Zobrazeno 1 - 10
of 1 257
pro vyhledávání: '"magnetic Weyl semimetal"'
We investigate the nonlinear magneto-optical response in non-centrosymmetric magnetic Weyl semimetals featuring a quadratic tilt, focusing particularly on the influence of the van Hove singularity (VHS). In the absence of a magnetic field, the second
Externí odkaz:
http://arxiv.org/abs/2407.18094
Autor:
Nakamura, Ayano, Nishihaya, Shinichi, Ishizuka, Hiroaki, Kriener, Markus, Ohno, Mizuki, Watanabe, Yuto, Kawasaki, Masashi, Uchida, Masaki
Publikováno v:
Physical Review B 109, L121108 (2024)
Here we study nonmonotonic features which appear both in magnetoresistivity and anomalous Hall resistivity during the simple magnetization process, by systematically measuring type-II magnetic Weyl semimetal EuCd$_2$Sb$_2$ films over a wide carrier d
Externí odkaz:
http://arxiv.org/abs/2403.09924
Publikováno v:
Phys. Rev. B 109, 245106 (2024)
Motivated by the recent observations of electronic correlation effect [M. Corasaniti \textit{et al}., Phys. Rev. B \textbf{104}, L121112 (2021)] and topology-stabilized magnetic fluctuations [N. Drucker \textit{et al}., Nat. Commun. \textbf{14}, 5182
Externí odkaz:
http://arxiv.org/abs/2403.06476
Autor:
Razeghi, Mohammadali, Spiece, Jean, Fonck, Valentin, Zhang, Yao, Rohde, Michael, Joris, Rikkie, Dobson, Philip S., Weaver, Jonathan M. R., Pereira, Lino da Costa, Granville, Simon, Gehring, Pascal
Solid-state cooling devices offer compact, quiet, reliable and environmentally friendly solutions that currently rely primarily on the thermoelectric (TE) effect. Despite more than two centuries of research, classical thermoelectric coolers suffer fr
Externí odkaz:
http://arxiv.org/abs/2403.13598
Autor:
Li, Cong, Wang, Yang, Zhang, Jianfeng, Liu, Hongxiong, Chen, Wanyu, Liu, Guowei, Deng, Hanbin, Polley, Craig, Thiagarajan, Balasubramanian, Kim, Timur, Yin, Jiaxin, Shi, Youguo, Xiang, Tao, Tjernberg, Oscar
Non-Hermitian physics, studying systems described by non-Hermitian Hamiltonians, reveals unique phenomena not present in Hermitian systems. Unlike Hermitian systems, non-Hermitian systems have complex eigenvalues, making their effects less directly o
Externí odkaz:
http://arxiv.org/abs/2402.14518
Autor:
Matsuoka, Hideki, Fujishiro, Yukako, Minami, Susumu, Koretsune, Takashi, Arita, Ryotaro, Tokura, Yoshinori, Iwasa, Yoshihiro
Manipulating carrier density through gate effects, both in electrostatic charge storage and electrochemical intercalation mode, offers powerful control over material properties, although commonly restricted to ultra-thin films or van der Waals materi
Externí odkaz:
http://arxiv.org/abs/2312.17547
Autor:
Wang, L., Zhang, S., Wang, B. B., Gao, B. X., Cao, L. Y., Zhang, X. T., Zhang, X. Y., Liu, E. K., Chen, R. Y.
The magnetic Weyl semimetal Co$_3$Sn$_2$S$_2$ is extensively investigated due to its giant anomalous Hall effect (AHE).Recent studies demonstrate that the AHE can be effectively tuned by multi-electron Ni doping.To reveal the underlying mechanism of
Externí odkaz:
http://arxiv.org/abs/2312.16437
Autor:
Lohani, Himanshu, Foulquier, Paul, Fevre, Patrick Le, Bertran, Francois, Colson, Dorothee, Forget, Anne, Brouet, Veronique
Publikováno v:
Physical Review B 107, 245119 (2023)
Co$_3$Sn$_2$S$_2$ has been established as a prototype of magnetic Weyl semimetal, exhibiting a ''giant'' anomalous Hall effect in its ferromagnetic phase. An attractive feature of this material is that Weyl points lie close to Fermi level, so that on
Externí odkaz:
http://arxiv.org/abs/2310.03009
Autor:
Changdar, Susmita, Ghosh, Susanta, Bose, Anumita, Kar, Indrani, Low, Achintya, Fevre, Patrick Le, Bertran, François, Narayan, Awadhesh, Thirupathaiah, Setti
Using angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations, we systematically studied the electronic band structure of Mn$_3$Ge in the vicinity of the Fermi level. We observe several bands crossing the Fe
Externí odkaz:
http://arxiv.org/abs/2312.00511
Anomalous Hall effect with plateaus observed in a magnetic Weyl semimetal NdAlGe at low temperatures
Publikováno v:
Phys. Rev. B 109, 035143 (2024)
In the $R$Al(Si,Ge) ($R$: lanthanides) family, both spatial inversion and time-reversal symmetries are broken. This may offer opportunities to study Weyl-fermion physics in nontrivial spin structures emerging from a noncentrosymmetric crystal structu
Externí odkaz:
http://arxiv.org/abs/2312.00222