Raman scattering cross section of spin ladders

被引：4

作者：

Orignac, E

Citro, R

机构：

[1] Rutgers State Univ, Serin Phys Lab, Piscataway, NJ 08855 USA

[2] LPTENS, F-75231 Paris 05, France

[3] Univ Salerno, Dipartimento Sci Fisiche ER Caianiello, I-84081 Baronissi, SA, Italy

[4] INFM, Unita Salerno, Baronissi, SA, Italy

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.62.8622

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Raman scattering spectra from magnetic excitations in an antiferromagnetic spin-1/2 two leg ladder is investigated for weak and strong interladder coupling. In the first case, a cusp in the Raman intensify is obtained at a frequency twice the gap. In the second case, a peak at twice the gap replaces the cusp. We discuss the relevance of our calculation to recent experiments on CaV2O5 and Sr14Cu24O41.

引用

收藏

页码：8622 / 8625

页数：4

相关论文

共 30 条

[1] Doping effects in the Sr14Cu24O41-type structure: A Raman scattering study [J].

Abrashev, MV ;

Thomsen, C ;

Surtchev, M .

PHYSICA C, 1997, 280 (04) :297-303

[2] Soliton bound states in the Raman spectrum of pure and doped spin-Peierls chains [J].

Augier, D ;

Sorensen, E ;

Riera, J ;

Poilblanc, D .

PHYSICAL REVIEW B, 1999, 60 (02) :1075-1081

[3] Elementary excitations in dimerized and frustrated Heisenberg chains [J].

Bouzerar, G ;

Kampf, AP ;

Japaridze, GI .

PHYSICAL REVIEW B, 1998, 58 (06) :3117-3123

[4] Raman scattering from frustrated quantum spin chains [J].

Brenig, W .

PHYSICAL REVIEW B, 1997, 56 (05) :2551-2555

[5] Spin dynamics and transport in gapped one-dimensional Heisenberg antiferromagnets at nonzero temperatures [J].

Damle, K ;

Sachdev, S .

PHYSICAL REVIEW B, 1998, 57 (14) :8307-8339

[6] Spin dynamics of the spin-ladder dimer-chain material Sr14Cu24O41 [J].

Eccleston, RS ;

Uehara, M ;

Akimitsu, J ;

Eisaki, H ;

Motoyama, N ;

Uchida, S .

PHYSICAL REVIEW LETTERS, 1998, 81 (08) :1702-1705

[7] SCATTERING OF LIGHT BY 1- AND 2-MAGNON EXCITATIONS [J].

FLEURY, PA ;

LOUDON, R .

PHYSICAL REVIEW, 1968, 166 (02) :514-&

[8] Raman, infrared and optical spectra of the spin-Peierls compound NaV2O5 [J].

Golubchik, SA ;

Isobe, M ;

Ivlev, AN ;

Mavrin, BN ;

Popova, MN ;

Sushkov, AB ;

Ueda, Y ;

Vasil'ev, AN .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1997, 66 (12) :4042-4046

[9] SPIN LADDERS WITH SPIN GAPS - A DESCRIPTION OF A CLASS OF CUPRATES [J].

GOPALAN, S ;

RICE, TM ;

SIGRIST, M .

PHYSICAL REVIEW B, 1994, 49 (13) :8901-8910

[10] Raman scattering from magnetic excitations in the spin-ladder compounds CaV2O5 and MgV2O5 [J].

Konstantinovic, MJ ;

Popovic, ZV ;

Isobe, M ;

Ueda, Y .

PHYSICAL REVIEW B, 2000, 61 (22) :15185-15188