Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Blumberg, Girsh"'
Autor:
Wu, Shangfei, Huang, Fei-Ting, Xu, Xianghan, Ritz, Ethan T., Birol, Turan, Cheong, Sang-Wook, Blumberg, Girsh
Publikováno v:
Nature Communications 15, 9276 (2024)
Symmetry plays an important role in determining the physical properties in condensed matter physics, as the symmetry operations of any physical property must include the symmetry operations of the point group of the crystal. As a consequence, crystal
Externí odkaz:
http://arxiv.org/abs/2410.20921
Autor:
Wu, Shangfei, Klemm, Mason, Shah, Jay, Ritz, Ethan T., Duan, Chunruo, Teng, Xiaokun, Gao, Bin, Ye, Feng, Matsuda, Masaaki, Li, Fankang, Xu, Xianghan, Yi, Ming, Birol, Turan, Dai, Pengcheng, Blumberg, Girsh
Publikováno v:
Phys. Rev. X 14, 011043 (2024)
Spontaneous symmetry breaking-the phenomenon where an infinitesimal perturbation can cause the system to break the underlying symmetry-is a cornerstone concept in the understanding of interacting solid-state systems. In a typical series of temperatur
Externí odkaz:
http://arxiv.org/abs/2309.14314
Publikováno v:
Phys Rev B, 109, 035160 (2024)
Electronic Raman scattering in the fully symmetric channel couples to the charge excitations in the system, including the plasmons. However, the plasmon response has a spectral weight of $\sim q^2$, where $q$, the momentum transferred by light, is sm
Externí odkaz:
http://arxiv.org/abs/2306.11240
Autor:
Ye, Mai, Kung, Hsiang-Hsi, Rosa, Priscila F. S., Bauer, Eric D., Haule, Kristjan, Blumberg, Girsh
We study the electronic and phononic excitations of heavy-fermion metal CeCoIn$_5$ by polarization-resolved Raman spectroscopy to explore the Kondo-lattice coherence. Below the coherence temperature T*\,=\,45\,K, the continuum of electronic excitatio
Externí odkaz:
http://arxiv.org/abs/2202.09642
Autor:
Wu, Shangfei, Ortiz, Brenden R., Tan, Hengxin, Wilson, Stephen D., Yan, Binghai, Birol, Turan, Blumberg, Girsh
We employ polarization-resolved electronic Raman spectroscopy and density functional theory to study the primary and secondary order parameters, as well as their interplay, in the charge density wave (CDW) state of the kagome metal AV3Sb5. Previous x
Externí odkaz:
http://arxiv.org/abs/2201.05188
Publikováno v:
Phys. Rev. B 104, 085102 (2021)
We study the ground state properties, the electronic excitations and lattice dynamics in spin-liquid candidate TbInO$_3$. By employing polarization resolved Raman spectroscopy we define the inter- and intra-multiplet excitations, and establish the lo
Externí odkaz:
http://arxiv.org/abs/2105.12656
Publikováno v:
Phys. Rev. B 104, L241103 (Letter) (2021)
We study the electronic phase diagram of the excitonic insulator candidates Ta$_2$Ni(Se$_{1-x}$S$_x$)$_5$ [x=0, ... ,1] using Raman spectroscopy. Critical excitonic fluctuations are observed, that diminish with $x$ and ultimately shift to high energi
Externí odkaz:
http://arxiv.org/abs/2104.07032
Autor:
Ye, Mai, Volkov, Pavel A., Lohani, Himanshu, Feldman, Irena, Kim, Minsung, Kanigel, Amit, Blumberg, Girsh
Publikováno v:
Physical Review B 104, 045102 (2021). The Editor's Suggestion
Recently, we employed electronic polarization-resolved Raman spectroscopy to reveal the strongly correlated excitonic insulator (EI) nature of Ta2NiSe5, Volkov et al. [arXiv:2007.07344], and also showed that for Ta$_2$Ni(Se$_{1-x}$S$_x$)$_5$ alloys t
Externí odkaz:
http://arxiv.org/abs/2102.07912
Publikováno v:
npj Quantum Materials volume 6, Article number: 52 (2021)
Excitonic insulator is a coherent electronic phase that results from the formation of a macroscopic population of bound particle-hole pairs - excitons. With only a few candidate materials known, the collective excitonic behavior is challenging to obs
Externí odkaz:
http://arxiv.org/abs/2007.07344
Autor:
Ye, Mai, Kim, Heung-Sik, Kim, Jae-Wook, Won, Choong-Jae, Haule, Kristjan, Vanderbilt, David, Cheong, Sang-Wook, Blumberg, Girsh
Publikováno v:
Phys. Rev. B 98, 201105 (2018)
We report $\textit{ab-initio}$ density functional theory calculation and Raman scattering results to explore the electronic structure of Ba$_5$CuIr$_3$O$_{12}$ single crystals. This insulating iridate, consisting of face-sharing IrO$_6$ octahedra for
Externí odkaz:
http://arxiv.org/abs/1808.10407