Ferroelastic phase transition in LiCsSO4 embedded into molecular sieves

被引：15

作者：

Borisov, B. F. ^{[1
]}

Charnaya, E. V. ^{[1
,2
]}

Baryshnikov, S. V. ^{[3
]}

Pirozerskii, A. L. ^{[1
]}

Bugaev, A. S. ^{[4
]}

Tien, Cheng ^{[2
]}

Lee, M. K. ^{[2
]}

Michel, D. ^{[5
]}

机构：

[1] St Petersburg State Univ, Inst Phys, St Petersburg 198504, Petrodvorets, Russia

[2] Natl Cheng Kung Univ, Dept Phys, Tainan 70101, Taiwan

[3] Blagoveschensk State Pedag Univ, Blagoveshchensk 675002, Russia

[4] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia

[5] Univ Leipzig, Fac Phys & Geosci, D-04103 Leipzig, Germany

来源：

PHYSICS LETTERS A | 2010年 / 375卷 / 02期

关键词：

Nanocomposite; Ferroelastic phase transition; Nanoconfinement; LiCsSO4; Ultrasound; MCM-41; FERROELECTRIC PARTICLES; CRYSTAL; CONFINEMENT; GLASS;

D O I：

10.1016/j.physleta.2010.11.008

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Acoustic studies of a nanocomposite consisted of MCM-41 molecular sieves with nanoparticles of ferroelastic LiCsSO4 within pores were carried out. The critical softening of the transverse ultrasound velocity was observed which evidenced the ferroelastic phase transition in confined particles. The transition was moved to low temperatures compared to that in bulk LiCsSO4. It is shown that acoustic methods are very suitable to reveal the ferroelastic phase transitions under nanoconfinement. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：183 / 186

页数：4

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