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Exploring the tricritical nature and unconventional magnetoresistance in EuCd2P2: 2 P 2: An in-depth study of complex material characteristics

文献类型：期刊论文

作者Rahman, Azizur2; Rehman, Majeed Ur3,4; Zhang, Yue5; Zhao, Weisheng5; Wang, Jianlin1,6; Chen, Zheng7; Muhammad, Zahir5; Zhang, Lei7
刊名PHYSICAL REVIEW B
出版日期2024-08-07
卷号110
ISSN号2469-9950
DOI10.1103/PhysRevB.110.064407
通讯作者Rehman, Majeed Ur(majeedqau@live.com)
英文摘要EuCd2P2, 2 P 2 , a layered phosphide crystal, exhibits a nonconventional magnetoresistive trend that deviates from typical material behavior. This unique characteristic prompts further intriguing and complex investigation. Herein, we utilize critical exponent analysis, angle-resolved photoemission spectroscopy (ARPES), and density functional theory to uncover physical insights into EuCd2P2. 2 P 2 . Magnetization analysis reveals a persistent ferromagnetic phase above the antiferromagnetic phase, extending to higher temperatures at high magnetic fields. Critical behavior analysis of H H ab reveals critical exponents 9 = 0.2432(2), gamma = 0.883(2), and 8 = 4.63(1), aligning with a three-dimensional tricritical mean-field model coupled with long-range interaction (Q Q = 1.53). The H-T T phase diagram establishes a tricritical point (H H = 620 Oe, T = 18.3 K), signifying diverse spin interactions and magnetic phases. Temperature-dependent ARPES discloses significant modifications in the electronic band spectrum of EuCd2P2 2 P 2 during the spin ordering transitions, characterized by a substantial band gap alteration and valence band splitting. Remarkably, the semiconducting properties of EuCd2P2 2 P 2 remain unaffected throughout these transitions. First-principles simulations unveil a near-degenerate coexistence of layer-antiferromagnetic and-ferromagnetic phases, significant valence band modifications in CdP due to distinct proximity effects induced by the Eu lattice's spin-magnetic moments, and the half-metallic phases in ferromagnetic EuCd2P2 2 P 2 crystals. These findings advance our understanding of magnetic and electronic properties in EuCd2P2. 2 P 2 .
WOS关键词COLOSSAL MAGNETORESISTANCE
资助项目National Natural Science Foundation of China[12350410367] ; National Natural Science Foundation of China[12250410238] ; National Natural Science Foundation of China[62150410438] ; National Natural Science Foundation of China[12374128] ; National Natural Science Foundation of China[12074386] ; National Natural Science Foundation of China[11227902] ; Alliance of International Science Organizations (ANSO)[ANSO-VF-2022-03] ; Alliance of International Science Organizations (ANSO)[ANSO-VF-2024-03] ; Basic Research Program of the Chinese Academy of Sciences Based on Major Scien-tific Infrastructures, China[JZHKYPT-2021-08] ; National Key R and D Program of China[2023YFA1610100] ; National Key R and D Program of China[2019YFA0405600] ; Anhui Provincial Key R and D Program[202104a05020012]
WOS研究方向Materials Science ; Physics
语种英语
WOS记录号WOS:001290009200001
出版者AMER PHYSICAL SOC
资助机构National Natural Science Foundation of China ; Alliance of International Science Organizations (ANSO) ; Basic Research Program of the Chinese Academy of Sciences Based on Major Scien-tific Infrastructures, China ; National Key R and D Program of China ; Anhui Provincial Key R and D Program
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/135506]  
专题中国科学院合肥物质科学研究院
通讯作者Rehman, Majeed Ur
作者单位1.Univ Sci & Technol China, Anhui Lab Adv Photon Sci & Technol, Hefei 230026, Peoples R China
2.Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China
3.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China
4.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
5.Beihang Univ, Hefei Innovat Res Inst, Sch Integrated Circuit Sci & Engn, Hefei 230013, Peoples R China
6.Univ Sci & Technol China, Hefei Natl Res Ctr Phys Sci Microscale, Hefei 230026, Peoples R China
7.Chinese Acad Sci, Hefei Inst Phys Sci, Anhui Key Lab Low Energy Quantum Mat & Devices, High Magnet Field Lab, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Rahman, Azizur,Rehman, Majeed Ur,Zhang, Yue,et al. Exploring the tricritical nature and unconventional magnetoresistance in EuCd2P2: 2 P 2: An in-depth study of complex material characteristics[J]. PHYSICAL REVIEW B,2024,110.
APA Rahman, Azizur.,Rehman, Majeed Ur.,Zhang, Yue.,Zhao, Weisheng.,Wang, Jianlin.,...&Zhang, Lei.(2024).Exploring the tricritical nature and unconventional magnetoresistance in EuCd2P2: 2 P 2: An in-depth study of complex material characteristics.PHYSICAL REVIEW B,110.
MLA Rahman, Azizur,et al."Exploring the tricritical nature and unconventional magnetoresistance in EuCd2P2: 2 P 2: An in-depth study of complex material characteristics".PHYSICAL REVIEW B 110(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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