2008/05/02 by V. P. S. Awana, Awana, V. P. S., Arpita Vajpayee +17
Business, Management and Accounting · Materials Science · Physics and Astronomy · #Corporate Taxation and Avoidance #FOS: Physical sciences #Intellectual Capital and Performance Analysis #Iron-based superconductors research #Strongly Correlated Electrons (cond-mat.str-el) #Superconductivity (cond-mat.supr-con) #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.0805.0214
7 pages (Text+2Figs): Comments welcome ([email protected])
arxiv created 2008/05/02 · openalex publication_date 2008/05/02 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We report an easy and versatile one-step route of synthesis for newly discovered Fe based superconductor LaFeAsO1-d with d = 0.0 to 0.15. Instead of widely used high-pressure-high-temperature (HPHT) synthesis, we applied the normal atmosphere solid-state reaction route. The stoichiometric mixtures of Fe, La2O3, La and As in ratio LaFeAsO1-d with d = 0.0 to 0.15 are sealed in an evacuated quartz tube and further heated at 500, 850 and 1100 0C in Ar for 12, 12 and 33 hours respectively in a single step. The resulting compounds are single phase LaFeAsO crystallized in tetragonal P4/nmm structure. These samples showed the ground state spin density wave (SDW) like metallic behavior below around 150 K. In conclusion the ground state of newly discovered Fe based superconductor is synthesized via an easy one-step solid-state reaction route.