S. Y. Li

L. P. He; X. C. Hong; J.K. Dong; J. Pan; Zhongzhi Zhang; Jie Zhang; S. Y. Li

We report the quantum transport properties of Cd₃As₂ single crystals in a magnetic field. A large linear quantum magnetoresistance is observed near room temperature. With decreasing temperature, the Shubnikov-de Haas oscillations appear in both the longitudinal resistance R(xx) and the transverse Hall resistance R(xy). From the strong oscillatory component ΔR(xx), a linear dependence of the Landau index n on 1/B is obtained, and it gives an n-axis intercept between 1/2 and 5/8. This clearly reveals a nontrivial π Berrys phase, which is a distinguished feature of Dirac fermions. Our quantum transport results provide bulk evidence for the existence of a three-dimensional Dirac semimetal phase in Cd₃As₂.

L. Ding; C. He; Jian Dong; T. Wu; R. H. Liu; X. H. Chen; S. Y. Li

The specific heat

Zhongzhi Zhang; A. F. Wang; X. C. Hong; Zhang J; Bingying Pan; J. Pan; Yuanfeng Xu; X. Luo; X. H. Chen; S. Y. Li

C(T)

L. Ding; Jian Dong; Shijie Zhou; T. Y. Guan; X. Qiu; Cheng Zhang; Lanjuan Li; Xiao Lin; G. H. Cao; Z. A. Xu; S. Y. Li

of new iron-based high-

A. F. Wang; Bingying Pan; X. Luo; Fanglin Chen; Y. J. Yan; J. J. Ying; G. J. Ye; P. Cheng; X. C. Hong; S. Y. Li; X. H. Chen

T_c

Shixun Zhou; Xin Li; B. Y. Pan; X. Qiu; J. Pan; X. C. Hong; Zhongzhi Zhang; A. F. Fang; N. L. Wang; S. Y. Li

superconductor SmO

J. Pan; Wen-He Jiao; X. C. Hong; Zhongzhi Zhang; L. P. He; Peng Cai; Jie Zhang; G. H. Cao; S. Y. Li

_{1-x}

Jibiao Zhang; Jian Dong; Yanhui Xu; J. Pan; L. P. He; Lu Zhang; S. Y. Li

F

Y. He; T. Wu; G. Wu; Qing-Rong Zheng; Y. Liu; H. Chen; J. J. Ying; R. H. Liu; X. F. Wang; Y. L. Xie; Y. J. Yan; Jian Dong; S. Y. Li; X. H. Chen

_x

X B Yan; Yanhui Xu; L. P. He; Jian Dong; Hwanbeom Cho; Darren C. Peets; Je-Geun Park; S. Y. Li

FeAs (