Hole doping and chemical pressure effects on the strong coupling superconductor PdTe

Chen, Li; Ide, Ando; Jeschke, Harald O.; Kobayashi, Kaya

doi:10.1039/d1cp01071a

Cited by 2 publications

(1 citation statement)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The gate voltage response within the ±40 V range was absent due to the high carrier density in superconducting Pd x Te. The superconducting transition temperature in this device is around 4 K. Note that pure Pd is not superconducting above 2 mK, while the Pd x Te compound is a superconductor with transition temperature depending on the chemical composition x (1.8 K for x = 0.5 and 4.5 K for x = 1). , Additionally, the transition temperature can be tuned by controlling the diffusion of Pd atoms, which we discuss in the following section. A similar interdiffusion process is observed in Al and Ge–Si systems after thermal treatments …”

Section: Resultsmentioning

confidence: 96%

Superconducting Field-Effect Transistors with Pd_xTe–Te Intimate Contacts

Niu,

Wang,

Zhang

et al. 2024

ACS Nano

View full text Add to dashboard Cite

Superconducting-based electronic devices have shown great potential for future quantum computing applications. One key building block device is a superconducting field-effect transistor based on a superconductor–semiconductor–superconductor Josephson-junction (JJ) with a gate-tunable semiconducting channel. However, the performance of such devices is highly dependent on the quality of the superconductor to semiconductor interface. In this study, we present an alternative method to obtain a high-quality interface by using intimate contact. We investigate the proximity-induced superconductivity in chiral crystal tellurium (Te) and fabricate a Pd x Te–Te–Pd x Te JJ with an ambipolar supercurrent that is gate-tunable and exhibits multiple Andreev reflections. The semiconducting two-dimensional Te single crystal is grown hydrothermally and partially converted to superconducting Pd x Te by controlled annealing. Our work demonstrates a promising path for realizing controllable superconducting electronic devices with high-quality superconducting interfaces; thus, we can continue to advance the field of quantum computing and other interface-based technologies.

show abstract

Section: Resultsmentioning

confidence: 96%