PRESSURE-INDUCED CONTINUOUS PHASE-TRANSITION OF CHARGE-DENSITY-WAVE STATE IN A LINEAR-CHAIN COMPLEX

被引：16

作者：

KURODA, N ^{[1
]}

SAKAI, M ^{[1
]}

NISHINA, Y ^{[1
]}

SASAKI, K ^{[1
]}

机构：

[1] TOHOKU UNIV,FAC ENGN,DEPT ENGN SCI,SENDAI,MIYAGI 980,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.68.3056

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

[Pt(en)2][Pt(en)2Cl2](ClO4)4 (en = ethylenediamine) is round to undergo a novel phase transition from the charge-density-wave (CDW) state to a new phase under hydrostatic pressure. The new phase appears at 3 GPa and coexists with the CDW state up to 6 GPa, at least. The volume ratio between the two coexisting phases measured by Raman scattering spectroscopy changes continuously with pressure. The result is discussed in terms of the theoretical approach to the polymorphic phase transition developed recently by Bassler, Sasaki, and Griffiths. It is suggested that kink solitons play an important role in this phase transition.

引用

页码：3056 / 3059

页数：4

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