HEAT-CAPACITY ANOMALIES IN NAKC4H6O6.4H2O STUDIED WITH A CONDUCTION-TYPE CALORIMETER

被引：9

作者：

DEY, PK ^{[2
]}

SOM, KK

CHOWDHURY, KR

SARKAR, BK

CHAUDHURI, BK

机构：

[1] RBC COLL,NAIHATI,W BENGAL,INDIA

[2] INDIAN ASSOC CULTIVAT SCI,DEPT SOLID STATE PHYS,CALCUTTA 700032,W BENGAL,INDIA

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.47.3001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using a conduction-type calorimeter we have reinvestigated the phase transition in Rochelle salt (or NaKC4H6O6.4H2O) at temperature T(c0)=212 K reported by Bronowska [J. Appl. Crystallog. 14, 203 (1981)] from structural- and thermal-expansion studies, In contrast to some of the previously reported negative heat capacity anomalies in Rochelle salt at T(c0) and T(c1)=256 K, we observed only positive heat-capacity anomalies at the three temperatures T(c0)=212 K, T(c1)=256 K, and T(c2)=297 K.

引用

页码：3001 / 3004

页数：4

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