Zobrazeno 1 - 10
of 36 012
pro vyhledávání: '"Heavy fermion"'
LiV$_2$O$_4$ is a member of the so-called $3d$ heavy fermion compounds, with effective electron mass exceeding 60 times the free electron mass, comparable to $4f$ heavy fermion compounds. The origin of the strong electron correlation in combination w
Externí odkaz:
http://arxiv.org/abs/2410.08515
The recently discovered van der Waals material CeSiI exhibits both heavy fermion behavior and spiral order with strong magnetic anisotropy which makes it a potential host for topological spin textures such as skyrmions through electrical gating. A mo
Externí odkaz:
http://arxiv.org/abs/2410.06344
Autor:
Liu, Shouzheng, Wray, L. Andrew
The compound UTe2 is of great recent interest as a spin triplet superconductor that is thought to realize a topologically nontrivial superconducting order parameter. Though UTe2 is considered to be a heavy fermion material, only light-electron Fermi
Externí odkaz:
http://arxiv.org/abs/2410.03840
Autor:
Li, En, Danu, Bimla, Liu, Yufeng, Xie, Huilin, Lam, Jacky Wing Yip, Tang, Ben Zhong, Wang, Shiyong, Assaad, Fakher F., Lin, Nian
Heavy fermion quantum criticality is an extremely rich domain of research which represents a framework to understand strange metals as a consequence of a Kondo breakdown transition. Here we provide an experimental realization of such systems in terms
Externí odkaz:
http://arxiv.org/abs/2408.01236
Autor:
Azarevich, A. N., Khrykina, O. N., Bolotina, N. B., Gridchina, V. G., Bogach, A. V., Demishev, S. V., Krasnorussky, V. N., Gavrilkin, S. Yu., Tsvetkov, A. Yu., Shitsevalova, N. Yu., Voronov, V. V., Kugel, K. I., Rakhmanov, A. L., Gabani, S., Flachbart, K., Sluchanko, N. E.
The presented studies of resistivity (R), thermal conductivity (k) and specific heat (C) at low temperature 1.8-7 K in magnetic field up to 90 kOe made it possible to detect for the first time the exponential field dependences R(H), 1/k(H), $C(H) \si
Externí odkaz:
http://arxiv.org/abs/2409.04139
Autor:
Cao, Zi-Yu, Wang, Honghong, Park, Chan-Koo, Park, Tae Beom, Jang, Harim, Seo, Soonbeom, Kim, Sung-Il, Park, Tuson
The evolution of the Fermi surface across the quantum critical point (QCP), which is relevant for characterizing the quantum criticality and understanding its relation with unconventional superconductivity, is an intriguing subject in the study of st
Externí odkaz:
http://arxiv.org/abs/2408.13604
Autor:
Li, Jingwen, Priyadarshi, Debankit, Yang, Chia-Jung, Pohl, Ulli, Stockert, Oliver, von Loehneysen, Hilbert, Pal, Shovon, Fiebig, Manfred, Kroha, Johann
The competition between the Kondo spin-screening effect and the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in heavy-fermion systems drives the quantum phase transition between the magnetically ordered and the heavy-Fermi-liquid ground states. D
Externí odkaz:
http://arxiv.org/abs/2408.07345
Autor:
Ghioldi, E. A., Wang, Zhentao, Chinellato, L. M., Zhu, Jian-Xin, Nomura, Yusuke, Arita, Ryotaro, Simeth, W., Janoschek, M., Ronning, F., Batista, C. D.
By utilizing a multi-orbital periodic Anderson model with parameters obtained from \textit{ab initio} band structure calculations, combined with degenerate perturbation theory, we derive effective Kondo-Heisenberg and spin Hamiltonians that capture t
Externí odkaz:
http://arxiv.org/abs/2408.10964
Autor:
Hafez-Torbati, Mohsen
Publikováno v:
Phys. Rev. B 110, 115147 (2024)
The cooperation of electronic correlation and spin-orbit coupling can stabilize magnetic topological insulators which host novel quantum phenomena such as the quantum anomalous Hall state also known as Chern insulator (CI). Here, we investigate the e
Externí odkaz:
http://arxiv.org/abs/2407.02630