Details

Autor(en) / Beteiligte

• Javid, Muhammad
• Jiang, Xue
• Gao, Yinlu
• Zhao, Lizhong
• Zhang, Xuefeng
• Xu, Xiaohui
• Farid, Amjad
• Saleem, Muhammad Farooq
• Zuo, Xueqing
• Zhao, Yongpeng
• Pan, Lujun
• Dong, Xinglong

Titel

Experimental and Theoretical Validation of Room Temperature Intrinsic Ferromagnetism in Cr3C2 Due to Interstitial Carbon Atoms

Ist Teil von

• Physica status solidi. PSS-RRL. Rapid research letters, 2022-11, Vol.16 (11), p.n/a

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2022

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Ferromagnetism is explored in Cr3C2 from microscopic to electronic levels and the spin coupling is attributed to the p electrons of the nearest‐neighbor carbon atoms around the Cr–C atomic interactions. By using the spin‐polarized density functional calculations, four models are formulated. The models reveal that the C atoms seated in tri‐prism I site can induce magnetic moments and the C vacancies can also take part in the induced magnetic moment. The p–d orbital interactions between C interstitial atom and Cr atom contribute to two asymmetric states of majority and minority spins and lead to weak magnetic moments. The C interstitial atoms and C vacancies in the crystal lattice of Cr3C2 are observed by high‐resolution transmission electron microscopy and electron‐spin resonance (ESR) techniques. The magnetic properties of Cr3C2 are investigated by a superconducting quantum interference device. Ferromagnetism is explored from microscopic to electronic levels in Cr3C2 nanocapsules (NCs). Our density functional theory calculations reveal that the carbon atoms seated in C‐triprs I sites along with C atoms vacancies can induce magnetic moments. Magnetic signal in Cr3C2 NCs experimentally recognizes through electron‐spin resonance (ESR) and superconducting quantum interference device techniques.