Abstract
We study the thermodynamics and the different thermodynamic geometric methods of Reissener-Nordström-de Sitter black hole and its extremal case, which is similar to the de Sitter black hole coupled to a scalar field, rather called an MTZ black hole. While studying the thermodynamics of the systems, we could find some abnormalities. In both cases, the thermodynamic geometric methods could give the correct explanation for all abnormal thermodynamic behaviors in the system.
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Acknowledgments
We thank the reviewer for the useful comments. We are grateful to Hernando Quevedo for the fruitful discussions. TR wishes to thank UGC, New Delhi for financial support under RFSMS scheme. JS wishes to thank UGC for the project under which he is working. VCK is thankful to UGC, New Delhi for financial support through a Major Research Project and wishes to acknowledge Associateship of IUCAA, Pune, India.
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Tharanath, R., Suresh, J., Varghese, N. et al. Thermodynamic geometry of Reissener-Nordström-de Sitter black hole and its extremal case. Gen Relativ Gravit 46, 1743 (2014). https://doi.org/10.1007/s10714-014-1743-x
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DOI: https://doi.org/10.1007/s10714-014-1743-x