Folded modes in the infrared spectra of the spin-Peierls phase of CuGeO3

被引：19

作者：

Popova, MN ^{[1
]}

Sushkov, AB

Golubchik, SA

Vasil'ev, AN

Leonyuk, LI

机构：

[1] Russian Acad Sci, Inst Spect, Troitsk 142092, Moscow Region, Russia

[2] Moscow MV Lomonosov State Univ, Moscow 119899, Russia

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.57.5040

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polarized far-infrared transmittance spectra of CuGeO3 single crystals were measured at different temperatures (6 K<T<300 K). Two spectral lines, at 284.2 cm(-1) in E parallel to c polarization and at 311.7 cm(-1) in E parallel to b polarization, appear at the temperature of the spin-Peierls transition and grow in intensity with decreasing temperature. We assign these spectral features to the folded modes of the dimerized lattice. We discuss a possible role of the spin-phonon interaction in the formation of the 311.7 cm(-1) feature.

引用

页码：5040 / 5043

页数：4

共 17 条

[1] Structural analysis of CuGeO3: Relation between nuclear structure and magnetic interaction [J].

Braden, M ;

Wilkendorf, G ;

Lorenzana, J ;

Ain, M ;

McIntyre, GJ ;

Behruzi, M ;

Heger, G ;

Dhalenne, G ;

Revcolevschi, A .

PHYSICAL REVIEW B, 1996, 54 (02) :1105-1116

[2] HIGH-FIELD ELECTRON-SPIN-RESONANCE AND MAGNETIZATION IN THE DIMERIZED PHASE OF CUGEO3 [J].

BRILL, TM ;

BOUCHER, JP ;

VOIRON, J ;

DHALENNE, G ;

REVCOLEVSCHI, A ;

RENARD, JP .

PHYSICAL REVIEW LETTERS, 1994, 73 (11) :1545-1548

[3] OBSERVATION OF THE SPIN-PEIERLS TRANSITION IN LINEAR CU2+ (SPIN-1/2) CHAINS IN AN INORGANIC COMPOUND CUGEO3 [J].

HASE, M ;

TERASAKI, I ;

UCHINOKURA, K .

PHYSICAL REVIEW LETTERS, 1993, 70 (23) :3651-3654

[4] Pressure effects on the dimerization in the spin-Peierls state of CuGeO3 [J].

Katano, S ;

Fujita, O ;

Akimitsu, J ;

Nishi, M .

PHYSICAL REVIEW B, 1995, 52 (21) :15364-15367

[5] RAMAN-SCATTERING STUDY OF CUGEO3 IN THE SPIN-PEIERLS PHASE [J].

KUROE, H ;

SEKINE, T ;

HASE, M ;

SASAGO, Y ;

UCHINOKURA, K ;

KOJIMA, H ;

TANAKA, I ;

SHIBUYA, Y .

PHYSICAL REVIEW B, 1994, 50 (22) :16468-16474

[6] Optical observation of the interplay between magnetic and elastic energy in a spin-Peierls system [J].

Li, G ;

Musfeldt, JL ;

Wang, YJ ;

Jandl, S ;

Poirier, M ;

Revcolevschi, A ;

Dhalenne, G .

PHYSICAL REVIEW B, 1996, 54 (22) :15633-15636

[7] THEORY OF ABSORPTION AND SCATTERING OF LIGHT BY MAGNETIC CRYSTALS [J].

MORIYA, T .

JOURNAL OF APPLIED PHYSICS, 1968, 39 (2P2) :1042-&

[8] Infrared investigation of the broken-symmetry ground state in GeCuO3 [J].

Musfeldt, JL ;

Wang, YJ ;

Jandl, S ;

Poirier, M ;

Revcolevschi, A ;

Dhalenne, G .

PHYSICAL REVIEW B, 1996, 54 (01) :469-473

[9] Frustration-induced Raman scattering in CuGeO3 [J].

Muthukumar, VN ;

Gros, C ;

Wenzel, W ;

Valenti, R ;

Lemmens, P ;

Eisener, B ;

Guntherodt, G ;

Weiden, M ;

Geibel, C ;

Steglich, F .

PHYSICAL REVIEW B, 1996, 54 (14) :R9635-R9638

[10] INELASTIC NEUTRON-SCATTERING STUDY OF THE LATTICE-DYNAMICS IN CUGEO3 [J].

NISHI, M ;

FUJITA, O ;

AKIMITSU, J .

PHYSICA B, 1995, 210 (02) :149-156

← 1 2 →