We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Novel Solid-State Growth of p-Terphenyl: the Parent High- T Organic Superconductor (HTOS).
- Authors
Maheshwari, P.; Meena, R.; Gahtori, Bhasker; Goyal, Reena; Sultana, Rabia; Rani, Poonam; Awana, V.
- Abstract
We report an easy and versatile route for the synthesis of the parent phase of the newest superconducting wonder material, i.e., p-terphenyl. Doped p-terphenyl has recently shown superconductivity with transition temperature as high as 120 K. For crystal growth, the commercially available p-terphenyl powder is pelletized, encapsulated in an evacuated (10 Torr) quartz tube and subjected to high-temperature (260 C) melt followed by slow cooling at 5 C/h. A simple temperature-controlled heating furnace is used during the process. The obtained crystal is one piece, shiny, and plate like. Single crystal surface XRD (X-ray diffraction) showed unidirectional (00 l) lines, indicating that the crystal is grown along the c-direction. Powder XRD of the specimen showed that as grown p-terphenyl is crystallized in monoclinic structure with space group P2 /a space group, having lattice parameters a = 7.672 (2) Å, b = 5.772 (5) Å, and c = 13.526(3) Å and β = 91.484 (3). Scanning electron microscopy (SEM) pictures of the crystal showed clear layered slab-like growth without any visible contamination from oxygen. Characteristic reported Raman active modes related to C-C-C bending, C-H bending, C-C stretching, and C-H stretching vibrations are seen clearly for the studied p-terphenyl crystal. The physical properties of the crystal are yet underway. The short letter reports an easy and versatile crystal growth method for obtaining quality p-terphenyl. The same growth method may probably be applied to doped p-terphenyl and to subsequently achieve superconductivity to the tune of as high 120 K for the newest superconductivity wonder, i.e., high- T organic superconductor (HTOS).
- Subjects
ORGANIC superconductors; TERPHENYL; SUPERCONDUCTIVITY; X-ray diffraction; CRYSTAL growth
- Publication
Journal of Superconductivity & Novel Magnetism, 2017, Vol 30, Issue 11, p2997
- ISSN
1557-1939
- Publication type
Article
- DOI
10.1007/s10948-017-4250-y