Zobrazeno 1 - 10
of 343
pro vyhledávání: '"Qimiao Si"'
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-7 (2024)
Abstract Flat electronic bands are expected to show proportionally enhanced electron correlations, which may generate a plethora of novel quantum phases and unusual low-energy excitations. They are increasingly being pursued in d-electron-based syste
Externí odkaz:
https://doaj.org/article/bcc8b07ec3844d69a4d9970642b0437b
Autor:
Han Wu, Lei Chen, Paul Malinowski, Bo Gyu Jang, Qinwen Deng, Kirsty Scott, Jianwei Huang, Jacob P. C. Ruff, Yu He, Xiang Chen, Chaowei Hu, Ziqin Yue, Ji Seop Oh, Xiaokun Teng, Yucheng Guo, Mason Klemm, Chuqiao Shi, Yue Shi, Chandan Setty, Tyler Werner, Makoto Hashimoto, Donghui Lu, Turgut Yilmaz, Elio Vescovo, Sung-Kwan Mo, Alexei Fedorov, Jonathan D. Denlinger, Yaofeng Xie, Bin Gao, Junichiro Kono, Pengcheng Dai, Yimo Han, Xiaodong Xu, Robert J. Birgeneau, Jian-Xin Zhu, Eduardo H. da Silva Neto, Liang Wu, Jiun-Haw Chu, Qimiao Si, Ming Yi
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract Non-volatile phase-change memory devices utilize local heating to toggle between crystalline and amorphous states with distinct electrical properties. Expanding on this kind of switching to two topologically distinct phases requires controll
Externí odkaz:
https://doaj.org/article/eb32789de573495796811528688c0f3f
Autor:
Chandan Setty, Shouvik Sur, Lei Chen, Fang Xie, Haoyu Hu, Silke Paschen, Jennifer Cano, Qimiao Si
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p L032018 (2024)
Lattice symmetries are central to the characterization of electronic topology. Recently, it was shown that Green's function eigenvectors form a representation of the space group. This formulation has allowed the identification of gapless topological
Externí odkaz:
https://doaj.org/article/b765ba9ab2ca4aa4a29b08e0642b5bd4
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p 033235 (2024)
There is extensive current interest in electronic topology in correlated settings. In strongly correlated systems, contours of Green's function zeros may develop in frequency-momentum space, and their role in correlated topology has increasingly been
Externí odkaz:
https://doaj.org/article/39ee90a0a12b4935974426e85dfb37bd
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013219 (2024)
Moiré structures, along with line-graph-based d-electron systems, represent a setting to realize flat bands. One form of the associated strong correlation physics is the Kondo effect. Here, we address the recently observed Kondo-driven heavy fermion
Externí odkaz:
https://doaj.org/article/8ba3cac980dd456784ddbfbc285bbb91
Autor:
Sami Dzsaber, Diego A. Zocco, Alix McCollam, Franziska Weickert, Ross McDonald, Mathieu Taupin, Gaku Eguchi, Xinlin Yan, Andrey Prokofiev, Lucas M. K. Tang, Bryan Vlaar, Laurel E. Winter, Marcelo Jaime, Qimiao Si, Silke Paschen
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
Manipulation of topology of the electronic structure is highly desirable for practical applications of topological materials. Here the authors demonstrate tuning and annihilation of Weyl nodes in momentum space by means of the Zeeman effect in a stro
Externí odkaz:
https://doaj.org/article/494e0eaddc874462a176025cce9a2365
Autor:
Jianwei Huang, Rong Yu, Zhijun Xu, Jian-Xin Zhu, Ji Seop Oh, Qianni Jiang, Meng Wang, Han Wu, Tong Chen, Jonathan D. Denlinger, Sung-Kwan Mo, Makoto Hashimoto, Matteo Michiardi, Tor M. Pedersen, Sergey Gorovikov, Sergey Zhdanovich, Andrea Damascelli, Genda Gu, Pengcheng Dai, Jiun-Haw Chu, Donghui Lu, Qimiao Si, Robert J. Birgeneau, Ming Yi
Publikováno v:
Communications Physics, Vol 5, Iss 1, Pp 1-9 (2022)
The underlying mechanism of iron-based superconductivity, the role of electron correlations, and the extent to which the behavior resembles those of the cuprates has been debated since their discovery. Here, using angle resolved photoemission spectro
Externí odkaz:
https://doaj.org/article/3ee06bff98f94f6bb3b56250e5d8a4ff
Publikováno v:
Frontiers in Electronic Materials, Vol 2 (2023)
Strange metal behavior appears across a variety of condensed matter settings and beyond, and achieving a universal understanding is an exciting prospect. The beyond-Landau quantum criticality of Kondo destruction has had considerable success in descr
Externí odkaz:
https://doaj.org/article/b2df812d3f6f4d978d16eabeb36ebf85
Autor:
Mariam Kavai, Joel Friedman, Kyle Sherman, Mingda Gong, Ioannis Giannakis, Samad Hajinazar, Haoyu Hu, Sarah E. Grefe, Justin Leshen, Qiu Yang, Satoru Nakatsuji, Aleksey N. Kolmogorov, Qimiao Si, Michael Lawler, Pegor Aynajian
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Pyrochlore iridates lie at a tuning-free magnetic quantum critical point hosting several complex exotic phenomena. Here, the authors discover an electronic phase separation in single crystalline Pr2Ir2O7, where well-defined Kondo resonances are inter
Externí odkaz:
https://doaj.org/article/a39784f69b024937aba7c43684ba140b
Autor:
Emilian M. Nica, Qimiao Si
Publikováno v:
npj Quantum Materials, Vol 6, Iss 1, Pp 1-11 (2021)
Abstract Recent experiments in multiband Fe-based and heavy-fermion superconductors have challenged the long-held dichotomy between simple s- and d-wave spin-singlet pairing states. Here, we advance several time-reversal-invariant irreducible pairing
Externí odkaz:
https://doaj.org/article/8a2738e3b0274cd3b00e4f2c537f26fa