Biqiong Yu

activity

20182020

collaborators

5 papers

cond-mat.supr-con2020

Post-growth annealing effects on charge and spin excitations in Nd $_{2 - x}$ Ce $_{x}$ CuO $_{4}$

Kenji Ishii, Shun Asano, Masumi Ashida +6

We report a Cu K- and L $_{3}$ -edge resonant inelastic x-ray scattering study of charge and spin excitations of bulk Nd $_{2 - x}$ Ce $_{x}$ CuO $_{4}$ , with focus on post-growth annealing effec…

cond-mat.mtrl-sci2019

Soft X-ray Absorption Spectroscopy and Magnetic Circular Dichroism as Operando Probes of Complex Oxide Electrolyte Gate Transistors

Biqiong Yu, Guichuan Yu, Jeff Walter +5

Electrolyte-based transistors utilizing ionic liquids/gels have been highly successful in the study of charge-density-controlled phenomena, particularly in oxides. Experimental pro…

cond-mat.supr-con2019

Doping-dependent phonon anomaly and charge-order phenomena in the HgBa $_{2}$ CuO $_{4 + δ}$ and HgBa $_{2}$ CaCu $_{2}$ O $_{6 + δ}$

Lichen Wang, Biqiong Yu, Ran Jing +14

Using resonant X-ray diffraction and Raman spectroscopy, we study charge correlations and lattice dynamics in two model cuprates, HgBa $_{2}$ CuO $_{4 + δ}$ and HgBa $_{2}$ CaCu $_{2}$ O$_{…

cond-mat.supr-con2018

Universal superconducting precursor in perovskite-based oxides

Damjan Pelc, Zachary Anderson, Biqiong Yu +2

A pivotal challenge posed by unconventional superconductors is to unravel how superconductivity emerges upon cooling from the generally complex normal state. Some of the most promi…

cond-mat.supr-con2018

Growth and characterization of HgBa2CaCu2O6+d and HgBa2Ca2Cu3O8+d crystals

Lichen Wang, Xiangpeng Luo, Jiarui Li +8

We report the successful synthesis of single-crystalline cuprate superconductors HgBa $_{2}$ CaCu $_{2}$ O $_{6 + δ}$ and HgBa $_{2}$ Ca $_{2}$ Cu $_{3}$ O $_{8 + δ}$ . These compounds are well-kno…