Spin chirality driven by the Dzyaloshinskii–Moriya interaction in one-dimensional antiferromagnetic chain
Dzyaloshinskii–Moriya (DM) interactions cause many interesting physical features, such as topologically nontrivial magnetic skyrmions and chiral domain walls. These interactions become more pronounced in low-dimensional systems. We investigated a one-dimensional Heisenberg spin-1/2 chain with an asy...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2023-04-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0146777 |
| _version_ | 1797771872387989504 |
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| author | Xing Guo Yaojin Li Zimeng Yao Chenglong Jia Lan Zhang |
| author_facet | Xing Guo Yaojin Li Zimeng Yao Chenglong Jia Lan Zhang |
| author_sort | Xing Guo |
| collection | DOAJ |
| description | Dzyaloshinskii–Moriya (DM) interactions cause many interesting physical features, such as topologically nontrivial magnetic skyrmions and chiral domain walls. These interactions become more pronounced in low-dimensional systems. We investigated a one-dimensional Heisenberg spin-1/2 chain with an asymmetric DM interaction. The results show that, upon applying a nonzero DM interaction, the Néel ground state transitions to a spin chiral phase. Moreover, using the mean-field approximation, we obtain the dispersion of the energy spectrum, from which the z-axis spin chirality is calculated as a function of the strength of the DM interaction for low-lying excitations. The results indicate that the DM interaction facilitates chirality for Dz ≤ J and induces a spin-gapped chiral state. |
| first_indexed | 2024-03-12T21:43:51Z |
| format | Article |
| id | doaj.art-f3e707d97d33446b87514741e353567c |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-03-12T21:43:51Z |
| publishDate | 2023-04-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-f3e707d97d33446b87514741e353567c2023-07-26T14:57:20ZengAIP Publishing LLCAIP Advances2158-32262023-04-01134045103045103-510.1063/5.0146777Spin chirality driven by the Dzyaloshinskii–Moriya interaction in one-dimensional antiferromagnetic chainXing Guo0Yaojin Li1Zimeng Yao2Chenglong Jia3Lan Zhang4School of Mechanical and Materials Engineering, Xi’an University, Xi’an 710065, People’s Republic of ChinaSchool of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of ChinaSchool of Mechanical and Materials Engineering, Xi’an University, Xi’an 710065, People’s Republic of ChinaKey Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, People’s Republic of ChinaDepartment of Physics, Tianshui Normal University, Tianshui 741001, People’s Republic of ChinaDzyaloshinskii–Moriya (DM) interactions cause many interesting physical features, such as topologically nontrivial magnetic skyrmions and chiral domain walls. These interactions become more pronounced in low-dimensional systems. We investigated a one-dimensional Heisenberg spin-1/2 chain with an asymmetric DM interaction. The results show that, upon applying a nonzero DM interaction, the Néel ground state transitions to a spin chiral phase. Moreover, using the mean-field approximation, we obtain the dispersion of the energy spectrum, from which the z-axis spin chirality is calculated as a function of the strength of the DM interaction for low-lying excitations. The results indicate that the DM interaction facilitates chirality for Dz ≤ J and induces a spin-gapped chiral state.http://dx.doi.org/10.1063/5.0146777 |
| spellingShingle | Xing Guo Yaojin Li Zimeng Yao Chenglong Jia Lan Zhang Spin chirality driven by the Dzyaloshinskii–Moriya interaction in one-dimensional antiferromagnetic chain AIP Advances |
| title | Spin chirality driven by the Dzyaloshinskii–Moriya interaction in one-dimensional antiferromagnetic chain |
| title_full | Spin chirality driven by the Dzyaloshinskii–Moriya interaction in one-dimensional antiferromagnetic chain |
| title_fullStr | Spin chirality driven by the Dzyaloshinskii–Moriya interaction in one-dimensional antiferromagnetic chain |
| title_full_unstemmed | Spin chirality driven by the Dzyaloshinskii–Moriya interaction in one-dimensional antiferromagnetic chain |
| title_short | Spin chirality driven by the Dzyaloshinskii–Moriya interaction in one-dimensional antiferromagnetic chain |
| title_sort | spin chirality driven by the dzyaloshinskii moriya interaction in one dimensional antiferromagnetic chain |
| url | http://dx.doi.org/10.1063/5.0146777 |
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