Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Kim, Dae Jeong"'
Autor:
Coe, Aaron, Zhu, Zhi-Huai, He, Yang, Kim, Dae-Jeong, Fisk, Zachary, Hoffman, Jason, Hoffman, Jennifer
YbB$_6$ is a predicted topological insulator, with experimental evidence for conducting surface states of yet-unproven origin. However, its lack of a natural cleavage plane, and resultant surface-dependent polarity, has obscured its study. We use sca
Externí odkaz:
http://arxiv.org/abs/2401.10424
Autor:
Amorese, Andrea, Stockert, Oliver, Kummer, Kurt, Brookes, Nickolas B., Kim, Dae-Jeong, Fisk, Zachary, Haverkort, Maurits W., Thalmeier, Peter, Tjeng, Liu Hao, Severing, Andrea
Publikováno v:
Phys. Rev. B 100, 241107 (2019)
The crystal-field (CF) splitting of the $^6H_{5/2}$ Hund's rule ground state of Sm$^{3+}$ in the strongly correlated topological insulator SmB$_6$ has been determined with high resolution resonant inelastic x-ray scattering (RIXS) at the Sm M$_5$ edg
Externí odkaz:
http://arxiv.org/abs/1901.10808
Autor:
Pirie, Harris, Liu, Yu, Soumyanarayanan, A., Chen, Pengcheng, He, Yang, Yee, M. M., Rosa, P. F. S., Thompson, J. D., Kim, Dae-Jeong, Fisk, Z., Wang, Xiangfeng, Paglione, J., Morr, Dirk K., Hamidian, M. H., Hoffman, Jennifer E.
Publikováno v:
Nat. Phys. 16, 52 (2020)
Kondo insulators are primary candidates in the search for strongly correlated topological quantum phases, which may host topological order, fractionalization, and non-Abelian statistics. Within some Kondo insulators, the hybridization gap is predicte
Externí odkaz:
http://arxiv.org/abs/1810.13419
Autor:
Eo, Yun Suk, Rakoski, Alexa, Lucien, Juniar, Mihaliov, Dmitri, Kurdak, Cagliyan, Rosa, Priscila Ferrari Silveira, Kim, Dae-Jeong, Fisk, Zachary
Publikováno v:
Proceedings of the National Academy of Sciences Jun 2019, 116 (26) 12638-12641
We used the inverted resistance method to extend the bulk resistivity of SmB$_{6}$ to a regime where the surface conduction overwhelms the bulk. Remarkably, the bulk resistivity shows an intrinsic thermally activated behavior that changes ten orders
Externí odkaz:
http://arxiv.org/abs/1803.00959
Autor:
Marcus, Guy G., Kim, Dae-Jeong, Tutmaher, Jacob A., Rodriguez-Rivera, Jose A., Birk, Jonas Okkels, Niedermeyer, Christof, Lee, Hannoh, Fisk, Zachary, Broholm, Collin L.
Publikováno v:
Phys. Rev. Lett. 120, 097201 (2018)
We report the discovery of a field driven transition from a striped to woven Spin Density Wave (SDW) in the tetragonal heavy fermion compound CeAuSb$_2$. Polarized along $\bf c$, the sinusoidal SDW amplitude is 1.8(2) $\mu_B$/Ce for $T \ll T_N$=6.25(
Externí odkaz:
http://arxiv.org/abs/1707.01611
Autor:
Sundermann, Martin, Yavaş, Hasan, Chen, Kai, Kim, Dae Jeong, Fisk, Zachary, Kasinathan, Deepa, Haverkort, Maurits Wim, Thalmeier, peter, Severing, Andrea, Tjeng, Liu Hao
Publikováno v:
Phys. Rev. Lett. 120, 016402 (2018)
We investigated the crystal-electric field ground state of the 4$f$ manifold in the strongly correlated topological insulator SmB$_6$ using core level non-resonant inelastic x-ray scattering (NIXS). The directional dependence of the scattering functi
Externí odkaz:
http://arxiv.org/abs/1706.08072
Autor:
Arab, Arian, Gray, A. X., Nemsak, S., Evtushinsky, D. V., Schneider, C. M., Kim, Dae-Jeong, Fisk, Zachary, Rosa, P. F. S., Durakiewicz, T., Riseborough, P. S.
We present the results of high-resolution valence-band photoemission spectroscopic study of SmB6 which shows evidence for a V-shaped density of states of surface origin within the bulk gap. The spectroscopy data is interpreted in terms of the existen
Externí odkaz:
http://arxiv.org/abs/1611.07069
Autor:
Park, Wan Kyu, Sun, Lunan, Noddings, Alexander, Kim, Dae-Jeong, Fisk, Zachary, Greene, Laura H.
Publikováno v:
Proc. Natl. Acad. Sci. USA 113, 6599-6604 (2016)
Samarium hexaboride (SmB$_6$), a well-known Kondo insulator in which the insulating bulk arises from strong electron correlations, has recently attracted great attention owing to increasing evidence for its topological nature, thereby harboring prote
Externí odkaz:
http://arxiv.org/abs/1605.08463
Autor:
Zhou, Yazhou, Kim, Dae-Jeong, Rosa, Priscila Ferrari Silveira, Wu, Qi, Guo, Jing, Zhang, Shang, Wang, Zhe, Kang, Defen, Zhang, Chao, Yi, Wei, Li, Yanchun, Li, Xiaodong, Liu, Jing, Duan, Peiqian, Zi, Ming, Wei, Xiangjun, Jiang, Zheng, Huang, Yuying, Yang, Yi-feng, Fisk, Zachary, Sun, Liling, Zhao, Zhongxian
Publikováno v:
Phys. Rev. B (Rapid) 92, 241118 (2015)
Topological insulators (TIs) containing 4f electrons have recently attracted intensive interests due to the possible interplay of their non-trivial topological properties and strong electronic correlations. YbB6 and SmB6 are the prototypical systems
Externí odkaz:
http://arxiv.org/abs/1501.03901
Autor:
Neupane, Madhab, Alidoust, Nasser, Bian, Guang, Xu, Su-Yang, Belopolski, Ilya, Kim, Dae-Jeong, Shibayev, Pavel P., Sanchez, Daniel S., Chang, Tay-Rong, Jeng, Horng-Tay, Riseborough, Peter S., Lin, Hsin, Durakiewicz, Tomasz, Bansil, Arun, Fisk, Zachary, Hasan, M. Zahid
Publikováno v:
Phys. Rev. B 92, 104420 (2015)
We present high-resolution angle-resolved photoemission spectroscopy studies of trivalent CeB6 and divalent BaB6 rare-earth hexaborides. We find that the Fermi surface electronic structure of CeB6 consists of large oval-shape pockets around the X poi
Externí odkaz:
http://arxiv.org/abs/1411.0302