The specific heat of terbium and erbium trihydrides

Drulis M.; Kulej J.; Hackemer A.Zaleski A.Drulis H.

首页> 外文期刊>Solid State Communications >The specific heat of terbium and erbium trihydrides

【24h】

The specific heat of terbium and erbium trihydrides

机译：The specific heat of terbium and erbium trihydrides

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Specific heat measurements were made in the temperature range of 2300 K on TbH_3 and ErH_(2.98) trihydride samples. The magnetic Schottky anomaly was separated from the experimental C_p(T) data by subtracting the lattice heat contribution of the non-magnetic LuH_3 hydride. The Schottky contribution was explained by the effect of the crystal field on the magnetic ions. The full splitting of the crystal field level was determined for the Tb~(3+) ion in TbH_3 as δE=573K with the singlet Γ1 ground state. The overall energy splitting of the Er ~(3+) ion in ErH_3 is much larger and cannot be determined directly from Schottky contribution analysis. Nevertheless, the doublet seems to be the ground state and the magnetic contribution in the specific heat is determined by thermal excitations within five of the eight possible crystal field energy levels in ErH_(2.98) trihydride. The polynomial functions to fit the measured Cp(T) values are given. The thermodynamic functions of entropy and enthalpy for several temperatures are calculated.

著录项

来源
《Solid State Communications》 |2010年第30期|1338-1341|共4页
作者
Drulis M.; Kulej J.; Hackemer A.Zaleski A.Drulis H.;
展开▼
作者单位

Polish Academy of Sciences, Trzebiatowski Institute of Low Temperature and Structure Research, P.O. Box 1410, 50-950 Wroc?aw 2, Poland;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类固体物理学;
关键词
Crystal field; Heat capacity; Metal hydrides; Thermodynamic properties;

The specific heat of terbium and erbium trihydrides

摘要

著录项

相关主题

期刊订阅