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Transistor structures comprising graphene and sub-wavelength metal gratings hold a great promise for plasmon-enhanced terahertz detection. Despite considerable theoretical effort, little experimental evidence for terahertz plasmons in such…

Declining the lattice thermal conductivity in graphene is essential for its thermoelectric applications. In high electron density systems, scatterings of phonons by electrons are no less than the phonon scatterings by other phonons. With…

Materials Science · Physics 2019-08-08 Ajit Jena , Wu Li

Graphene plasmons hold immense potential for terahertz (THz) detector application due to their fascinating interactions between radiation and matter. However, it has remained challenging to excite and manipulate graphene plasmons within…

We present a simple micromanipulation technique to transfer suspended graphene flakes onto any substrate and to assemble them with small localized gates into mechanical resonators. The mechanical motion of the graphene is detected using an…

Mesoscale and Nanoscale Physics · Physics 2012-03-06 Xuefeng Song , Mika Oksanen , Mika A. Sillanpää , H. G. Craighead , J. M. Parpia , Pertti J. Hakonen

The introduction and control of ferromagnetism in graphene opens up a range of new directions for fundamental and applied studies. Several approaches have been pursued so far, such as introduction of defects, functionalization with adatoms,…

Mesoscale and Nanoscale Physics · Physics 2016-11-04 J. C. Leutenantsmeyer , A. A. Kaverzin , M. Wojtaszek , B. J. van Wees

Graphene exhibits extraordinary electronic and mechanical properties, and extremely high thermal conductivity. Being a very stable atomically thick membrane that can be suspended between two leads, graphene provides a perfect test platform…

We report a microwave study of the longitudinal and transverse transport properties of the quasi-one-dimensional organic conductor (TMTSF)$_2$PF$_6$ in its normal phase. The contactless technique have provided a direct measurement of the…

Strongly Correlated Electrons · Physics 2009-10-31 P. Fertey , M. Poirier , P. Batail

Graphene is conceivably the most nonlinear optoelectronic material. Its nonlinear optical coefficients in the terahertz (THz) frequency range surpass those of other materials by many orders of magnitude. This, in particular, allows one to…

As carriers slowly move through a disordered energy landscape in organic semiconductors, tiny spatial variations in spin dynamics relieve spin blocking at transport bottlenecks or in the electron-hole recombination process that produces…

Mesoscale and Nanoscale Physics · Physics 2016-03-14 Yifei Wang , Kevser Sahin-Tiras , Nicholas J. Harmon , Markus Wohlgenannt , Michael E. Flatté

We calculate the linear transverse current current response function for graphene at finite temperature and chemical potential. Within the Random Phase Approximation, we then discuss general aspects of transverse plasmons beyond the local…

Mesoscale and Nanoscale Physics · Physics 2013-12-12 A. Gutiérrez-Rubio , T. Stauber , F. Guinea

The one-dimensional side gate based on graphene edges shows a significant capability of reducing the channel length of field-effect transistors, further increasing the integration density of semiconductor devices. The nano-scale electric…

Graphene revealed a number of unique properties beneficial for electronics, including exceptionally high electron mobility and widely tunable Fermi level. However, graphene does not have an electron energy band gap, which presents a serious…

Materials Science · Physics 2015-10-16 Alexander A. Balandin

Making devices with graphene necessarily involves making contacts with metals. We use density functional theory to study how graphene is doped by adsorption on metal substrates and find that weak bonding on Al, Ag, Cu, Au and Pt, while…

Materials Science · Physics 2009-11-13 G. Giovannetti , P. A. Khomyakov , G. Brocks , V. M. Karpan , J. van den Brink , P. J. Kelly

We investigate the electronic band structure of graphene on a series of two-dimensional magnetic transition-metal phosphorus trichalcogenide monolayers, MPX$_3$ with M={Mn,Fe,Ni,Co} and X={S,Se}, with first-principles calculations. A…

Mesoscale and Nanoscale Physics · Physics 2022-07-22 Klaus Zollner , Jaroslav Fabian

We report high-field electron spin resonance studies of the altermagnetic material $\alpha$-MnTe. In magnetic fields applied parallel to the triangular Mn$^{2+}$ layers we observed a single resonance line, corresponding to an…

Strongly Correlated Electrons · Physics 2025-10-29 K. Yu. Povarov , J. Wosnitza , S. Rößler , M. Schmidt , A. A. Tsirlin , S. A. Zvyagin

Recent advances in tuning the correlated behavior of graphene and transition-metal dichalcogenides (TMDs) have opened a new frontier in the study of many-body physics in two dimensions and promise exciting possibilities for new quantum…

Strongly Correlated Electrons · Physics 2019-11-06 Nityan L. Nair , Eran Maniv , Caolan John , Spencer Doyle , J. Orenstein , James G. Analytis

Rhombohedral multilayer graphene, with its flat electronic bands and concentrated Berry curvature, is a promising material for the realization of correlated topological phases of matter. When aligned to an adjacent hexagonal boron nitride…

Mesoscale and Nanoscale Physics · Physics 2025-09-16 Samuel H. Aronson , Tonghang Han , Zhengguang Lu , Yuxuan Yao , Kenji Watanabe , Takashi Taniguchi , Long Ju , Raymond C. Ashoori

Recent theoretical and experimental results from quasi-one dimensional heavy hole systems have suggested that heavy hole gases have a strongly anisotropic g factor. In this theoretical paper, we propose a method for measuring this…

Mesoscale and Nanoscale Physics · Physics 2019-02-12 Samuel Bladwell , Oleg Sushkov

Formation of wrinkles is a common phenomenon in the large area growth of two dimensional layered materials on metallic substrates. Wrinkles can significantly affect the working of 2D materials based large scale electronic devices and…

Mesoscale and Nanoscale Physics · Physics 2021-08-11 Monika Moun , Aastha Vasdev , Rajashekhar Pujar , K. Priya Madhuri , U. Mogera , Neena S. John , G. U. Kulkarni , Goutam Sheet

Two dimensional (2D) materials provide a unique platform to explore the full potential of magnetic proximity driven phenomena, which can be further used for applications in next generation spintronic devices. Of particular interest is to…

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