Lattice distortion and spontaneous Γ5g ferro-quadrupole moment in phase IV of CexLa1−xB6
✍ Scribed by Yuichi Nemoto; Mitsuhiro Akatsu; Terutaka Goto; Osamu Suzuki; Shintaro Nakamura; Satoru Kunii
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 254 KB
- Volume
- 359-361
- Category
- Article
- ISSN
- 0921-4526
No coin nor oath required. For personal study only.
✦ Synopsis
We have performed low-temperature thermal expansion measurements to investigate lattice effect of the phase IV in Ce x La 1Àx B 6 , for x ¼ 0:75 and 0.70. In phase IV of both compounds, lattice length along the [1 1 1] direction shrinks notably, on the other hand length along the [0 0 1] direction expands. These results provide evidence that the spontaneous G 5g ferro-quadrupole moment hO yz i ¼ hO zx i ¼ hO xy ia0 is relevant in phase IV because the trigonal lattice distortion is described by the symmetry strain h yz i ¼ h zx i ¼ h xy ia0 simultaneously.