Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Kushwaha, S. K."'
Autor:
Ajeesh, M. O., Kushwaha, S. K., Thomas, S. M., Thompson, J. D., Chan, M. K., Harrison, N., Tomczak, J. M., Rosa, P. F. S.
Ce$_{3}$Bi$_{4}$Au$_{3}$ crystallizes in the same non-centrosymmetric cubic structure as the prototypical Kondo insulator Ce$_{3}$Bi$_{4}$Pt$_{3}$. Here we report the physical properties of Ce$_{3}$Bi$_{4}$Au$_{3}$ single crystals using magnetization
Externí odkaz:
http://arxiv.org/abs/2309.02559
Autor:
Ajeesh, M. O., Thomas, S. M., Kushwaha, S. K., Bauer, E. D., Ronning, F., Thompson, J. D., Harrison, N., Rosa, P. F. S.
Publikováno v:
Phys. Rev. B 106, L161105 (2022)
Noncentrosymmetric Ce$_{3}$Bi$_{4}$Pd$_{3}$ has attracted a lot of attention as a candidate for strongly correlated topological material, yet its experimental ground state remains a matter of contention. Two conflicting scenarios have emerged from a
Externí odkaz:
http://arxiv.org/abs/2110.08230
Autor:
Rosa, P. F. S., Xu, Yuanfeng, Kushwaha, S. K., Souza, J. C., Rahn, M. C., Veiga, L. S. I., Bombardi, A., Thomas, S. M., Janoschek, M., Bauer, E. D., Chan, M. K., Wang, Zhijun, Thompson, J. D., Pagliuso, P. G., Harrison, N., Bernevig, B. A., Ronning, F.
Here we investigate antiferromagnetic Eu$_{5}$In$_{2}$Sb$_{6}$, a nonsymmorphic Zintl phase. Our electrical transport data show that Eu$_{5}$In$_{2}$Sb$_{6}$ is remarkably insulating and exhibits an exceptionally large negative magnetoresistance, whi
Externí odkaz:
http://arxiv.org/abs/2007.06556
Autor:
Boschini, F., Bugini, D., Zonno, M., Michiardi, M., Day, R. P., Razzoli, E., Zwartsenberg, B., Neto, E. H. da Silva, Conte, S. dal, Kushwaha, S. K., Cava, R. J., Zhdanovich, S., Mills, A. K., Levy, G., Carpene, E., Dallera, C., Giannetti, C., Jones, D. J., Cerullo, G., Damascelli, A.
Publikováno v:
New J. Phys. 22 023031 (2020)
Time- and angle-resolved photoemission spectroscopy accesses the ultrafast evolution of quasiparticles and many-body interactions in solid-state systems. However, the momentum- and energy-resolved transient photoemission intensity may not be unambigu
Externí odkaz:
http://arxiv.org/abs/1810.06571
Autor:
Cai, Shu, Kushwaha, S. K., Guo, Jing, Sidorov, Vladimir A., Le, Congcong, Zhou, Yazhou, Wang, Honghong, Lin, Gongchang, Li, Xiaodong, Li, Yanchuan, Yang, Ke, Li, Aiguo, Wu, Qi, Hu, Jiangping, Cava, Robert J, Sun, Liling
Publikováno v:
Phys. Rev. Materials 2, 114203 (2018)
We show that two different superconducting phases exist at high pressures in the optimized tetradymite topological insulators Bi2Te2Se (BTS) and Bi1.1Sb0.9Te2S (BSTS). The superconducting phases emerge at structural phase transitions, the first at 8.
Externí odkaz:
http://arxiv.org/abs/1808.10295
Autor:
Cai, Shu, Guo, Jing, Sidorov, Vladimir A., Zhou, Yazhou, Wang, Honghong, Lin, Gongchang, Li, Xiaodong, Li, Yanchuan, Yang, Ke, Li, Aiguo, Wu, Qi, Hu, Jiangping, Kushwaha, S. K., Cava, Robert J, Sun, Liling
The archetypical 3D topological insulators Bi2Se3, Bi2Te3 and Sb2Te3 commonly exhibit high bulk conductivities, hindering the characterization of the surface state charge transport. The optimally doped topological insulators Bi2Te2Se and Bi2-xSbxTe2S
Externí odkaz:
http://arxiv.org/abs/1807.02000
Publikováno v:
Phys. Rev. B 94, 201117 (2016)
Topological surface states have been extensively observed via optics in thin films of topological insulators. However, in typical thick single crystals of these materials, bulk states are dominant and it is difficult for optics to verify the existenc
Externí odkaz:
http://arxiv.org/abs/1610.00803
Autor:
Tafti, F. F., Torikachvili, M. S., Stillwell, R. L., Baer, B., Stavrou, E., Weir, S. T., Vohra, Y. K., Yang, H. -Y., McDonnell, E. F., Kushwaha, S. K., Gibson, Q. D., Cava, R. J., Jeffries, J. R.
Publikováno v:
Phys. Rev. B 95, 014507 (2017)
Extreme magnetoresistance (XMR) in topological semimetals is a recent discovery which attracts attention due to its robust appearance in a growing number of materials. To search for a relation between XMR and superconductivity, we study the effect of
Externí odkaz:
http://arxiv.org/abs/1607.03560
Autor:
Jenkins, G. S., Lane, C., Barbiellini, B., Sushkov, A. B., Carey, R. L., Liu, Fengguang, Krizan, J. W., Kushwaha, S. K., Gibson, Q., Chang, Tay-Rong, Jeng, Horng-Tay, Lin, Hsin, Cava, R. J., Bansil, A., Drew, H. D.
Publikováno v:
Physical Review B 94, 085121 (2016)
Optical measurements and band structure calculations are reported on 3D Dirac materials. The electronic properties associated with the Dirac cone are identified in the reflectivity spectra of Cd$_3$As$_2$ and Na$_3$Bi single crystals. In Na$_3$Bi, th
Externí odkaz:
http://arxiv.org/abs/1605.02145
Autor:
Tafti, F. F., Gibson, Q. D., Kushwaha, S. K., Krizan, J. W., Haldolaarachchige, N., Cava, R. J.
Publikováno v:
Proc. Natl. Acad. Sci. USA 113, E3475 (2016)
The recent discovery of extreme magnetoresistance in LaSb introduced lanthanum monopnictides as a new platform to study topological semimetals (TSMs). In this work we report the discovery of extreme magnetoresistance in LaBi, confirming lanthanum mon
Externí odkaz:
http://arxiv.org/abs/1602.01525