 (03) :81-144

[5] MAGNETOSTATIC MODES OF A FERROMAGNET SLAB [J].

DAMON, RW ;

ESHBACH, JR .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1961, 19 (3-4) :308-320

[6] MAGNETOSTATIC SPIN-WAVES IN (111)-ORIENTED THIN GARNET-FILMS WITH COMBINED CUBIC AND UNIAXIAL ANISOTROPIES [J].

GIENIUSZ, R ;

SMOCZYNSKI, L .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1987, 66 (03) :366-372

[7]

Gurevich A. G., 1996, MAGNETIZATION OSCILL, p[202, 331]

[8] SATURATION MAGNETIZATION OF GALLIUM-SUBSTITUTED YTTRIUM IRON-GARNET [J].

HANSEN, P ;

ROSCHMANN, P ;

TOLKSDORF, W .

JOURNAL OF APPLIED PHYSICS, 1974, 45 (06) :2728-2732

[9]

Hillebrands B, 2000, TOP APPL PHYS, V75, P174

[10] Spin Hall effect [J].

Hirsch, JE .

PHYSICAL REVIEW LETTERS, 1999, 83 (09) :1834-1837

← 1 2 3 →