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Tunable Magnetism in Atomically Thin Itinerant Antiferromagnet with Room-Temperature Ferromagnetic Order.
Lu, Longyu; Wang, Qing; Duan, Hengli; Zhu, Kejia; Hu, Tao; Ma, Yupeng; Shen, Shengchun; Niu, Yuran; Liu, Jiatu; Wang, Jianlin; Ekahana, Sandy Adhitia; Dreiser, Jan; Soh, Y; Yan, Wensheng; Wang, Guopeng; Xiong, Yimin; Hao, Ning; Lu, Yalin; Tian, Mingliang.
Afiliación
  • Lu L; School of Materials Science and Engineering, Anhui University, Hefei 230601, China.
  • Wang Q; Anhui Province Key Laboratory of Low-Energy Quantum Materials and Devices, High Magnetic Field Laboratory, HFIPS, Chinese Academy of Sciences, Hefei, Anhui 230031, China.
  • Duan H; Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Zhu K; Paul Scherrer Institute, 5232 Villigen PSI, Switzerland.
  • Hu T; National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China.
  • Ma Y; School of Physics and Optoelectronics Engineering, Anhui University, Hefei 230601, China.
  • Shen S; School of Materials Science and Engineering, Anhui University, Hefei 230601, China.
  • Niu Y; School of Physics and Optoelectronics Engineering, Anhui University, Hefei 230601, China.
  • Liu J; Department of Physics, University of Science and Technology of China, Hefei 230026, China.
  • Wang J; MAX IV Laboratory, Lund University, Lund 22100, Sweden.
  • Ekahana SA; MAX IV Laboratory, Lund University, Lund 22100, Sweden.
  • Dreiser J; Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China.
  • Soh Y; Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China, Hefei 230026, China.
  • Yan W; Paul Scherrer Institute, 5232 Villigen PSI, Switzerland.
  • Wang G; Paul Scherrer Institute, 5232 Villigen PSI, Switzerland.
  • Xiong Y; Paul Scherrer Institute, 5232 Villigen PSI, Switzerland.
  • Hao N; National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China.
  • Lu Y; School of Physics and Optoelectronics Engineering, Anhui University, Hefei 230601, China.
  • Tian M; School of Physics and Optoelectronics Engineering, Anhui University, Hefei 230601, China.
Nano Lett ; 24(20): 5984-5992, 2024 May 22.
Article en En | MEDLINE | ID: mdl-38728101
ABSTRACT
Addressing the need for modulated spin configurations is crucial, as they serve as the foundational building blocks for next-generation spintronics, particularly in atomically thin structures and at room temperature. In this work, we realize intrinsic ferromagnetism in monolayer flakes and tunable ferro-/antiferromagnetism in (Fe0.56Co0.44)5GeTe2 antiferromagnets. Remarkably, the ferromagnetic ordering (≥1 L) and antiferromagnetic ordering (≥4 L) remain discernible up to room temperature. The TC (∼310 K) of the monolayer flakes sets a record high for known exfoliated monolayer van der Waals magnets. Within the framework of A-type antiferromagnetism, a notable odd-even layer-number effect at elevated temperatures (T = 150 K) is observed. Of particular interest is the strong ferromagnetic order in even-layer flakes at low temperatures. The intricate interplay among magnetic field strength, layer number, and temperature gives rise to a diverse array of phenomena, holding promise not only for new physics but also for practical applications.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nano Lett Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nano Lett Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos