Room and High-Temperature Study of Rare Earth Chalcogenides

Authors Purvee Bhardwaj1, Neetu Paliwal1, Ramakant Bhardwaj2, Pankaj Kumar Mishra3, Jyoti Mishra4, Ranjeet Brajpuriya5

1Department of Physics, Faculty of Sciences, Rabindranath Tagore University Bhopal (M.P.), India

2Department of Mathematics, Amity University Kolkata (WB), India

3Department of Applied Physics, Amity School of Engineering and Technology, Amity University MadhyaPradesh, Maharajpura Dang, Gwalior, India

4Department of Applied Sciences, IPS College of Technology and Management, Gwalior, (M.P.), India

5Department of Physics, University of Petroleum and Energy Studies (UPES), Dehradun, India

Issue Volume 14, Year 2022, Number 2
Dates Received 12 December 2021; revised manuscript received 18 April 2022; published online 29 April 2022
Citation Purvee Bhardwaj, Neetu Paliwal, Ramakant Bhardwaj, et al., J. Nano- Electron. Phys. 14 No 2, 02005 (2022)
PACS Number(s) 71.20.Eh, 47.80.Fg, 61.50.Ks
Keywords Scandium, Phase transformation, Crystal structure (8) , Temperature (45) , Pressure (12) .

Phase transformation analysis of ScS and ScSe, including temperature effects, is reported in this investigation. The theoretical exploration by means of the Realistic Interaction Potential Approach (RIPA) model is carried out. A volume collapse occurs in the transition phenomena. This transformation is described in a high-temperature range of 0-900 K. The consequences of this investigation demonstrate generally very good agreement with the available reports. In addition, the elastic behavior and pressure derivatives are premeditated. The performance of bulk modulus for the present compounds as a function of temperature and pressure is accounted for. Innovation estimates are made for the elastic assets of the current compounds. Various moduli of elasticity of these compounds are reported with temperature as well as pressure variations. The temperature and pressure behavior of the present compounds is in good agreement with the previously published results. This study confirms the phase transformation from NaCl to the CsCl structure of these compounds.

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