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相关论文: Three-dimensional magnetic critical behavior in Cr…

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Single crystals of CrSbSe$_3$, a structurally pseudo-one-dimensional ferromagnetic semiconductor, were grown using a high-temperature solution growth technique and were characterized by x-ray diffraction, anisotropic, temperature- and…

材料科学 · 物理学 2018-01-24 Tai Kong , Karoline Stolze , Ni Danrui , Satya K. Kushwaha , Robert J. Cava

Recent years have seen a vast increase in research into van der Waals magnetic materials. In many of these systems, magnetism is introduced via light 3\textit{d}-transition metal elements, combined with chalcogenides or halogens. Despite…

The development of room-temperature magnetic semiconductors is critical for advancing spintronic technologies, yet van der Waals magnets like CrI3 exhibit intrinsically low Curie temperatures (Tc = 45 K). This study employs first-principles…

材料科学 · 物理学 2025-08-12 Qing-Han Yang , Jia-Wen Li , Xin-Wei Yi , Xiang Li , Jing-Yang You , Gang Su , Bo Gu

Two-dimensional CrI3 has attracted much attention as it is reported to be a ferromagnetic semiconductor with the Curie temperature around 45K. By performing first-principles calculations, we find that the magnetic ground state of CrI3 is…

计算物理 · 物理学 2019-01-09 Zewen Wu , Jin Yu , Shengjun Yuan

Two-dimensional (2D) ferromagnets with high Curie temperature have long been the pursuit for electronic and spintronic applications. CrI3 is a rising star of intrinsic 2D ferromagnets, however, it suffers from weak exchange coupling. Here…

材料科学 · 物理学 2020-09-22 Yu Guo , Nanshu Liu , Yanyan Zhao , Xue Jiang , Si Zhou , Jijun Zhao

We investigate thickness-dependent transformation from a paramagnetic to ferromagnetic phase in Cr$_{2}$Ge$_{2}$Te$_{6}$ (CGT) in bulk and few-layer flake forms. 2D Ising-like critical transition in bulk CGT occurs at $T_{c}$ = 67 K with…

The recent experimental discovery of intrinsic ferromagnetism in single-layer CrI3 opens a new avenue to low-dimensional spintronics. However, the low Curie temperature Tc=45 K is still a large obstacle to its realistic device application.…

材料科学 · 物理学 2019-06-26 Hongxing Li , Yuan-Kai Xu , Kang Lai , Wei-Bing Zhang

We investigate the magnetic behavior and critical exponents of quaternary CoFeV$_{0.8}$Mn$_{0.2}$Si Heusler alloy to understand the interactions across the Curie temperature ($T_{\rm C}$). The Rietveld refinement of the x-ray diffraction…

材料科学 · 物理学 2023-10-04 Guru Dutt Gupt , P. D. Babu , R. S. Dhaka

The crystallographic, magnetic, and transport properties of the van der Waals bonded, layered compound CrTe3 have been investigated on single crystal and polycrystalline materials. The crystal structure contains layers made up of lozenge…

van der Waals (vdW) magnets are receiving ever-growing attention nowadays due to their significance in both fundamental research on low-dimensional magnetism and potential applications in spintronic devices. High crystalline quality of vdW…

We have synthesized unique colloidal nanoplatelets of the ferromagnetic two-dimensional (2D) van der Waals material CrI3 and have characterized these nanoplatelets structurally, magnetically, and by magnetic circular dichroism spectroscopy.…

We present a thorough study on the magnetoanisotropic properties and magnetocaloric effect in the layered ferromagnetic Cr$_4$Te$_5$ single crystals by performing the critical behaviour analysis of magnetization isotherms. The critical…

材料科学 · 物理学 2022-09-20 Shubham Purwar , Susmita Changdar , Susanta Ghosh , S. Thirupathaiah

Since the celebrated discovery of graphene, the family of two-dimensional (2D) materials has grown to encompass a broad range of electronic properties. Recent additions include spin-valley coupled semiconductors, Ising superconductors that…

The van der Waals magnets CrX$_3$ (X = I, Br, and Cl) exhibit highly tunable magnetic properties and are promising candidates for developing novel two-dimensional (2D) magnetic devices such as magnetic tunnel junctions and spin tunneling…

介观与纳米尺度物理 · 物理学 2022-12-06 Jia Wang , Zahra Ahmadi , David Lujan , Jeongheon Choe , Takashi Taniguchi , Kenji Watanabe , Xiaoqin Li , Jeffrey E. Shield , Xia Hong

Intrinsic structural phase is a crucial foundation for the fundamental physical properties, and for creating innovative devices with unprecedented performances and unique functionalities. Long-range ferromagnetic orders of van der Waals…

The marked interplay between the crystalline, electronic, and magnetic structure of atomically thin magnets has been regarded as the key feature for designing next-generation magneto-optoelectronic devices. In this respect, a detailed…

强关联电子 · 物理学 2020-05-25 Michele Pizzochero , Ravi Yadav , Oleg V. Yazyev

Critical phenomenon at the phase transition reveals the universal and long-distance properties of the criticality. We study the ferromagnetic criticality of the pyrochlore magnet Lu$_2$V$_2$O$_7$ at the ferromagnetic transition…

强关联电子 · 物理学 2019-10-22 N. Su , F. -Y. Li , Y. Y. Jiao , Z. Y. Liu , J. P. Sun , B. S. Wang , Y. Sui , H. D. Zhou , G. Chen , J. -G. Cheng

We report structural, physical properties and electronic structure of van der Waals (vdW) crystal VI3. Detailed analysis reveals that VI3 exhibits a structural transition from monoclinic C2/m to rhombohedral R-3 at Ts ~ 79 K, similar to…

材料科学 · 物理学 2019-06-19 Shangjie Tian , Jian-Feng Zhang , Chenghe Li , Tianping Ying , Shiyan Li , Xiao Zhang , Kai Liu , Hechang Lei

Prior to the onset of the ferromagnetic transition in semimetallic EuB_6, unusual magnetic and electric behavior have been reported. Using a highly sensitive magneto-optical imaging (MOI) technique, we visualize the behavior of magnetic…

强关联电子 · 物理学 2018-12-21 Dibya J. Sivananda , Ankit Kumar , Md. Arif Ali , S. S. Banerjee , Pintu Das , Jens Muller , Zachary Fisk

We grew high-quality single crystals of the 5f electron van der Waals compound UI$_3$ and investigated them by measurements of specific heat and magnetization as functions of temperature and magnetic field. UI$_3$ behaves as an…