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Among several well-known transition metal-based compounds, the van der Waals (vdW) Fe3-xGeTe2 (FGT) magnet is a strong candidate for use in two-dimensional (2D) magnetic devices due to its strong perpendicular magnetic anisotropy, sizeable…

The discovery of van der Waals magnets has established a new domain in the field of magnetism, opening novel pathways for the electrical control of magnetic properties. In this context, Fe3GeTe2 (FGT) emerges as an exemplary candidate owing…

Accurately measuring the magnetocaloric effect is necessary to foster the development of magnetic refrigeration devices. However, current methods are inconvenient, requiring different instruments to measure each individual property or a…

Magnetization and specific heat measurements on a UIrSi3 single crystal reveal Ising-like antiferromagnetism below T$_N$ = 41.7 K with easy magnetization direction along the c-axis of tetragonal structure. The antiferromagentic ordering is…

Critical fluctuations play a fundamental role in determining the spin orders for low-dimensional quantum materials, especially for recently discovered two-dimensional (2D) magnets. Here we employ the quantum decoherence imaging technique…

Mesoscale and Nanoscale Physics · Physics 2024-07-02 Yuxin Li , Zhe Ding , Chen Wang , Haoyu Sun , Zhousheng Chen , Pengfei Wang , Ya Wang , Ming Gong , Hualing Zeng , Fazhan Shi , Jiangfeng Du

We report a dc magnetization study of the critical phenomenon around the ferromagnetic transition temperature T_C in high-quality single crystals of uranium ferromagnetic superconductors UGe2 and URhGe. The critical exponents, beta for the…

Superconductivity · Physics 2014-03-26 Naoyuki Tateiwa , Yoshinori Haga , Tatsuma D. Matsuda , Etsuji Yamamoto , Zachary Fisk

Material research has been a major driving force in the development of modern nano-electronic devices. In particular, research in magnetic thin films has revolutionized the development of spintronic devices; identifying new magnetic…

Cr$_2$Ge$_2$Te$_6$ is a quasi-2D semiconducting van der Waals ferromagnet down to the bilayer with great potential for technological applications. Engineering the critical temperature to achieve room temperature applications is one of the…

Strongly Correlated Electrons · Physics 2022-05-23 S. Spachmann , A. Elghandour , S. Selter , B. Büchner , S. Aswartham , R. Klingeler

Van der Waals (vdW) ferromagnets are an important class of materials for spintronics applications. The recent discovery of atomically vdW magnets CrI$_3$ and Cr$_2$Ge$_2$Te$_6$ has triggered a renaissance in the area of two-dimensional (2D)…

Strongly Correlated Electrons · Physics 2021-10-22 Yu Liu , Zhixiang Hu , Eli Stavitski , Klaus Attenkofer , C. Petrovic

The thermodynamic properties of the bilayer Sr$_3$Ru$_2$O$_7$ at very low temperatures are investigated by a realistic tight-binding model with the on-site interactions treated at the mean-field level. Due to the strong spin-orbit coupling,…

Strongly Correlated Electrons · Physics 2016-03-04 Wei-Cheng Lee , Congjun Wu

A comparative study of the magnetocaloric effect (MCE) in metals within the single-band Hubbard model on the face-centered cubic (fcc) lattice using both mean-field (Stoner) approximation (MFA) and dynamical mean-field theory (DMFT) is…

Strongly Correlated Electrons · Physics 2020-01-08 P. A. Igoshev , I. A. Nekrasov , N. S. Pavlov , T. H. Chinyaev , E. O. Yakupov

Critical behaviour study in magnetism is important owing to its application for understanding the nature of underlying spin-spin interactions by determining the critical parameters in the vicinity of a phase transition. In this article, we…

Materials Science · Physics 2023-07-21 Afsar Ahmed , Arnab Bhattacharya , Samik DuttaGupta , I. Das

We report high pressure magnetic susceptibility and electrical resistivity measurements on Ca_{3}Ir_{4}Sn_{13} single crystals up to 60 kbar. These measurements allow us to follow the evolution of the superconducting critical temperature…

MnBi$_2$Te$_4$ and MnBi$_4$Te$_7$ are antiferromagnetic topological insulators belonging to the MnBi$_{2n}$Te$_{3n+1}$ series, where structural layering provides a natural route to tune magnetic interaction in van der Waals magnets. Despite…

Materials Science · Physics 2026-03-12 Nazma Firdosh , Shreyashi Sinha , Sujit Manna

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…

Materials Science · Physics 2023-10-04 Guru Dutt Gupt , P. D. Babu , R. S. Dhaka

We report a comprehensive high-field/high-frequency electron spin resonance (ESR) study on single crystals of the van der Waals magnet CrCl$_3$. This material, although being known for quite a while, has received recent significant…

Materials Science · Physics 2020-06-09 J. Zeisner , K. Mehlawat , A. Alfonsov , M. Roslova , T. Doert , A. Isaeva , B. Büchner , V. Kataev

We studied the electrical transport on $\beta$-Fe$_{4+\delta}$Se$_{5}$ single-crystal nanowires, exhibiting $\sqrt{5}\times\sqrt{5}$ Fe-vacancy order and mixed valence of Fe. We observed a first-order metal-insulator transition of the…

We report the results of the pressure-dependent measurements of the static magnetization and of the ferromagnetic resonance (FMR) of Cr$_2$Ge$_2$Te$_6$ to address the properties of the ferromagnetic phase of this quasi-two-dimensional van…

Single-crystal growth, magnetic properties, and magnetocaloric effect of the $S = 3/2$ kagome ferromagnet Li$_9$Cr$_3$(P$_2$O$_7$)$_3$(PO$_4$)$_2$ (trigonal, space group: $P\bar{3}c1$) are reported. Magnetization data suggest dominant…

High-quality single crystals of the two-dimensional van der Waals ferromagnet Fe$_3$GaTe$_2$ (FGaT) were successfully grown using the chemical vapour transport method, which effectively reduced surface impurities compared with conventional…

Strongly Correlated Electrons · Physics 2026-05-12 Po-Chun Chang , Sabreen Hammouda , Yung-Hsiang Tung , Yishui Zhou , Iurii Kibalin , Bachir Ouladdiaf , Chao-Hung Du , Yixi Su