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Using first principles calculations as based on density functional theory, we propose a class of so far unexplored diluted ferromagnetic semiconductors and half-metals. Here, we study the electronic properties of recently synthesized $ 4d $…

Materials Science · Physics 2015-05-27 Abdesalem Houari , Samir F. Matar , Volker Eyert

Atomically thin two-dimensional (2D) semiconductors such as molybdenum disulphide (MoS2) hold great promise in electrical, optical, and mechanical devices and display novel physical phenomena such as coupled spin-valley physics and the…

Experiments on a sufficiently disordered two-dimensional (2D) electron system in silicon reveal a new and unexpected kind of metallic behavior, where the conductivity decreases as \sigma (n_s,T)=\sigma (n_s,T=0)+A(n_s)T^2 (n_s-carrier…

Condensed Matter · Physics 2009-10-31 X. G. Feng , Dragana Popovic , S. Washburn , V. Dobrosavljevic

We present a comprehensive first-principles study of the structural and elastic properties of 2H-MX$_2$ transition metal dichalcogenides (TMDs) (M = W, Mo, Ta, Nb; X = S, Se). Using density functional theory with various van der Waals…

Materials Science · Physics 2025-05-12 S. Azadi , A. Azhar , R. V. Belosludov , T. D. Kühne , M. S. Bahramy

We report thickness-tuned electrical transport and Hall resistivity in highly anisotropic three-dimensional Dirac semimetal ZrTe5 nanosheets. We find that when the thickness of the nanosheet is blow about 40 nm, the system takes a clear…

Mesoscale and Nanoscale Physics · Physics 2017-04-05 Jianwei Lu , Guolin Zheng , Xiangde Zhu , Wei Ning , Hongwei Zhang , Yuyan Han , Jiyong Yang , Haifeng Du , Kun Yang , Haizhou Lu , Yuheng Zhang , Mingliang Tian

Lateral charge transport of a two-dimensional (2D) electronic system can be much influenced by feeding a current into another closely spaced 2D conductor, known as the Coulomb drag phenomenon -- a powerful probe of electron-electron…

Mesoscale and Nanoscale Physics · Physics 2025-03-04 Yingjia Liu , Kaining Yang , Kenji Watanabe , Takashi Taniguchi , Wencai Ren , Zheng Vitto Han , Siwen Zhao

Two-dimensional materials are of interest for their exotic properties, for example, superconductivity, and highly tunability. Focusing on phonon-mediating superconductivity, one would propose to promote critical temperature by substituting…

Superconductivity · Physics 2024-05-22 Haomin Fei , Ping Cui , Zhenyu Zhang

We report electrical and thermal transport properties of Mn-based material BaMn$_2$Bi$_2$ with ThCr$_2$Si$_2$ structure. The resistivity of the antiferromagnetic BaMn$_2$Bi$_2$ shows a metal-semiconductor transition at $\sim 80$ K with…

Strongly Correlated Electrons · Physics 2016-04-19 Kefeng Wang , C. Petrovic

We investigate the effect of Mn substitution in Fe$_2$Ti$_{1-x}$Mn$_x$Sn on electronic structure and magnetic and electrical transport properties. The spin-polarized density of states calculations using density-functional theory (DFT)…

Materials Science · Physics 2025-08-20 Kulbhushan Mishra , Shishir Kumar Pandey , S. Chaudhuri , Rajeev Rawat , P. A. Bhobe

We report results of the first studies on the magnetic and transport properties of a new material CeNiBi_2. The magnetic susceptibility exhibits a sharp peak at T_N = 6K, indicating an antiferromagnetic phase transition. This…

Strongly Correlated Electrons · Physics 2009-11-07 M. H. Jung , A. H. Lacerda , T. Takabatake

We report results of magnetization, zero field resistivity and magnetoresistance measurements in ferromagnetic Heusler alloy Co$_2$TiSn. There is a striking change in the character of electron transport as the system undergoes the…

Materials Science · Physics 2009-11-11 S. Majumdar , M. K. Chattopadhyay , V. K. Sharma , K. J. S. Sokhey , S. B. Roy , P. Chaddah

Local magnetic impurities arising from atomic vacancies in two-dimensional (2D) nanosheets are predicted to have a profound effect on charge transport due to resonant scattering, and provide a handle for enhancing thermoelectric properties…

The thermal conductivities of MoS2 and WS2 have been reported by some experimental and theoretical studies, however, the results are different from each other. Here, thermal transport properties of twelve types of single layer transition…

Computational Physics · Physics 2016-12-19 Zhongwei Zhang , Yuee Xie , Yulou Ouyang , Yuanping Chen

Two-dimensional (2-D) transition metal dichalcogenides (TMDs) have shown numerous interesting physical and chemical properties, making them promising materials for electronic, optoelectronic, and energy applications. Tuning thermal…

Materials Science · Physics 2016-09-07 Xiaokun Gu , Ronggui Yang

Transition metal dichalcogenides (TMDs) have emerged as a promising class of materials for spintronics, with the aim of promoting efficient spin-charge conversion (SCC) in TMD/ferromagnet (FM)-based devices. The MoTe$_2$ semimetal with…

We report an optimized chemical vapor transport method to grow single crystals of (Mn$_{1-x}$Ni$_x$)$_2$P$_2$S$_6$ where x = 0, 0.3, 0.5, 0.7 & 1. Single crystals up to 4\,mm\,$\times$\,3\,mm\,$\times$\,200\,$\mu$m were obtained by this…

Strongly Correlated Electrons · Physics 2021-07-09 Y. Shemerliuk , Y. Zhou , Z. Yang , G. Cao , A. U. B. Wolter , B. Büchner , S. Aswartham

Transition-metal dichalcogenides (TMDs) are layered compounds that support many electronic phases, including various charge density waves, superconducting, and Mott insulating states. Their intercalation with magnetic ions introduces…

Transition metal dichalcogenides (TMDs) are layered semiconducting van der Waal crystals and promising materials for a wide range of electronic and optoelectronic devices. Realizing practical electrical and optoelectronic device…

Mesoscale and Nanoscale Physics · Physics 2019-08-05 Hao Lee , S. Deshmukh , Jing Wen , V. Z. Costa , J. S. Schuder , M. Sanchez , A. S. Ichimura , Eric Pop , Bin Wang , A. K. M. Newaz

In this article, we report the detailed magneto transport measurements of the topological semimetal (TSM) candidate, Sn2Pd. Single crystal of Sn2Pd is synthesized through the self-flux method. Phase purity and crystalline morphology are…

Superconductivity · Physics 2022-07-07 M. M. Sharma , V. P. S. Awana

This paper demonstrates the high-quality tunnel barrier characteristics and layer number controlled tunnel resistance of a transition metal dichalcogenide (TMD) measuring just a few monolayers in thickness. Investigation of vertical…