activity
20202025
most citedElectric field control of disorder-tunable superconductivity and the emergence of quantum metal at an oxide interface

174 citations · 344 across the 8 of their papers we have counts for

collaborators

8 papers

cond-mat.supr-con2025★ 3 cited

Universally enhanced superconductivity and coexisting ferroelectricity at oxide interfaces

Meng Zhang, Ming Qin, Yanqiu Sun +2

The coexistence of superconductivity and ferroelectricity is rare due to their conflicting requirements: superconductivity relies on free charge carriers, whereas ferroelectricity…

cond-mat.supr-con2023

Absence of localized electrons in KTaO interface superconductors

Xinqiang Cai, Jungho Kim, Leonardo Martinelli +19

Recently, an exciting discovery of orientation-dependent superconductivity was made in two-dimensional electron gas (2DEG) at the interfaces of LaAlO/KTaO (LAO/KTO) or EuO/…

cond-mat.supr-con2023★ 25 cited

Orientation-dependent electron-phonon coupling in interfacial superconductors LaAlO3/KTaO3

Xiaoyang Chen, Tianlun Yu, Yuan Liu +17

The emergent superconductivity at the LaAlO3/KTaO3 interfaces exhibits a mysterious dependence on the KTaO3 crystallographic orientations. Here we show, by soft X-ray angle-resolve…

cond-mat.supr-con2022★ 8 cited

Superconductivity in epitaxially grown LaVO3/KTaO3(111) heterostructures

Yuan Liu, Zhongran Liu, Meng Zhang +3

Complex oxide heterointerfaces can host a rich of emergent phenomena, and epitaxial growth is usually at the heart of forming these interfaces. Recently, a strong crystalline-orien…

cond-mat.supr-con2022★ 4 cited

Surface charge writing and non-volatile control of superconductivity in LaAlO3/KTaO3(111) heterostructure

Siyuan Hong, Yanqiu Sun, Yuan Liu +2

The oxide interface between LaAlO3 and KTaO3(111) can host an electron gas that condenses into superconductivity at low temperatures. In this work, we demonstrate a local and non-v…

cond-mat.mes-hall2021★ 1 cited

Growth, Electronic Structure and Superconductivity of Ultrathin Epitaxial CoSi2 Films

Yuan Fang, Ding Wang, Peng Li +14

We report growth, electronic structure and superconductivity of ultrathin epitaxial CoSi2 films on Si(111). At low coverages, preferred islands with 2, 5 and 6 monolayers height de…

cond-mat.supr-con2020★ 129 cited

Observation of two-dimensional superconductivity at the LaAlO3/KTaO3(110) heterointerface

Zheng Chen, Zhongran Liu, Yanqiu Sun +12

We report on the observation of a Tc ~0.9 K superconductivity at the interface between LaAlO3 film and the 5d transition-metal oxide KTaO3(110) single crystal. The interface shows…

cond-mat.supr-con2020★ 174 cited

Electric field control of disorder-tunable superconductivity and the emergence of quantum metal at an oxide interface

Zheng Chen, Yuan Liu, Hui Zhang +7

We report on an extraordinary field effect of the superconducting LaAlO3/KTaO3(111) interface with Tc ~2 K. By applying a gate voltage (VG) across KTaO3, the interface can be conti…