Zobrazeno 1 - 10
of 262
pro vyhledávání: '"De Juan, F."'
Giant topological longitudinal circular photo-galvanic effect in the chiral multifold semimetal CoSi
Autor:
Ni, Zhuoliang, Wang, K., Zhang, Y., Pozo, O., Xu, B., Han, X., Manna, K., Paglione, J., Felser, C., Grushin, A. G., de Juan, F., Mele, E. J., Wu, Liang
Publikováno v:
Nature Communications, 12, 154 (2021)
The absence of mirror symmetry, or chirality, is behind striking natural phenomena found in systems as diverse as DNA and crystalline solids. A remarkable example occurs when chiral semimetals with topologically protected band degeneracies are illumi
Externí odkaz:
http://arxiv.org/abs/2006.09612
Autor:
Ni, Zhuoliang, Xu, B., Sanchez-Martinez, M. A., Zhang, Y., Manna, K., Bernhard, C., Venderbos, J. W. F., de Juan, F., Felser, C., Grushin, A. G., Wu, Liang
Publikováno v:
npj Quantum Materials 5, 96 (2020)
Chiral topological semimetals are materials that break both inversion and mirror symmetries. They host interesting phenomena such as the quantized circular photogalvanic effect (CPGE) and the chiral magnetic effect. In this work, we report a comprehe
Externí odkaz:
http://arxiv.org/abs/2005.13473
Autor:
Soh, J. -R., de Juan, F., Qureshi, N., Jacobsen, H., Wang, H. -Y., Guo, Y. -F., Boothroyd, A. T.
Publikováno v:
Phys. Rev. B 101, 140411 (2020)
We have used spherical neutron polarimetry to investigate the magnetic structure of the Mn spins in the hexagonal semimetal Mn$_3$Ge, which exhibits a large intrinsic anomalous Hall effect. Our analysis of the polarimetric data finds a strong prefere
Externí odkaz:
http://arxiv.org/abs/2001.02601
Publikováno v:
Phys. Rev. Research 2, 013263 (2020)
We present a theoretical study of the shift current in a noncentrosymmetric polytype of graphitic BC$_2$N. We find that the photoconductivity near the fundamental gap is strongly anisotropic due to the vanishing of particular tensor components not fo
Externí odkaz:
http://arxiv.org/abs/1906.07627
Autor:
Zhang, Yang, Holder, Tobias, Ishizuka, Hiroaki, de Juan, F., Nagaosa, Naoto, Felser, Claudia, Yan, Binghai
Publikováno v:
Nature Commun. 10, 3783 (2019)
Coupling different physical properties is a fascinating subject of physics. Already well-known are the multiferroics which show properties of ferroelectrics and magnets. But ferroelectricity by itself also entails the bulk photovoltaic effect, a ligh
Externí odkaz:
http://arxiv.org/abs/1903.06264
Autor:
Soh, J. -R., de Juan, F., Vergniory, M. G., Schröter, N. B. M., Rahn, M. C., Yan, D. Y., Jiang, J., Bristow, M., Reiss, P., Blandy, J. N., Guo, Y. F., Shi, Y. G., Kim, T. K., McCollam, A., Simon, S. H., Chen, Y., Coldea, A. I., Boothroyd, A. T.
Publikováno v:
Phys. Rev. B 100, 201102 (2019)
Weyl semimetals exhibit exceptional quantum electronic transport due to the presence of topologically-protected band crossings called Weyl nodes. The nodes come in pairs with opposite chirality, but their number and location in momentum space is othe
Externí odkaz:
http://arxiv.org/abs/1901.10022
Publikováno v:
Phys. Rev. Lett. 121, 036403 (2018)
Electrons in clean macroscopic samples of graphene exhibit an astonishing variety of quantum phases when strong perpendicular magnetic field is applied. These include integer and fractional quantum Hall states as well as symmetry broken phases and qu
Externí odkaz:
http://arxiv.org/abs/1802.00802
Autor:
Calvo, M. R., de Juan, F., Ilan, R., Fox, E. J., Bestwick, A. J., Mühlbauer, M., Wang, J., Ames, C., Leubner, P., Brüne, C., Zhang, S. C., Buhmann, H., Molenkamp, L. W., Goldhaber-Gordon, D.
Publikováno v:
Phys. Rev. Lett. 119, 226401 (2017)
We study the electronic transport across an electrostatically-gated lateral junction in a HgTe quantum well, a canonical 2D topological insulator, with and without applied magnetic field. We control carrier density inside and outside a junction regio
Externí odkaz:
http://arxiv.org/abs/1702.08561
Autor:
Amorim, B., Cortijo, A., de Juan, F., Grushin, A. G., Guinea, F., Gutiérrez-Rubio, A., Ochoa, H., Parente, V., Roldán, R., San-José, P., Schiefele, J., Sturla, M., Vozmediano, M. A. H.
Publikováno v:
Physics Reports 617, 1 - 54 (2016)
The analysis of the electronic properties of strained or lattice deformed graphene combines ideas from classical condensed matter physics, soft matter, and geometrical aspects of quantum field theory (QFT) in curved spaces. Recent theoretical and exp
Externí odkaz:
http://arxiv.org/abs/1503.00747
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