Critical behavior and magnetocaloric effect in VI_{3}
Layered van der Waals ferromagnets are promising candidates for designing new spintronic devices. Here we investigated the critical properties and magnetocaloric effect connected with ferromagnetic transition in layered van der Waals VI_{3} single crystals. The critical exponents β=0.244(5) with a c...
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| Format: | Article |
| Language: | English |
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American Physical Society
2020-01-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.013013 |
| _version_ | 1797211637425373184 |
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| author | Yu Liu (刘育) Milinda Abeykoon C. Petrovic |
| author_facet | Yu Liu (刘育) Milinda Abeykoon C. Petrovic |
| author_sort | Yu Liu (刘育) |
| collection | DOAJ |
| description | Layered van der Waals ferromagnets are promising candidates for designing new spintronic devices. Here we investigated the critical properties and magnetocaloric effect connected with ferromagnetic transition in layered van der Waals VI_{3} single crystals. The critical exponents β=0.244(5) with a critical temperature T_{c}=50.10(2)K and γ=1.028(12) with T_{c}=49.97(5)K are obtained from the modified Arrott plot, whereas δ=5.24(2) is obtained from a critical isotherm analysis at T_{c}=50K. The magnetic entropy change −ΔS_{M}(T,H) features a maximum at T_{c}, i.e., −ΔS_{M}^{max}∼2.64(2.27)Jkg^{−1}K^{−1} with out-of-plane (in-plane) field change of 5 T. This is consistent with −ΔS_{M}^{max}∼2.80Jkg^{−1}K^{−1} deduced from heat capacity and the corresponding adiabatic temperature change ΔT_{ad}∼0.96K with out-of-plane field change of 5 T. The critical analysis suggests that the ferromagnetic phase transition in VI_{3} is situated close to a three- to two-dimensional critical point. The rescaled ΔS_{M}(T,H) curves collapse onto a universal curve, confirming a second-order type of the magnetic transition and reliability of the obtained critical exponents. |
| first_indexed | 2024-04-24T10:29:39Z |
| format | Article |
| id | doaj.art-e485ef3c6586414daf6cb348ed53f143 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:29:39Z |
| publishDate | 2020-01-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-e485ef3c6586414daf6cb348ed53f1432024-04-12T16:48:19ZengAmerican Physical SocietyPhysical Review Research2643-15642020-01-012101301310.1103/PhysRevResearch.2.013013Critical behavior and magnetocaloric effect in VI_{3}Yu Liu (刘育)Milinda AbeykoonC. PetrovicLayered van der Waals ferromagnets are promising candidates for designing new spintronic devices. Here we investigated the critical properties and magnetocaloric effect connected with ferromagnetic transition in layered van der Waals VI_{3} single crystals. The critical exponents β=0.244(5) with a critical temperature T_{c}=50.10(2)K and γ=1.028(12) with T_{c}=49.97(5)K are obtained from the modified Arrott plot, whereas δ=5.24(2) is obtained from a critical isotherm analysis at T_{c}=50K. The magnetic entropy change −ΔS_{M}(T,H) features a maximum at T_{c}, i.e., −ΔS_{M}^{max}∼2.64(2.27)Jkg^{−1}K^{−1} with out-of-plane (in-plane) field change of 5 T. This is consistent with −ΔS_{M}^{max}∼2.80Jkg^{−1}K^{−1} deduced from heat capacity and the corresponding adiabatic temperature change ΔT_{ad}∼0.96K with out-of-plane field change of 5 T. The critical analysis suggests that the ferromagnetic phase transition in VI_{3} is situated close to a three- to two-dimensional critical point. The rescaled ΔS_{M}(T,H) curves collapse onto a universal curve, confirming a second-order type of the magnetic transition and reliability of the obtained critical exponents.http://doi.org/10.1103/PhysRevResearch.2.013013 |
| spellingShingle | Yu Liu (刘育) Milinda Abeykoon C. Petrovic Critical behavior and magnetocaloric effect in VI_{3} Physical Review Research |
| title | Critical behavior and magnetocaloric effect in VI_{3} |
| title_full | Critical behavior and magnetocaloric effect in VI_{3} |
| title_fullStr | Critical behavior and magnetocaloric effect in VI_{3} |
| title_full_unstemmed | Critical behavior and magnetocaloric effect in VI_{3} |
| title_short | Critical behavior and magnetocaloric effect in VI_{3} |
| title_sort | critical behavior and magnetocaloric effect in vi 3 |
| url | http://doi.org/10.1103/PhysRevResearch.2.013013 |
| work_keys_str_mv | AT yuliuliúyù criticalbehaviorandmagnetocaloriceffectinvi3 AT milindaabeykoon criticalbehaviorandmagnetocaloriceffectinvi3 AT cpetrovic criticalbehaviorandmagnetocaloriceffectinvi3 |