Chengping He

activity

20182021

collaborators

5 papers

cond-mat.supr-con2021

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.mtrl-sci2020

Contrasting physical properties of the trilayer nickelates Nd $_{4}$ Ni $_{3}$ O $_{10}$ and Nd $_{4}$ Ni $_{3}$ O $_{8}$

Qing Li, Chengping He, Xiyu Zhu +3

We report the crystal structures and physical properties of trilayer nickelates Nd $_{4}$ Ni $_{3}$ O $_{10}$ and Nd $_{4}$ Ni $_{3}$ O $_{8}$ . Measurements of magnetization and electrical resistivity…

cond-mat.supr-con2019

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

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

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…

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

Contrasting physical properties of the trilayer nickelates Nd4​Ni3​O10​ and Nd4​Ni3​O8​

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

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

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

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

Contrasting physical properties of the trilayer nickelates Nd $_{4}$ Ni $_{3}$ O $_{10}$ and Nd $_{4}$ Ni $_{3}$ O $_{8}$

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