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Magnetic monopoles have provided a rich field of study, leading to a wide area of research in particle physics, solid state physics, ultra-cold gases, superconductors, cosmology, and gauge theory. So far, no true magnetic monopoles were…

Instrumentation and Detectors · Physics 2014-06-23 A. Béché , R. Van Boxem , G. Van Tendeloo , J. Verbeeck

Single crystal of CeAl has been grown by flux method using Ce-Al self-flux. Several needle like single crystals were obtained and the length of the needle corresponds to the [001] crystallographic direction. Powder x-ray diffraction…

Strongly Correlated Electrons · Physics 2015-06-22 Pranab Kumar Das , A. Thamizhavel

Investigations over half a century have indicated that mechanical forces induce neurite growth - with neurites elongating at a rate of 0.1-0.3{\mu}mh^{-1} per pico-Newton (pN) of applied force - when mechanical tension exceeds a threshold,…

Cell Behavior · Quantitative Biology 2018-10-22 V. Raffa , F. Falcone , M. P. Calatayud , G. F. Goya , A. Cuschieri

Nano/micro-scale mechanical properties of multiferroic materials can be controlled by the external magnetic or electric field due to the coupling interaction. For the first time, a modularized multi-field nanoindentation apparatus for…

Instrumentation and Detectors · Physics 2013-06-25 Hao Zhou , Yongmao Pei , Hu Huang , Hongwei Zhao , Faxin Li , Daining Fang

We describe the electrically enhanced growth of needle crystals from the vapor phase, for which there exists a morphological instability above a threshold applied potential. Our improved theoretical treatment of this phenomenon shows that…

Materials Science · Physics 2016-08-31 Kenneth G. Libbrecht , Timothy Crosby , Molly Swanson

Molecular chirality is a key design property for many technologies including bioresponsive imaging, circularly polarized light detection and emission, molecular motors and switches. Imaging and manipulating the primary steps of transient…

Living organisms have mastered the dynamic control of internal stresses to perform an array of functions, such as change shape and locomote. State-of-the-art attempts to replicate this ability in synthetic materials are rudimentary in…

Soft Condensed Matter · Physics 2021-02-16 Ido Levin , Robert Deegan , Eran Sharon

Animal cells in tissues are supported by biopolymer matrices, which typically exhibit highly nonlinear mechanical properties. While the linear elasticity of the matrix can significantly impact cell mechanics and functionality, it remains…

Polar textures have attracted significant attention in recent years as a promising analog to spin-based textures in ferromagnets. Here, using optical second harmonic generation based circular dichroism, we demonstrate deterministic and…

While electrons moving perpendicular to a magnetic field are confined to cyclotron orbits, they can move freely parallel to the field. This simple fact leads to complex current flow in clean, low carrier density semi-metals, such as…

The observation of isolated positive and negative charges, but not isolated magnetic north and south poles, is an old puzzle. Instead, evidence of effective magnetic monopoles has been found in the abstract momentum space. Apart from…

Mesoscale and Nanoscale Physics · Physics 2010-11-19 Kjetil M. D. Hals , Anh Kiet Nguyen , Xavier Waintal , Arne Brataas

A new type of decelerator is presented where polar neutral molecules are guided and decelerated using the principle of traveling electric potential wells, such that molecules are confined in stable three-dimensional traps throughout. This…

Atomic Physics · Physics 2010-05-24 Andreas Osterwalder , Samuel A. Meek , Georg Hammer , Henrik Haak , Gerard Meijer

Crossed magnetic field effects on bulk high-temperature superconductors have been studied both experimentally and numerically. The sample geometry investigated involves finite-size effects along both (crossed) magnetic field directions. The…

Using a first principles approach, we study the electron transport properties of a new class of molecular wires containing fluorenone units, whose features open up new possibilities for controlling transport through a single molecule. We…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 C. J. Lambert , I. M. Grace , T. Papadopoulos

Materials that exhibit strongly coupled magnetic order and electronic properties are crucial for both fundamental research and technological applications. However, finding a material that not only shows remarkable magnetoresistive responses…

Cells control their size to cope with noise during growth and division. Eukaryotic cells exhibiting "sizer" control (targeting a specific size before dividing) may rely on molecular concentration thresholds, but simple implementations of…

Biological Physics · Physics 2026-05-08 Motasem ElGamel , Lucas Ribaudo , Andrew Mugler

Altermagnetic properties have been recently proposed in polar magnetic oxides, M$_{2}$Mo$_{3}$O$_{8}$ (M = Mn, Fe, Co, Ni), where improved characteristics of stronger magnetoelectric coupling and higher magnetic transition temperatures were…

In this work a design is proposed for an active, permanent magnet based, self-propelled magnetic bearing i.e. levitating motor having the following features : (a) simple winding structure, (b) high load supporting capacity, (c) no…

Classical Physics · Physics 2017-02-15 B Shayak

The performance of nanoscale magnetic devices is often limited by the presence of thermal fluctuations, while in micro-nanofluidic applications the same fluctuations may be used to spread reactants or drugs. Here we demonstrate the…

Soft Condensed Matter · Physics 2019-01-30 Ralph L. Stoop , Arthur V. Straube , Pietro Tierno

Numerical modeling of electrodynamic aggregation is carried out for a random ensemble of magnetized nanodust taken as a many body system of strongly magnetized thin rods (i.e., one-dimensional static magnetic dipoles), which possess…

Computational Physics · Physics 2009-01-14 A. B. Kukushkin , N. L. Marusov , V. S. Neverov , I. B. Semenov , K. V. Cherepanov , P. V. Minashin
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