(C2H5NH3)2CuCl4:: A physical system for the experimental investigation of intrinsic localized modes

被引：33

作者：

Lai, R ^{[1
]}

Sievers, AJ ^{[1
]}

机构：

[1] Cornell Univ, Atom & Solid State Phys Lab, Ithaca, NY 14853 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.81.1937

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The weak dissipation of spin waves in magnetic materials makes antiferromagnets realistic candidates for the experimental observation of intrinsic localized modes. Our molecular dynamics simulations with different antiferromagnets reveal that the lowest lying uniform spin wave mode of the antiferromagnet (C2H5NH3)(2)CuCl4 is unstable and that it can be driven sufficiently hard with a 1 Oe cw microwave held to generate intrinsic localized spin wave modes.

引用

页码：1937 / 1940

页数：4

共 22 条

[1] Interference of mode instabilities and pattern formation in anharmonic lattices [J].

Burlakov, VM .

PHYSICAL REVIEW LETTERS, 1998, 80 (18) :3988-3991

[2] EFFECT OF MAGNETIC DIPOLAR INTERACTION ON ANTI-FERROMAGNETIC RESONANCE IN (C2H5NH3)2CUCL4 [J].

CHIKAMATSU, M ;

TANAKA, M ;

YAMAZAKI, H .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1981, 50 (09) :2876-2883

[3] Discrete breathers [J].

Flach, S ;

Willis, CR .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1998, 295 (05) :181-264

[4] MODULATIONAL INSTABILITIES IN DISCRETE LATTICES [J].

KIVSHAR, YS ;

PEYRARD, M .

PHYSICAL REVIEW A, 1992, 46 (06) :3198-3205

[5] Identification of an intrinsic localized spin-wave resonance in antiferromagnetic chains with single-ion easy-plane anisotropy [J].

Lai, R ;

Sievers, AJ .

PHYSICAL REVIEW B, 1997, 55 (18) :11937-11940

[6] Intrinsic localized spin-wave modes in antiferromagnetic chains with single-ion easy-axis anisotropy [J].

Lai, R ;

Kiselev, SA ;

Sievers, AJ .

PHYSICAL REVIEW B, 1996, 54 (18) :12665-12668

[7] Intrinsic localized spin-wave resonances in ferromagnetic chains with nearest- and next-nearest-neighbor exchange interactions [J].

Lai, R ;

Kiselev, SA ;

Sievers, AJ .

PHYSICAL REVIEW B, 1997, 56 (09) :5345-5354

[8] Modulational instability of nonlinear spin waves in easy-axis antiferromagnetic chains [J].

Lai, R ;

Sievers, AJ .

PHYSICAL REVIEW B, 1998, 57 (06) :3433-3443

[9] SOLITARY EXCITATIONS IN ONE-DIMENSIONAL MAGNETS [J].

MIKESKA, HJ ;

STEINER, M .

ADVANCES IN PHYSICS, 1991, 40 (03) :191-356

[10]

MORRISH AH, 1965, PHYSICAL PRINCIPLES, P623

← 1 2 3 →