Thermodynamic and magnetic properties of the Ising model with nonmagnetic impurities
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866910309815418880 |
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| author | Yasinskaya, D. N. Panov, Yu. D. |
| author_facet | Yasinskaya, D. N. Panov, Yu. D. |
| contents | We consider a system of Ising spins s=1/2 with nonmagnetic impurities with charge associated with pseudospin S=1. The charge density is fixed pursuant to the concentration n. Analysis of the thermodynamic properties in the one-dimensional case showed the presence of so-called pseudotransitions at the boundaries between the staggered charge ordering and (anti)ferromagnetic ordering. In the case of n=0, a "1st order" pseudotransition was discovered. This type of pseudotransition is inherent for a series of other one-dimensional frustrated models. However, for n != 0 we discovered a new type of "2nd order" pseudotransition, which had not previously been observed in other systems. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2401_15087 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Thermodynamic and magnetic properties of the Ising model with nonmagnetic impurities Yasinskaya, D. N. Panov, Yu. D. Statistical Mechanics Strongly Correlated Electrons We consider a system of Ising spins s=1/2 with nonmagnetic impurities with charge associated with pseudospin S=1. The charge density is fixed pursuant to the concentration n. Analysis of the thermodynamic properties in the one-dimensional case showed the presence of so-called pseudotransitions at the boundaries between the staggered charge ordering and (anti)ferromagnetic ordering. In the case of n=0, a "1st order" pseudotransition was discovered. This type of pseudotransition is inherent for a series of other one-dimensional frustrated models. However, for n != 0 we discovered a new type of "2nd order" pseudotransition, which had not previously been observed in other systems. |
| title | Thermodynamic and magnetic properties of the Ising model with nonmagnetic impurities |
| topic | Statistical Mechanics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2401.15087 |