Nonmetallic metal toward a pressure-induced bad-metal state in two-dimensional Cu3LiRu2O6

Bin Huang; Ziyi Liu; Yifeng Han; Shuang Zhao; Meixia Wu; Corey E. Frank; Martha Greenblatt; Mark Croft; Nicholas F. Quackenbush; Sizhan Liu; Trevor A. Tyson; Lei Zhang; Junliang Sun; Pengfei Shan; Jianhong Dai; Xiaohui Yu; Jinguang Cheng; Man-Rong Li

doi:10.1039/C9CC06691H

Nonmetallic metal toward a pressure-induced bad-metal state in two-dimensional Cu₃LiRu₂O₆†

Bin Huang,^a Ziyi Liu,^b Yifeng Han,^a Shuang Zhao,^a Meixia Wu,^a Corey E. Frank,

^c Martha Greenblatt,

^c Mark Croft,^d Nicholas F. Quackenbush,^e Sizhan Liu,^f Trevor A. Tyson,^f Lei Zhang,^g Junliang Sun,

^g Pengfei Shan,^bh Jianhong Dai,^b Xiaohui Yu,^bhi Jinguang Cheng

*^bhi and Man-Rong Li

*^a

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* Corresponding authors

^a Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
E-mail: limanrong@mail.sysu.edu.cn

^b Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China

^c Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, USA

^d Department of Physics and Astronomy, Rutgers, The State University of New Jersey, 136 Frelinghuysen Road, Piscataway, New Jersey 08854, USA

^e Materials Measurement Science Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA

^f Department of Physics, New Jersey Institute of Technology, Newark, New Jersey 07102, USA

^g College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China

^h School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, P. R. China

ⁱ Songshan Lake Materials Laboratory, Dongguan 523808, P. R. China

Abstract

The novel two-dimensional honeycomb layered Cu₃LiRu₂O₆ exhibits Pauli-like paramagnetic and Mott variable range hopping semiconduction behaviors, which contradict the large specific-heat Sommerfeld coefficient for metals, and indicate a possible spin-excitation induced nonmetallic metal. This nonmetallic feature can be significantly suppressed by pressure toward producing a bad-metal state, as reflected by the temperature-dependent resistivity response up to 35 GPa.

Chemical Communications

Nonmetallic metal toward a pressure-induced bad-metal state in two-dimensional Cu₃LiRu₂O₆†

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Nonmetallic metal toward a pressure-induced bad-metal state in two-dimensional Cu₃LiRu₂O₆

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