Physical Review B - Condensed Matter and Materials Physics
巻
67
号
18
ページ
180407-1 - 180407-4
発行年
2003-05-30
ISSN
1098-0121
DOI
https://doi.org/10.1103/physrevb.67.180407
その他の識別子
180407
出版者
American Physical Society
抄録
The magnetic properties of CeRu2Si2 at microkelvin temperatures (down to 170 μK) and ultrasmall magnetic fields (0.02∼6.21 mT) are investigated experimentally. The simultaneously measured ac susceptibility and static magnetization show neither evidence of the magnetic ordering, superconductivity down to the lowest temperatures nor conventional Landau Fermi-Liquid behavior. The results imply the magnetic transition temperature in undoped CeRu2Si2 is very close to absolute 0 K. The possibility for proximity of CeRu2Si2 to the quantum critical point without any doping is discussed.