Manipulating magnetism and transport properties of EuCd$_2$P$_2$ with a low carrier concentration
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arXiv
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| Autori principali: | , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866909261384122368 |
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| author | Chen, Xiyu Wang, Ziwen Zhou, Zhiyu Yang, Wuzhang Liu, Yi Lu, Jia-Yi Ren, Zhi Cao, Guang-Han Tafti, Fazel Dong, Shuai Wang, Zhi-Cheng |
| author_facet | Chen, Xiyu Wang, Ziwen Zhou, Zhiyu Yang, Wuzhang Liu, Yi Lu, Jia-Yi Ren, Zhi Cao, Guang-Han Tafti, Fazel Dong, Shuai Wang, Zhi-Cheng |
| contents | Materials that exhibit strongly coupled magnetic order and electronic properties are crucial for both fundamental research and technological applications. However, finding a material that not only shows remarkable magnetoresistive responses but also has an easily tunable ground state remains a challenge. Here, we report successful manipulation of the magnetic and transport properties of EuCd$_2$P$_2$, which is transformed from an A-type antiferromagnet ($T_\mathrm{N}$ = 11 K) exhibiting colossal magnetoresistance into a ferromagnet ($T_\mathrm{C}$ = 47 K) with metallic behavior. The dramatic alteration results from a low hole concentration of $10^{19}$ cm$^{-3}$ induced by changing the growth conditions. Electronic structure and total energy calculations confirm the tunability of magnetism with a small carrier concentration for EuCd$_2$P$_2$. It is feasible to switch between the magnetic states by using field-effect to control the carrier density, thereby changing the magneto-electronic response. The controllable magnetism and electrical transport of EuCd$_2$P$_2$ make it a potential candidate for spintronics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_05823 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Manipulating magnetism and transport properties of EuCd$_2$P$_2$ with a low carrier concentration Chen, Xiyu Wang, Ziwen Zhou, Zhiyu Yang, Wuzhang Liu, Yi Lu, Jia-Yi Ren, Zhi Cao, Guang-Han Tafti, Fazel Dong, Shuai Wang, Zhi-Cheng Materials Science Strongly Correlated Electrons Materials that exhibit strongly coupled magnetic order and electronic properties are crucial for both fundamental research and technological applications. However, finding a material that not only shows remarkable magnetoresistive responses but also has an easily tunable ground state remains a challenge. Here, we report successful manipulation of the magnetic and transport properties of EuCd$_2$P$_2$, which is transformed from an A-type antiferromagnet ($T_\mathrm{N}$ = 11 K) exhibiting colossal magnetoresistance into a ferromagnet ($T_\mathrm{C}$ = 47 K) with metallic behavior. The dramatic alteration results from a low hole concentration of $10^{19}$ cm$^{-3}$ induced by changing the growth conditions. Electronic structure and total energy calculations confirm the tunability of magnetism with a small carrier concentration for EuCd$_2$P$_2$. It is feasible to switch between the magnetic states by using field-effect to control the carrier density, thereby changing the magneto-electronic response. The controllable magnetism and electrical transport of EuCd$_2$P$_2$ make it a potential candidate for spintronics. |
| title | Manipulating magnetism and transport properties of EuCd$_2$P$_2$ with a low carrier concentration |
| topic | Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2406.05823 |