Phonon-phason coupling in a Mg-Ga-Al-Zn icosahedral quasicrystal

被引：21

作者：

Edagawa, K ^{[1
]}

机构：

[1] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 2005年 / 85卷 / 09期

关键词：

D O I：

10.1080/09500830500321191

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Precise X-ray diffraction measurements have revealed that phonon (conventional) strain is introduced at the phase transition from an icosahedral quasicrystal to its orthorhombic crystal approximant in a Mg-Ga-Al-Zn alloy. From the magnitude of the measured phonon strain, the phonon-phason coupling constant has been evaluated. This constant is approximately -0:03 mu (mu: shear modulus) and it is in good agreement with the result of a theoretical calculation reported previously (W.-J. Zhu and C. L. Henley, Europhys. Lett. 46 748 (1999)). This is the first study that experimentally evaluates the phonon-phason coupling constant in any existing quasicrystalline phase.

引用

收藏

页码：455 / 462

页数：8

相关论文

共 23 条

[1] SYMMETRY, STABILITY, AND ELASTIC PROPERTIES OF ICOSAHEDRAL INCOMMENSURATE CRYSTALS [J].

BAK, P .

PHYSICAL REVIEW B, 1985, 32 (09) :5764-5772

[2] Phason softening in the AlPdMn icosahedral phase [J].

Boudard, M ;

deBoissieu, M ;

Letoublon, A ;

Hennion, B ;

Bellissent, R ;

Janot, C .

EUROPHYSICS LETTERS, 1996, 33 (03) :199-204

[3] Phase transition and diffuse scattering studies in the Al-Cu-Fe ternary system [J].

Boudard, M ;

Létoublon, A ;

de Boissieu, M ;

Ishimasa, T ;

Mori, M ;

Elkaim, E ;

Lauriat, JP .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 294 :217-220

[4] Phason fluctuations in i-AlPdRe and i-CdYb phases [J].

de Boissieu, M ;

Takakura, H ;

Bletry, M ;

Guo, JQ ;

Tsai, AP .

JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 342 (1-2) :265-270

[5] DIFFUSE-SCATTERING AND PHASON ELASTICITY IN THE ALPDMN ICOSAHEDRAL PHASE [J].

DEBOISSIEU, M ;

BOUDARD, M ;

HENNION, B ;

BELLISSENT, R ;

KYCIA, S ;

GOLDMAN, A ;

JANOT, C ;

AUDIER, M .

PHYSICAL REVIEW LETTERS, 1995, 75 (01) :89-92

[6] STRUCTURE OF A HIGH-ORDER ICOSAHEDRAL APPROXIMANT PHASE IN MG-GA-AL-ZN SYSTEM [J].

EDAGAWA, K ;

SUZUKI, K ;

ICHIHARA, M ;

TAKEUCHI, S ;

KAMIYA, A ;

MIZUTANI, U .

PHILOSOPHICAL MAGAZINE LETTERS, 1991, 64 (02) :95-103

[7] ICOSAHEDRAL AND APPROXIMANT PHASES IN A MG-GA-AL-ZN ALLOY AND THEIR ELECTRICAL RESISTIVITIES [J].

EDAGAWA, K ;

NAITO, N ;

TAKEUCHI, S .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1992, 65 (05) :1011-1023

[8] INDEXING PROBLEMS IN QUASICRYSTAL DIFFRACTION [J].

ELSER, V .

PHYSICAL REVIEW B, 1985, 32 (08) :4892-4898

[9]

HENLEY CL, 1991, QUASICRYSTALS STATE, P111

[10] PHASON SOFTENING AND STRUCTURAL TRANSITIONS IN ICOSAHEDRAL QUASI-CRYSTALS [J].

ISHII, Y .

PHYSICAL REVIEW B, 1992, 45 (10) :5228-5239