Enhanced superconducting properties of FeSe0.8Te0.2 thin films grown by pulsed laser deposition

2019 ◽  
Vol 564 ◽  
pp. 55-58
Author(s):  
Fan Fan ◽  
Zhongtang Xu ◽  
Zhe Cheng ◽  
He Huang ◽  
Yanchang Zhu ◽  
...  
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Superconducting Properties

scholarly journals Challenges for Pulsed Laser Deposition of FeSe Thin Films

Micromachines ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1224
Author(s):  
Yukiko Obata ◽  
Igor A. Karateev ◽  
Ivan Pavlov ◽  
Alexander L. Vasiliev ◽  
Silvia Haindl
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Film Growth ◽  
Mechanical Strain ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Superconducting Properties ◽  
Surface Protection ◽  
Sensor Applications ◽  
Interface Control

Anti-PbO-type FeSe shows an advantageous dependence of its superconducting properties with mechanical strain, which could be utilized as future sensor functionality. Although superconducting FeSe thin films can be grown by various methods, ultrathin films needed in potential sensor applications were only achieved on a few occasions. In pulsed laser deposition, the main challenges can be attributed to such factors as controlling film stoichiometry (i.e., volatile elements during the growth), nucleation, and bonding to the substrate (i.e., film/substrate interface control) and preventing the deterioration of superconducting properties (i.e., by surface oxidization). In the present study, we address various technical issues in thin film growth of FeSe by pulsed laser deposition, which pose constraints in engineering and reduce the application potential for FeSe thin films in sensor devices. The results indicate the need for sophisticated engineering protocols that include interface control and surface protection from chemical deterioration. This work provides important actual limitations for pulsed laser deposition (PLD) of FeSe thin films with the thicknesses below 30 nm.

Superconducting properties of YBCO thin films grown on [001] quartz substrates by pulsed laser deposition

2019 ◽  
Vol 562 ◽  
pp. 20-24 ◽  
Author(s):  
N.V. Porokhov ◽  
E.E. Levin ◽  
M.L. Chukharkin ◽  
A.S. Kalaboukhov ◽  
A.G. Maresov ◽  
...  
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Superconducting Properties ◽  
Ybco Thin Films ◽  
Quartz Substrates

Epitaxial LaNiO3 thin films: A normal metal barrier for SNS junction

1994 ◽  
Vol 9 (4) ◽  
pp. 898-902 ◽  
Author(s):  
M. S. Hegde ◽  
K. M. Satyalakshmi ◽  
R. M. Mallya ◽  
M. Rajeswari ◽  
H. Zhang
Keyword(s):  
Thin Films ◽  
Temperature Dependence ◽  
Pulsed Laser Deposition ◽  
Ohmic Contact ◽  
Pulsed Laser ◽  
Normal Metal ◽  
Laser Deposition ◽  
Superconducting Properties ◽  
Sns Junction ◽  
Metal Barrier

Epitaxial LaNiO3 thin films have been grown on SrTiO3 and several other substrates by pulsed laser deposition. The films are observed to be metallic down to 15 K, and the temperature dependence of resistivity is similar to that of bulk LaNiO3. Epitaxial, c-axis oriented YBa2Cu3O7-x films with good superconducting properties have been grown on the LaNiO3 (100) films. I-V characteristics of the YBa2Cu3O7-x-LaNiO3 junction are linear, indicating ohmic contact between them.

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