Magnetic Evolution of Carrier Doping and Spin Dynamics in Diluted Magnetic Semiconductors (Ba,Na)(Zn,Mn)<sub>2</sub>As<sub>2</sub>
The investigation of novel diluted magnetic semiconductors (DMSs) provides a promising platform for studying magnetism and transport characteristics, with significant implications for spintronics. DMSs based on BaZn<sub>2</sub>As<sub>2</sub> are particularly noteworthy due to...
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2025-05-01
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| author | Guoqiang Zhao Yipeng Cai Kenji M. Kojima Qi Sheng James Beare Graeme Luke Xiang Li Yi Peng Timothy Ziman Kan Zhao Zheng Deng Xiancheng Wang Yongqing Li Gang Su Sadamichi Maekawa Bo Gu Yasutomo J. Uemura Changqing Jin |
| author_facet | Guoqiang Zhao Yipeng Cai Kenji M. Kojima Qi Sheng James Beare Graeme Luke Xiang Li Yi Peng Timothy Ziman Kan Zhao Zheng Deng Xiancheng Wang Yongqing Li Gang Su Sadamichi Maekawa Bo Gu Yasutomo J. Uemura Changqing Jin |
| author_sort | Guoqiang Zhao |
| collection | DOAJ |
| description | The investigation of novel diluted magnetic semiconductors (DMSs) provides a promising platform for studying magnetism and transport characteristics, with significant implications for spintronics. DMSs based on BaZn<sub>2</sub>As<sub>2</sub> are particularly noteworthy due to their high Curie temperature (<i>T</i><sub>C</sub>) of 260 K, diverse magnetic states, and potential for multilayer heterojunctions. This study investigates the magnetic evolution of carrier doping and spin dynamics in the asperomagnet (Ba,Na)(Zn,Mn)<sub>2</sub>As<sub>2</sub>, utilizing a combination of magnetization measurements, ac susceptibility, and muon spin rotation (µSR). Key findings include the following: (1) lower transition temperatures and coercive forces in (Ba,Na)(Zn,Mn)<sub>2</sub>As<sub>2</sub> compared to the ferromagnet (Ba,K)(Zn,Mn)<sub>2</sub>As<sub>2</sub>; (2) a dynamic fluctuation peak around the transition temperature observed in both the ac susceptibility and longitudinal field (LF) µSR; and (3) the coexistence of static and dynamic states at low temperatures, exhibiting spin-glass-like characteristics. This study, to the best of our knowledge, may represent the first investigation of asperomagnetic order utilizing µSR techniques. It enhances the understanding of magnetic interactions in BaZn<sub>2</sub>As<sub>2</sub>-based systems and provides valuable insights into the exploration of high <i>T</i><sub>C</sub> DMSs. |
| format | Article |
| id | doaj-art-536ff4f6114d49bcaadd04cbd5eb536a |
| institution | Kabale University |
| issn | 2410-3896 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Condensed Matter |
| spelling | doaj-art-536ff4f6114d49bcaadd04cbd5eb536a2025-08-20T03:27:26ZengMDPI AGCondensed Matter2410-38962025-05-011023010.3390/condmat10020030Magnetic Evolution of Carrier Doping and Spin Dynamics in Diluted Magnetic Semiconductors (Ba,Na)(Zn,Mn)<sub>2</sub>As<sub>2</sub>Guoqiang Zhao0Yipeng Cai1Kenji M. Kojima2Qi Sheng3James Beare4Graeme Luke5Xiang Li6Yi Peng7Timothy Ziman8Kan Zhao9Zheng Deng10Xiancheng Wang11Yongqing Li12Gang Su13Sadamichi Maekawa14Bo Gu15Yasutomo J. Uemura16Changqing Jin17Kavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences, Beijing 101408, ChinaDepartment of Physics, Columbia University, New York, NY 10027, USATRIUMF, Vancouver, BC V6T 2A3, CanadaDepartment of Physics, Columbia University, New York, NY 10027, USADepartment of Physics and Astronomy, McMaster University, Hamilton, ON L8S 4M1, CanadaTRIUMF, Vancouver, BC V6T 2A3, CanadaKavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences, Beijing 101408, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, ChinaKavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences, Beijing 101408, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, ChinaKavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences, Beijing 101408, ChinaKavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences, Beijing 101408, ChinaKavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences, Beijing 101408, ChinaDepartment of Physics, Columbia University, New York, NY 10027, USABeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, ChinaThe investigation of novel diluted magnetic semiconductors (DMSs) provides a promising platform for studying magnetism and transport characteristics, with significant implications for spintronics. DMSs based on BaZn<sub>2</sub>As<sub>2</sub> are particularly noteworthy due to their high Curie temperature (<i>T</i><sub>C</sub>) of 260 K, diverse magnetic states, and potential for multilayer heterojunctions. This study investigates the magnetic evolution of carrier doping and spin dynamics in the asperomagnet (Ba,Na)(Zn,Mn)<sub>2</sub>As<sub>2</sub>, utilizing a combination of magnetization measurements, ac susceptibility, and muon spin rotation (µSR). Key findings include the following: (1) lower transition temperatures and coercive forces in (Ba,Na)(Zn,Mn)<sub>2</sub>As<sub>2</sub> compared to the ferromagnet (Ba,K)(Zn,Mn)<sub>2</sub>As<sub>2</sub>; (2) a dynamic fluctuation peak around the transition temperature observed in both the ac susceptibility and longitudinal field (LF) µSR; and (3) the coexistence of static and dynamic states at low temperatures, exhibiting spin-glass-like characteristics. This study, to the best of our knowledge, may represent the first investigation of asperomagnetic order utilizing µSR techniques. It enhances the understanding of magnetic interactions in BaZn<sub>2</sub>As<sub>2</sub>-based systems and provides valuable insights into the exploration of high <i>T</i><sub>C</sub> DMSs.https://www.mdpi.com/2410-3896/10/2/30diluted magnetic semiconductormagnetic evolutiondynamic fluctuation |
| spellingShingle | Guoqiang Zhao Yipeng Cai Kenji M. Kojima Qi Sheng James Beare Graeme Luke Xiang Li Yi Peng Timothy Ziman Kan Zhao Zheng Deng Xiancheng Wang Yongqing Li Gang Su Sadamichi Maekawa Bo Gu Yasutomo J. Uemura Changqing Jin Magnetic Evolution of Carrier Doping and Spin Dynamics in Diluted Magnetic Semiconductors (Ba,Na)(Zn,Mn)<sub>2</sub>As<sub>2</sub> Condensed Matter diluted magnetic semiconductor magnetic evolution dynamic fluctuation |
| title | Magnetic Evolution of Carrier Doping and Spin Dynamics in Diluted Magnetic Semiconductors (Ba,Na)(Zn,Mn)<sub>2</sub>As<sub>2</sub> |
| title_full | Magnetic Evolution of Carrier Doping and Spin Dynamics in Diluted Magnetic Semiconductors (Ba,Na)(Zn,Mn)<sub>2</sub>As<sub>2</sub> |
| title_fullStr | Magnetic Evolution of Carrier Doping and Spin Dynamics in Diluted Magnetic Semiconductors (Ba,Na)(Zn,Mn)<sub>2</sub>As<sub>2</sub> |
| title_full_unstemmed | Magnetic Evolution of Carrier Doping and Spin Dynamics in Diluted Magnetic Semiconductors (Ba,Na)(Zn,Mn)<sub>2</sub>As<sub>2</sub> |
| title_short | Magnetic Evolution of Carrier Doping and Spin Dynamics in Diluted Magnetic Semiconductors (Ba,Na)(Zn,Mn)<sub>2</sub>As<sub>2</sub> |
| title_sort | magnetic evolution of carrier doping and spin dynamics in diluted magnetic semiconductors ba na zn mn sub 2 sub as sub 2 sub |
| topic | diluted magnetic semiconductor magnetic evolution dynamic fluctuation |
| url | https://www.mdpi.com/2410-3896/10/2/30 |
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