NQR STUDY OF PHASE-TRANSITIONS IN PROUSTITE AT HIGH-PRESSURE

被引：9

作者：

BAISA, D

BONDAR, A

GORDON, A

MALTSEV, S

机构：

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1979年 / 93卷 / 02期

关键词：

D O I：

10.1002/pssb.2220930240

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The 75As nuclear quadrupole resonance frequency and spin‐lattice relaxation (SLR) time are measured in proustite (Ag3AsS3) in the temperature range 4. 2 K < T < 77 K at the high hydrostatic pressure. The pressure shifts of the first‐ and second‐order phase transition (PT) temperatures are detected. The tricritical point is reached at T 55. 5 K and p = 3. 2 kbar. A theory explaining the behaviour of SLR times at the first‐order PT and in the environment of the tricritical point is developed. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：805 / 809

页数：5

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