1. Uniaxial-stress induced magnetic order in CeNiSn
- Author
-
Y. Echizen, Masashi Kosaka, Yoshiya Uwatoko, Takeshi Igaue, Hideki Chyono, Toshiro Takabatake, and Kazunori Umeo
- Subjects
Physics ,Specific heat ,Condensed matter physics ,Magnetic order ,Stress induced ,Antiferromagnetism ,Kondo effect ,Magnetic susceptibility ,Semimetal ,Magnetic impurity - Abstract
We report the observation of an unexpected magnetic transition in the Kondo semimetal CeNiSn under uniaxial pressures. For $P\ensuremath{\parallel}a,$ both the specific heat C and magnetic susceptibility \ensuremath{\chi} decrease steadily with increasing P. By contrast, once $P\ensuremath{\parallel}b$ and $P\ensuremath{\parallel}c$ exceed 0.13 GPa, $C(T)$ exhibits a distinct jump at 4 K followed by a peak at 3 K. The concomitant peaking in $\ensuremath{\chi}(T)$ for $P\ensuremath{\parallel}B\ensuremath{\parallel}c$ is indicative of an antiferromagnetic transition.
- Published
- 1999