High magnetic field study of the specific heat of CeB6 and LaB6
High magnetic field study of the specific heat of CeB6 and LaB6
复制标题
CeB6和LaB6比热的强磁场研究
DOI：
10.1051/jphys:01986004701011300
复制
发表时间：
1986
期刊：
影响因子：
--
通讯作者：
T. Kasuya
中科院分区：
文献类型：
--
作者：
Y. Peysson;C. Ayache;J. Rossat;S. Kunii;T. Kasuya
在很大的温度范围和高达8特斯拉的磁场下，测量了CEB 6和实验室6的比热。数据证实，在外加磁场的作用下，CEB6的中间相即所谓的第二相是有利的。实际上，转变温度和与之相关的比热异常都被磁场强烈地提高了。为了更准确地得到CEB6比热的磁性贡献，我们测量了非磁性化合物LaB6。对这一磁性贡献的分析证实，Ce3+基态是Γ8四重态，与Γ7二重态的分裂估计大于5 0 0K测量dans在大范围的温度和Sous Champ Magnetique juqua 8T强化的温度转变和L的异常的chaleur massique dans CEB6在第二阶段。6号实验室不含磁性物质的测定。确认D‘un Etat基础四胞胎Γ8-Pour Ce 3+
The specific heats of CeB 6 and LaB 6 have been measured over a large range of temperatures and under magnetic fields up to 8 teslas. The data confirm that the intermediate phase of CeB 6 , the so-called phase II, is favoured by an applied magnetic field. Actually both the transition temperature and the associated specific heat anomaly are strongly increased by a magnetic field. To get the magnetic contribution from the CeB 6 specific heat with more accuracy, we have measured the non-magnetic compound LaB 6 . The analysis of this magnetic contribution confirms that the Ce 3+ ground state is the Γ 8 quartet, and the splitting with the Γ 7 doublet is estimated to be larger than 500 K Mesures dans un large domaine de temperatures et sous champ magnetique jusqu'a 8 T. Renforcement de la temperature de transition et de l'anomalie de chaleur massique dans CeB 6 en phase II intermediaire. Determination de la contribution magnetique a la chaleur massique de CeB 6 a partir des mesures de la chaleur massique de LaB 6 non magnetique. Confirmation d'un etat fondamental quadriplet Γ 8 pour Ce 3+