Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Burkov, Anton A."'
The concept of quantum phase transitions (QPT) plays a central role in the description of condensed matter systems. In this contribution, we perform high-quality wavefunction-based simulations to demonstrate the existence of a quantum phase transitio
Externí odkaz:
http://arxiv.org/abs/2210.08124
Twisted bilayer graphene (TBG) near "magic angles" has emerged as a rich platform for strongly correlated states of two-dimensional Dirac semimetals. Here we show that twisted bilayers of thin-film magnetic topological insulators (MTI) with large in-
Externí odkaz:
http://arxiv.org/abs/2205.00349
Publikováno v:
Phys. Rev. B 105, 085108 (2022)
We perform classical Monte Carlo and stochastic Landau-Lifshitz-Gilbert simulations to study temperature dependent magnetism of Kagome antiferromagnet (AFM) Weyl metal $\text{Mn}_3\text{Ge}$ and find that a long range chiral order sets in at a transi
Externí odkaz:
http://arxiv.org/abs/2110.15864
Publikováno v:
Phys. Rev. Lett. 126, 185303 (2021)
The chiral anomaly is a fundamental quantum mechanical phenomenon which is of great importance to both particle physics and condensed matter physics alike. In the context of QED it manifests as the breaking of chiral symmetry in the presence of elect
Externí odkaz:
http://arxiv.org/abs/2102.04371
Publikováno v:
Phys. Rev. B 103, 045105 (2021)
We predict a nonlinear Hall effect in certain Weyl semimetals with broken inversion symmetry. When the energy dispersions about pairs of Weyl nodes are skewed -- the Weyl cones are "tilted" -- the concerted actions of the anomalous velocity and the c
Externí odkaz:
http://arxiv.org/abs/2007.10887
Autor:
Arribi, Pablo Villar, Zhu, Jian-Xin, Schumann, Timo, Stemmer, Susanne, Burkov, Anton A., Heinonen, Olle
Publikováno v:
Phys. Rev. B 102, 155141 (2020)
We computationally study the Fermi arc states in a Dirac semimetal, both in a semi-infinite slab and in the thin-film limit. We use Cd$_3$A$_2$ as a model system, and include perturbations that break the $C_4$ symmetry and inversion symmetry. The sur
Externí odkaz:
http://arxiv.org/abs/2006.10182
Autor:
Jo, Na Hyun, Kuthanazhi, Brinda, Wu, Yun, Timmons, Erik, Kim, Tae-Hoon, Zhou, Lin, Wang, Lin-Lin, Ueland, Benjamin G., Palasyuk, Andriy, Ryan, Dominic H., McQueeney, Robert J., Lee, Kyungchan, Schrunk, Benjamin, Burkov, Anton A., Prozorov, Ruslan, Bud'ko, Sergey L., Kaminski, Adam, Canfield, Paul C.
Publikováno v:
Phys. Rev. B 101, 140402 (2020)
Magnetic Weyl semimetals are expected to have extraordinary physical properties such as a chiral anomaly and large anomalous Hall effects that may be useful for future, potential, spintronics applications. However, in most known host materials, multi
Externí odkaz:
http://arxiv.org/abs/2002.10485
Publikováno v:
Phys. Rev. Lett. 123, 187201 (2019)
Weyl semimetals (WSMs) are a newly discovered class of quantum materials which can host a number of exotic bulk transport properties, such as the chiral magnetic effect, negative magneto-resistance, and the anomalous Hall effect. In this work, we inv
Externí odkaz:
http://arxiv.org/abs/1904.07181
Autor:
Burkov, Anton A., Kim, Yong Baek
Publikováno v:
Phys. Rev. Lett. 117, 136602 (2016)
We demonstrate that topological Dirac semimetals, which possess two Dirac nodes, separated in momentum space along a rotation axis and protected by rotational symmetry, exhibit an additional quantum anomaly, distinct from the chiral anomaly. This ano
Externí odkaz:
http://arxiv.org/abs/1606.08446
Publikováno v:
J.Phys.Conf.Ser.273:012012,2011
By analyzing simple models of fermions in lattice potentials we argue that the zero-temperature pairing instability of any ideal band-insulator occurs at a finite momentum. The resulting supersolid state is known as "pair density wave". The pairing m
Externí odkaz:
http://arxiv.org/abs/1007.2433