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Central to the field of nanophotonics is the ability to engineer the flow of light through nanoscale structures. These structures often have permanent working spectral ranges and optical properties that are fixed during fabrication. Quantum…

Tailor-made magnetic nanostructures offer a variety of functionalities useful for technological applications. In this work, we explore the possibilities of realizing Fe nanostructures at the interfaces of 2D graphene and h-BN by ab initio…

Materials Science · Physics 2013-10-22 Soumyajyoti Haldar , Pooja Srivastava , Olle Eriksson , Prasenjit Sen , Biplab Sanyal

We derive an effective low-energy theory for metallic (armchair and non-armchair) single-wall nanotubes in the presence of an electric field perpendicular to the nanotube axis, and in the presence of magnetic fields, taking into account…

Mesoscale and Nanoscale Physics · Physics 2011-11-15 Jelena Klinovaja , Manuel J. Schmidt , Bernd Braunecker , Daniel Loss

Carbon nanostructures are ideal substrates for functionalization with molecules, since they consist of a single atomic layer giving rise to an extraordinary sensitivity to changes in their surrounding. The functionalization opens a new…

Mesoscale and Nanoscale Physics · Physics 2015-01-20 Ermin Malic , Heiko Appel , Oliver T. Hofmann , Angel Rubio

Electrical control of spins at the nanoscale offers significant architectural advantages in spintronics, because electric fields can be confined over shorter length scales than magnetic fields. Thus, recent demonstrations of electric-field…

Mesoscale and Nanoscale Physics · Physics 2021-10-15 Junjie Liu , Jakub Mrozek , Aman Ullah , Yan Duan , José J. Baldoví , Eugenio Coronado , Alejandro Gaita-Ariño , Arzhang Ardavan

Despite decades of research, the ultimate goal of nanotechnology--top-down manipulation of individual atoms--has been directly achieved with only one technique: scanning probe microscopy. In this Review, we demonstrate that scanning…

Nanoscrolls are papyrus-like nanostructures which present unique properties due to their open ended morphology. These properties can be exploited in a plethora of technological applications, leading to the design of novel and interesting…

Mesoscale and Nanoscale Physics · Physics 2015-01-26 E. Perim , L. D. Machado , D. S. Galvao

Temperature constraints are highly desirable in the experimental setup when seeking the synthesis of new carbon structures. Fluctuations of the Dirac field result in temperature-dependent corrections to the Helfrich-Canham formulation,…

High Energy Physics - Theory · Physics 2024-11-26 Pablo A. Morales , Pavel Castro-Villarreal

We investigate the details of the electronic structure in the neighborhoods of a carbon atom vacancy in graphene by employing magnetization-constrained density-functional theory on periodic slabs, and spin-exact, multi-reference,…

Materials Science · Physics 2013-11-27 M. Casartelli , S. Casolo , G. F. Tantardini , R. Martinazzo

Engineering strong p-wave interactions between fermions is one of the challenges in modern quantum physics. Such interactions are responsible for a plethora of fascinating quantum phenomena such as topological quantum liquids and exotic…

Quantum Gases · Physics 2013-07-11 B. Juliá-Díaz , T. Graß , O. Dutta , D. E. Chang , M. Lewenstein

We demonstrate theoretically that an array of carbon nanoscrolls acts as a hyperbolic magnetic metamaterial in the THz regime with genuine subwavelength operation corresponding to wavelength-to-structure ratio of about 200. Due to the low…

Mesoscale and Nanoscale Physics · Physics 2013-10-30 Vassilios Yannopapas , Marilena Tzavala , Leonidas Tsetseris

Graphene, a two-dimensional crystal made of carbon atoms, provides a new and unexpected bridge between low and high-energy physics. The field has evolved very fast and very good reviews are already available in the literature. Graphene…

Mesoscale and Nanoscale Physics · Physics 2015-06-03 Alberto Cortijo , Francisco Guinea , Maria A. H. Vozmediano

In order to study a magnetic principle of carbon based materials, multiple spin state of zigzag edge modified graphene molecules are analyzed by the first principle density functional theory to select suitable modification element. Radical…

Mesoscale and Nanoscale Physics · Physics 2011-06-15 Norio Ota , Narjes Gorjizadeh , Yoshiyuki Kawazoe

Controlling magnetism of transition metal atoms by pairing with $\pi$ electronic states of graphene is intriguing. Herein, through first - principle computation we explore the possibility of switching magnetization by forming the…

Materials Science · Physics 2018-10-16 T. Tsevelmaa , Chunfeng , D. Odkhuu , N. Tsogbadrakh , S. C. Hong

The interaction between carbon nanostructures like quantum dots and radiation can generate different effects inside the nanomaterial, with the use of computational methods such effects can be predicted and optimize the material allowing a…

Mesoscale and Nanoscale Physics · Physics 2022-05-10 Alexander Leon , Juan E. Gomez , Freddy R. Perez

A powerful technique is introduced for simulating mechanical and electromechanical properties of one-dimensional nanostructures under arbitrary combinations of bending, twisting, and stretching. The technique is based on a novel control of…

Mesoscale and Nanoscale Physics · Physics 2016-09-28 Pekka Koskinen

Energetically the single sheet of graphite (graphene) is more stable than the nanotube. The energy difference between the two systems can be directly related to the strain energy involved in rolling up the graphene sheet to form the…

Materials Science · Physics 2007-05-24 Roby Cherian , Priya Mahadevan

With the increasing demand for low-power electronics, nanomagnetic devices have emerged as strong potential candidates to complement present day transistor technology. A variety of novel switching effects such as spin torque and giant spin…

Mesoscale and Nanoscale Physics · Physics 2018-02-02 Yunkun Xie , Jianhua Ma , Samiran Ganguly , Avik W Ghosh

Single layers of carbon dubbed "graphenes", from which graphite is built, have attracted broad interest in the scientific community because of recent exciting experimental results. Graphene is interesting from a fundamental research…

Materials Science · Physics 2008-01-05 Yakov Kopelevich , Pablo Esquinazi

Due to their extraordinary physical and chemical properties carbon nanotubes reveal a promising potential as biomedical agents for heating, temperature sensoring and drug delivery on the cellular level. Filling carbon nanotubes with…

Medical Physics · Physics 2009-07-29 Ruediger Klingeler , Silke Hampel , Bernd Buechner