Lattice dynamics and magneto-elastic coupling in Kondo-insulator YbB12
نویسندگان
چکیده
منابع مشابه
Low-Energy Electronic Structure of the Kondo Insulator YbB12.
T. Susaki,1 A. Sekiyama,1 K. Kobayashi,1 T. Mizokawa,1 A. Fujimori,1 M. Tsunekawa,2 T. Muro,2 T. Matsushita,2,* S. Suga,2 H. Ishii,3 T. Hanyu,3 A. Kimura,4 H. Namatame,5 M. Taniguchi,5 T. Miyahara,6 F. Iga,5 M. Kasaya,7 and H. Harima8 1Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113, Japan 2Department of Material Physics, Osaka University, Toyonaka, Osaka 560, Japan 2Department...
متن کاملSurface Kondo effect and non-trivial metallic state of the Kondo insulator YbB12
A synergistic effect between strong electron correlation and spin-orbit interaction has been theoretically predicted to realize new topological states of quantum matter on Kondo insulators (KIs), so-called topological Kondo insulators (TKIs). One TKI candidate has been experimentally observed on the KI SmB6(001), and the origin of the surface states (SS) and the topological order of SmB6 has be...
متن کاملCompeting topological and Kondo insulator phases on a honeycomb lattice.
We investigate the competition between the spin-orbit interaction of itinerant electrons and their Kondo coupling with local moments densely distributed on the honeycomb lattice. We find that the model at half-filling displays a quantum phase transition between topological and Kondo insulators at a nonzero Kondo coupling. In the Kondo-screened case, tuning the electron concentration can lead to...
متن کاملKondo metal and ferrimagnetic insulator on the triangular kagome lattice.
We obtain the rich phase diagrams in the Hubbard model on the triangular kagome lattice as a function of interaction, temperature, and asymmetry by combining the cellular dynamical mean-field theory with the continuous time quantum Monte Carlo method. The phase diagrams show the asymmetry separates the critical points in the Mott transition of two sublattices on the triangular kagome lattice an...
متن کاملMagneto-elastic Coupling in the Layered Manganite La1.2Sr1.8Mn2O7
We have studied the magneto-elastic coupling in the double layered Mn perovskite La1.2Sr1.8Mn2O7 with an ultrasonic velocity technique. The temperature profile of both the in-plane and out-of-plane longitudinal velocities showed a large stiffening anomaly below the insulating paramagnetic to metallic ferromagnetic transition. Magnetic fluctuations effects consistent with the layered structure a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2007
ISSN: 1742-6596
DOI: 10.1088/1742-6596/92/1/012074