84 citations · 126 across the 9 of their papers we have counts for
10 papers
Investigation of Calcium Dust in the Interstellar Medium
Ya-Yu Chu, Sascha Zeegers, Hsien Shang +7
Calcium is a highly depleted element in the interstellar medium (ISM), however its composition in the solid phase remains elusive. The detection of Ca-bearing dust has been limited…
In-Plane Differentiation and Out-of-Plane Coherence in Superconducting KFeSe
Chih-Han Wang, Jie-Yu Yang, Wu Phillip M +3
The structural link between superconductivity and anomalous diffraction signatures in KFeSe remains unresolved. Their appearance is accompanied by pronoun…
Metal Mesh IR Filter for wSMA
Chao-Te Li, C. -Y. E. Tong, Ming-Jye Wang +6
Since the start of full science operations from 2004, the Submillimeter Array has been implementing plans to expand IF bandwidths and upgrade receivers and cryostats. Metal mesh lo…
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…
Role of the Extra-Fe in K2-xFe4+ySe5 superconductors
Chih-Han Wang, Chih-Chien Lee, Gwo-Tzong Huang +5
The exact superconducting phase of K2-xFe4+ySe5 has yet conclusively decided since its discovery due to its intrinsic multiphase in early material. In an attempt to resolve the mys…
First-generation Science Cases for Ground-based Terahertz Telescopes
Hiroyuki Hirashita, Patrick M. Koch, Satoki Matsushita +33
Ground-based observations at terahertz (THz) frequencies are a newly explorable area of astronomy for the next ten years. We discuss science cases for a first-generation 10-m class…
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…
Observation of pseudogap-like feature above Tc in LiFeAs and (Ba0.6K0.4)Fe2As2 by ultrafast optical measurement
Kung-Hsuan Lin, Kuan-Jen Wang, Chung-Chieh Chang +8
We utilize ultrafast optical measurement to study the quasiparticle relaxation in stoichiometric LiFeAs and nearly optimally doped (BaK)Fe2As2 crystals. According to our temperatur…
Fe-vacancy order and superconductivity in PbO-type tetragonal β-Fe1-xSe
Ta-Kun Chen, Chung-Chieh Chang, Hsian-Hong Chang +12
Several superconducting transition temperatures in the range of 30-40 K were reported in the recently discovered intercalated FeSe sytem (A1-xFe2-ySe2, A = K, Rb, Cs, Tl). Although…