Changqing Jin

collaborators

5 papers

cond-mat.mtrl-sci2026

Colossal low-field negative magnetoresistance in CaAl $_{2}$ Si $_{2}$ -type diluted magnetic semiconductors (Ba,K)(Cd,Mn) $_{2}$ As $_{2}$

Bijuan Chen, Zheng Deng, Changqing Jin

We report the magnetic and magnetotransport properties of the layered CaAl $_{2}$ Si $_{2}$ -type diluted magnetic semiconductor (Ba $_{1 - x}$ K $_{x}$ )(Cd $_{1 - y}$ Mn $_{y}$ ) $_{2}$ As $_{2}$ over a broad…

cond-mat.supr-con2026

Pressure Induced 18 K Superconductivity and Two Superconducting Phases in CuIr2S4

Bijuan Chen, Yuhao Gu, Dong Wang +20

We report pressure-induced superconductivity in the spinel CuIr $_{2}$ S $_{4}$ with a transition temperature ( $T_{c}$ ) reaching \textbf{18.2 K}, establishing a new record for…

cond-mat.str-el2025

Antiferromagnetic ordering and critical behavior induced giant magnetocaloric effect in distorted kagome lattice Gd $_{3}$ BWO $_{9}$

Zhuoqun Wang, Xueling Cui, Tim Treu +13

We synthesize the high-quality Gd $_{3}$ BWO $_{9}$ single crystal and investigate its lowtemperature magnetic and thermodynamic properties. Below $T_{N}$ = 1.08 K, the anisotropic beh…

cond-mat.str-el2025

Ultrafast charge-transfer dynamics in Ca $_{2}$ CuO $_{2}$ Cl $_{2}$ from time-resolved optical reflectivity

Haiyun Huang, Xiu Zhang, Junzhi Zhu +7

We employ time-resolved optical reflectivity to investigate the ultrafast dynamics of the charge-transfer gap (CTG) in a parent cuprate compound Ca $_{2}$ CuO $_{2}$ Cl $_{2}$ (CCOC). We obse…

cond-mat.supr-con2025

Superconductivity in trilayer nickelate La4Ni3O10 under pressure

Mingxin Zhang, Cuiying Pei, Di Peng +28

Nickelate superconductors have attracted a great deal of attention over the past few decades due to their similar crystal and electronic structures with high-temperature cuprate su…

Colossal low-field negative magnetoresistance in CaAl2​Si2​-type diluted magnetic semiconductors (Ba,K)(Cd,Mn)2​As2​

Pressure Induced 18 K Superconductivity and Two Superconducting Phases in CuIr2S4

Antiferromagnetic ordering and critical behavior induced giant magnetocaloric effect in distorted kagome lattice Gd3​BWO9​

Ultrafast charge-transfer dynamics in Ca2​CuO2​Cl2​ from time-resolved optical reflectivity

Superconductivity in trilayer nickelate La4Ni3O10 under pressure

Colossal low-field negative magnetoresistance in CaAl $_{2}$ Si $_{2}$ -type diluted magnetic semiconductors (Ba,K)(Cd,Mn) $_{2}$ As $_{2}$

Antiferromagnetic ordering and critical behavior induced giant magnetocaloric effect in distorted kagome lattice Gd $_{3}$ BWO $_{9}$

Ultrafast charge-transfer dynamics in Ca $_{2}$ CuO $_{2}$ Cl $_{2}$ from time-resolved optical reflectivity