N
Ni Ni
Researcher at University of California, Los Angeles
Publications - 217
Citations - 9926
Ni Ni is an academic researcher from University of California, Los Angeles. The author has contributed to research in topics: Superconductivity & Antiferromagnetism. The author has an hindex of 53, co-authored 212 publications receiving 8695 citations. Previous affiliations of Ni Ni include Iowa State University & Ames Laboratory.
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Journal ArticleDOI
Effects of Co substitution on thermodynamic and transport properties and anisotropic H c 2 in Ba ( Fe 1 − x Co x ) 2 As 2 single crystals
TL;DR: In this article, the authors show that the superconductivity is sensitive to the suppression of the higher temperature phase transition and that there is a structural phase separation in both low-temperature crystallographic phases.
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Anisotropic thermodynamic and transport properties of single-crystalline Ba 1 − x K x Fe 2 As 2 ( x = 0 and 0.45)
Ni Ni,S.L. Bud'ko,Andreas Kreyssig,Shibabrata Nandi,G. E. Rustan,Alan I. Goldman,S. Gupta,John D. Corbett,A. Kracher,P. C. Canfield +9 more
TL;DR: In the case of single crystals, the phase transition from a tetragonal phase to a low-temperature orthorhombic phase near 85 K was detected in this article.
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Anomalous Suppression of the Orthorhombic Lattice Distortion in Superconducting Ba ( Fe 1 − x Co x ) 2 As 2 Single Crystals
Shibabrata Nandi,M. G. Kim,Andreas Kreyssig,Rafael M. Fernandes,Daniel K. Pratt,Alexander Thaler,Ni Ni,Sergey L. Bud'ko,Paul C. Canfield,Jörg Schmalian,Robert J. McQueeney,Alan I. Goldman +11 more
TL;DR: It is proposed that the coupling between orthorhombicity and superconductivity is indirect and arises due to the magnetoelastic coupling, in the form of emergent nematic order, and the strong competition between magnetism andsuperconductivity.
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Gapless Surface Dirac Cone in Antiferromagnetic Topological Insulator MnBi 2 Te 4
Yu-Jie Hao,Pengfei Liu,Yue Feng,Xiaoming Ma,Eike F. Schwier,Masashi Arita,Shiv Kumar,Chaowei Hu,Ruie Lu,Meng Zeng,Yuan Wang,Zhanyang Hao,Hongyi Sun,Ke Zhang,Jia-Wei Mei,Ni Ni,Liusuo Wu,Kenya Shimada,Chaoyu Chen,Qihang Liu,Chang Liu +20 more
TL;DR: A topological insulator with magnetic elements shows surprising conductive behavior on its surface, presenting either a hurdle to realizing exotic quantum phenomena or a boon to devices with new charge transport mechanisms as mentioned in this paper.
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Colossal mid-infrared bulk photovoltaic effect in a type-I Weyl semimetal.
Gavin B. Osterhoudt,Laura K. Diebel,Mason Gray,Xu Yang,John Stanco,Xiangwei Huang,Bing Shen,Ni Ni,Philip J. W. Moll,Philip J. W. Moll,Ying Ran,Kenneth S. Burch +11 more
TL;DR: A large bulk photovoltaic effect is observed in the type-I Weyl semimetal TaAs, and attributed to the diverging Berry curvature of the Weyl nodes.