Chengping He

activity

20182023

most citedAbsence of superconductivity in bulk Nd

_{1 - x}

_{x}

NiO

_{2}

164 citations · 401 across the 9 of their papers we have counts for

collaborators

Showing cond-mat.supr-conShow all

8 papers · 1 filter

cond-mat.supr-con2023★ 38 cited

Pressure induced color change and evolution of metallic behavior in nitrogen-doped lutetium hydride

Ying-Jie Zhang, Xue Ming, Qing Li +6

By applying pressures up to 42 GPa on the nitrogen-doped lutetium hydride (LuH $_{2 \pm x}$ N $_{y}$ ), we have found a gradual change of color from dark-blue to pink-violet in the…

cond-mat.supr-con2023★ 89 cited

Absence of near-ambient superconductivity in LuH $_{2 \pm x}$ N $_{y}$

Xue Ming, Ying-Jie Zhang, Xiyu Zhu +6

Recently near-ambient superconductivity was claimed in N-doped lutetium hydride (ref. 1). This induces a worldwide fanaticism about the dream of room temperature superconductivity…

cond-mat.supr-con2021★ 14 cited

Characterization of the (Cu,C)Ba $_{2}$ Ca $_{3}$ Cu $_{4}$ O $_{11 + δ}$ single crystals grown under high pressure

Chengping He, Xue Ming, Jin Si +3

By using high pressure and high temperature (3.7 GPa, 1120 $^{\circ}$ C) synthesis technique, we have grown (Cu,C)Ba $_{2}$ Ca $_{3}$ Cu $_{4}$ O $_{11 + δ}$ single crystals. X-ray diffraction, sc…

cond-mat.supr-con2021★ 15 cited

Charge-stripe Fluctuations in Nd $_{4}$ Ni $_{3}$ O $_{8}$ as Evidenced by Optical Spectroscopy

Jiahao Hao, Xinwei Fan, Qing Li +6

We present an investigation into the optical properties of Nd $_{4}$ Ni $_{3}$ O $_{8}$ at different temperatures from 300 down to 5~K over a broad frequency range. The optical conducti…

cond-mat.supr-con2020★ 26 cited

Synthesis and physical properties of perovskite Sm $_{1 - x}$ Sr $_{x}$ NiO $_{3}$ (x = 0, 0.2) and infinite-layer Sm $_{0.8}$ Sr $_{0.2}$ NiO $_{2}$ nickelates

Chengping He, Xue Ming, Qing Li +3

Recently, superconductivity at about 9-15K was discovered in Nd $_{1 - x}$ Sr $_{x}$ NiO $_{2}$ infinite-layer thin films, which has stimulated enormous interests in related rare-earth nickel…

cond-mat.supr-con2019★ 164 cited

Absence of superconductivity in bulk Nd $_{1 - x}$ Sr $_{x}$ NiO $_{2}$

Qing Li, Chengping He, Jin Si +3

Recently superconductivity at 9 - 15 K was discovered in an infinite-layer nickelate (Nd $_{0.8}$ Sr $_{0.2}$ NiO $_{2}$ films), which has received enormous attention. Since the $N i^{1 +}$ …

cond-mat.supr-con2018★ 3 cited

Discovery of a new nontoxic cuprate superconducting system Ga-Ba-Ca-Cu-O

Yue Zhang, Wenhao Liu, Jin Si +4

Superconductivity is observed in a new nontoxic cuprate system Ga-Ba-Ca-Cu-O, with Tc = 82K for GaBa2Ca5Cu6O14+δ (Ga-1256) and Tc = 116K probably for GaBa2Ca3Cu4O10+δ (Ga-1234) or…

cond-mat.supr-con2018★ 26 cited

Unprecedented High Irreversibility Line in Nontoxic Cuprate Superconductor (Cu,C)Ba2Ca3Cu4O11+delta

Yue Zhang, Wenhao Liu, Xiyu Zhu +4

One of the key factors limiting the high power applications for a type-II superconductor is the irreversibility line Hirr(T) which reflects the very boundary of resistive dissipati…

Pressure induced color change and evolution of metallic behavior in nitrogen-doped lutetium hydride

Absence of near-ambient superconductivity in LuH2±x​Ny​

Characterization of the (Cu,C)Ba2​Ca3​Cu4​O11+δ​ single crystals grown under high pressure

Charge-stripe Fluctuations in Nd4​Ni3​O8​ as Evidenced by Optical Spectroscopy

Synthesis and physical properties of perovskite Sm1−x​Srx​NiO3​ (x = 0, 0.2) and infinite-layer Sm0.8​Sr0.2​NiO2​ nickelates

Absence of superconductivity in bulk Nd1−x​Srx​NiO2​