标题： 非中心对称CeCoGe3和LaCoGe3中的高场de Haas-van Alphen效应 显示英文标题

标题： High-Field de Haas-van Alphen Effect in non-centrosymmetric CeCoGe3 and LaCoGe3

摘要： 我们报告在非中心对称系统CeCoGe3和LaCoGe3中，在高达28特斯拉的磁场下的de Haas-van Alphen效应测量。 在两种化合物中，都在高磁场下观察到了两个新的高频信号。 这些频率在以前的较低磁场测量中未被检测到。 这些频率不是来自磁突破，因此很可能是化合物的本征特性。 在CeCoGe3中，相应的有效质量显著增强，约为30倍的自由电子质量。 显示英文摘要

摘要： We report on de Haas-van Alphen effect measurements in the non-centrosymmetric systems CeCoGe3 and LaCoGe3 in magnetic field up to 28 Tesla. In both compounds, two new high frequencies were observed in high fields. The frequencies were not detected in previous lower field measurements. The frequencies do not originate from magnetic breakdown, and, therefore, are likely to be intrinsic features of the compounds. In CeCoGe3, the corresponding effective masses are strongly enhanced, being of the order of 30 bare electron masses.