Search Results for author: Stephen D. Wilson

Found 6 papers, 1 papers with code

Quokka: An Open-source Large Language Model ChatBot for Material Science

1 code implementation2 Jan 2024 Xianjun Yang, Stephen D. Wilson, Linda Petzold

This paper presents the development of a specialized chatbot for materials science, leveraging the Llama-2 language model, and continuing pre-training on the expansive research articles in the materials science domain from the S2ORC dataset.

Chatbot Language Modelling +1

Cascade of correlated electron states in a kagome superconductor CsV3Sb5

no code implementations4 Mar 2021 He Zhao, Hong Li, Brenden R. Ortiz, Samuel M. L. Teicher, Taka Park, Mengxing Ye, Ziqiang Wang, Leon Balents, Stephen D. Wilson, Ilija Zeljkovic

At a temperature far above the superconducting transition Tc ~ 2. 5 K, we reveal a tri-directional charge order with a 2a0 period that breaks the translation symmetry of the lattice.

Superconductivity Strongly Correlated Electrons

Interplay between charge order and superconductivity in the kagome metal KV$_3$Sb$_5$

no code implementations22 Feb 2021 Feng Du, Shuaishuai Luo, Brenden R. Ortiz, Ye Chen, Weiyin Duan, Dongting Zhang, Xin Lu, Stephen D. Wilson, Yu Song, Huiqiu Yuan

Beyond $p\approx10$ GPa, a second superconducting dome emerges with maximum $T_{\rm c}\approx1. 0$ K at $p_{\rm c2}\approx22$ GPa, which becomes fully suppressed at $p\approx28$ GPa.

Superconductivity

Discovery of unconventional chiral charge order in kagome superconductor KV3Sb5

no code implementations31 Dec 2020 Yu-Xiao Jiang, Jia-Xin Yin, M. Michael Denner, Nana Shumiya, Brenden R. Ortiz, Junyi He, Xiaoxiong Liu, Songtian S. Zhang, Guoqing Chang, Ilya Belopolski, Qi Zhang, Md Shafayat Hossain, Tyler A. Cochran, Daniel Multer, Maksim Litskevich, Zi-Jia Cheng, Xian P. Yang, Zurab Guguchia, Gang Xu, Ziqiang Wang, Titus Neupert, Stephen D. Wilson, M. Zahid Hasan

Here we use high-resolution scanning tunnelling microscopy (STM) to discover an unconventional charge order in a kagome material KV3Sb5, with both a topological band structure and a superconducting ground state.

Superconductivity Materials Science Strongly Correlated Electrons

Superconductivity in the $\mathbb{Z}_2$ kagome metal KV$_3$Sb$_5$

no code implementations16 Dec 2020 Brenden R. Ortiz, Eric Kenney, Paul M. Sarte, Samuel M. L. Teicher, Ram Seshadri, Michael J. Graf, Stephen D. Wilson

Here we report the observation of bulk superconductivity in single crystals of the two-dimensional kagome metal KV$_3$Sb$_5$.

Superconductivity Materials Science Strongly Correlated Electrons

Anisotropic proximity-induced superconductivity and edge supercurrent in Kagome metal, K1-xV3Sb5

no code implementations10 Dec 2020 Yaojia Wang, Shuoying Yang, Pranava K. Sivakumar, Brenden R. Ortiz, Samuel M. L. Teicher, Heng Wu, Abhay K. Srivastava, Chirag Garg, Defa Liu, Stuart S. P. Parkin, Eric S. Toberer, Tyrel McQueen, Stephen D. Wilson, Mazhar N. Ali

Through magnetoresistance and current vs. phase measurements, we observed magnetic field sweeping direction dependent magnetoresistance, and an anisotropic interference pattern with a Fraunhofer pattern for in-plane magnetic field, but a suppression of critical current for out-of-plane magnetic field.

Superconductivity

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