Publication Details:

Established in 2008

Journal or Publication Title:

Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես

Date of publication:

2024

Volume:

17

Number:

3

ISSN:

1829-1171

Official URL:

Coverage:

52-57

Abstract:

An ansatz applied to the two-dimensional Ising model in an external magnetic field h gives rise to an exactly soluble model. The singularity in the magnetization found by Onsager does not survive the presence of the external magnetic field as found earlier by Lee and Yang in 1952. However, the singularity in the heat capacity remains even in the presence of the magnetic field. A surprising result is the presence of negative heat capacity for h > 0.

Format:

pdf

Identifier:

սեղմիր այստեղ կապին հետևելու համար ; oai:arar.sci.am:380510

Location of original object:

ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան