Thermodynamic Response Functions in the Quantum Critical Region of Spin-1/2 XY Chain Model

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Mashhour Samira; Oskooeian Mohammed; MAHDAVIFAR SAEED; Jafari Rouhollah

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Applied Physics Year:2020 | Volume:10 | Issue:3 (22) Page(s): 81-88

Download Full-Text

Persian Verion

View:

278

Download:

Cites:

Information Journal Paper

Title

Thermodynamic Response Functions in the Quantum Critical Region of Spin-1/2 XY Chain Model

Author(s)

Mashhour Samira | Oskooeian Mohammed | MAHDAVIFAR SAEED | Jafari Rouhollah | Issue Writer Certificate

Keywords

Spin-1/2 Chain

XY Model

Fermionization

Specific Heat

Quantum Critical Region

Abstract

The spin-1/2 XY chain model in the presence of a transverse magnetic field is considered. The ground state phase diagram consists of two gapped ferromagnetic and the paramagnetic phases. These two phases are separated from each other by the quantum critical point, a neighborhood of which, is known as the Quantum Critical Region. First, using the Fermionization approach the Hamiltonian is diagonalized and the spectrum is obtained. Then, using energy spectrum of the system, free energy and thermodynamic quantities such as entropy, Specific Heat, magnetic expansion coefficient and Grü neisen ratio are calculated and the behavior of these quantities is studied in the Quantum Critical Region. Results show that the different behavior of the Specific Heat in the critical region is related to the work in the isothermal process. Moreover, the Grü neisen ratio is always independent of the temperature in the critical quantum regions.

Cites

No record.

References

No record.

Cite

APA: Copy

Mashhour, Samira, Oskooeian, Mohammed, MAHDAVIFAR, SAEED, & Jafari, Rouhollah. (2020). Thermodynamic Response Functions in the Quantum Critical Region of Spin-1/2 XY Chain Model. IRANIAN JOURNAL OF APPLIED PHYSICS, 10(3 (22) ), 81-88. SID. https://sid.ir/paper/382699/en

Vancouver: Copy

Mashhour Samira, Oskooeian Mohammed, MAHDAVIFAR SAEED, Jafari Rouhollah. Thermodynamic Response Functions in the Quantum Critical Region of Spin-1/2 XY Chain Model. IRANIAN JOURNAL OF APPLIED PHYSICS[Internet]. 2020;10(3 (22) ):81-88. Available from: https://sid.ir/paper/382699/en

IEEE: Copy

Samira Mashhour, Mohammed Oskooeian, SAEED MAHDAVIFAR, and Rouhollah Jafari, “Thermodynamic Response Functions in the Quantum Critical Region of Spin-1/2 XY Chain Model,” IRANIAN JOURNAL OF APPLIED PHYSICS, vol. 10, no. 3 (22) , pp. 81–88, 2020, [Online]. Available: https://sid.ir/paper/382699/en

Related Journal Papers