118 citations · 309 across the 16 of their papers we have counts for
16 papers
Fe-vacancy ordered Fe4Se5: The insulating parent phase of FeSe superconductor
Keng-Yu Yeh, Yan-Rai Chen, Tung-Sheng Lo +4
We have carried out a detailed study to investigate the existence of an insulating parent phase for FeSe superconductor. The insulating Fe4Se5 with specific Fe-vacancy order shows…
Possible Topological Phase Transition in Fe-Vacancy-Ordered -FeSe Nanowires
Keng-Yu Yeh, Tung-Sheng Lo, Chung-Chieh Chang +4
We studied the electrical transport on -FeSe single-crystal nanowires, exhibiting Fe-vacancy order and mixed valence of Fe. We observed a…
Disordered Fe vacancies and superconductivity in potassium-intercalated iron selenide (K2-xFe4+ySe5)
Chih-Han Wang, Ta-Kun Chen, Chung-Chieh Chang +5
The parent compound of an unconventional superconductor must contain unusual correlated electronic and magnetic properties of its own. In the high-Tc potassium intercalated FeSe, t…
What Tc Tells
Theodore H. Geballe, Robert H. Hammond, Phillip M. Wu
Superconductivity has continued to be a fascinating phenomenon ever since its discovery in 1911. The magnitude of the transition temperature, Tc, provides valuable insight into the…
Point-contact tunneling spectroscopy measurement of CuTiSe: disorder-enhanced Coulomb effects
Katherine Luna, Phillip M. Wu, Justin S. Chen +2
We performed point-contact spectroscopy tunneling measurements on CuTiSe bulk with and at temperatures ranging from K and observe a suppression in…
Novel Differential Conductance Oscillations in Asymmetric Quantum Point Contacts
Hao Zhang, Phillip M. Wu, Albert M. Chang
Small differential conductance oscillations as a function of source-drain bias were observed and systematically studied in an asymmetric quantum point contact (QPC). These oscillat…