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The complex permittivity and permeability of superparamagnetic iron-oxide nanoparticles has been quantified using a circular waveguide assembly with a static magnetic field to align the nanoparticle's magnetization. The high sensitivity of…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 B. M. Yao , Y. S. Gui , M. Worden , T. Hegmann , M. Xing , X. S. Chen , W. Lu , Y. Wroczynskyj , J. van Lierop , C. -M. Hu

We measure electrically detected magnetic resonance (EDMR) on organic light-emitting diodes (OLEDs) made of the polymer poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) at room temperature and high magnetic fields, where…

Mesoscale and Nanoscale Physics · Physics 2018-04-18 H. Malissa , R. Miller , D. L. Baird , S. Jamali , G. Joshi , M. Bursch , S. Grimme , J. van Tol , J. M. Lupton , C. Boehme

Recent experiments for linear magnetoelectric (ME) response in honeycomb antiferromagnet Co$_4$Nb$_2$O$_9$ revealed that the electric polarization can be manipulated by the in-plane rotating magnetic field in a systematic way. We propose…

Strongly Correlated Electrons · Physics 2018-01-17 Yuki Yanagi , Satoru Hayami , Hiroaki Kusunose

Nano-magnonic crystals are magnetic waveguides whose magnetic parameters are modulated at the nanoscale. The super-lattice structure enables a band structure and magnonic band-gaps. Here, we numerically investigate the field tunability of…

Mesoscale and Nanoscale Physics · Physics 2025-01-06 A. Roxburgh , P. Micaletti , F. Montoncello , E. Iacocca

Certain species of living creatures are known to orientate themselves in the geomagnetic field. Given the small magnitude of approximately 48 {\mu}T, the underlying quantum mechanical phenomena are expected to exhibit coherence times…

Transition metal defects in SiC give rise to localized electronic states that can be optically addressed in the telecom range in an industrially mature semiconductor platform. This has led to intense scrutiny of the spin and optical…

This Perspective surveys the state-of-the-art and future prospects of science and technology employing the nanoconfined light (nanophotonics and nanoplasmonics) in combination with magnetism. We denote this field broadly as nanoscale…

Based on the previously suggested model of nanoscale dislocations induced Josephson junctions and their arrays, we study the magnetic field induced electric polarization effects in intrinsically granular superconductors. In addition to a…

Superconductivity · Physics 2015-06-25 Sergei Sergeenkov

Stacking monolayer semiconductors into heterostructures allows for control of their optical and electronic properties, offering advantages for nanoscale electronics, optoelectronics, and photonics. Specifically, adding a thin spacer between…

Mesoscale and Nanoscale Physics · Physics 2025-09-15 Sara A. Elrafei , Tom T. C. Sistermans , Alberto G. Curto

Heavily-doped semiconductor nanocrystals characterized by a tunable plasmonic band have been gaining increasing attention recently. Herein, we introduce this type of materials focusing on their structural and photo physical properties.…

We studied spin transport in four organic semiconductors (OSCs) with different electronic properties, with Fe and Co as the top and bottom ferromagnetic (FM) contacts, respectively. Magnetoresistance (MR) effects were observed up to room…

Materials Science · Physics 2012-05-14 Yaohua Liu , Taegweon Lee , Howard E. Katz , Daniel H. Reich

Nanophotonic structures provide an efficient route to enhancing magneto-optical effects by concentrating electromagnetic fields at subwavelength scales. In this work, we propose and experimentally demonstrate a helicity-preserving…

Polymer nanofibers are one-dimensional organic hydrocarbon systems containing conducting polymers where the non-linear local excitations such as solitons, polarons and bipolarons formed by the electron-phonon interaction were predicted.…

Mesoscale and Nanoscale Physics · Physics 2012-10-18 A. Choi , K. H. Kim , S. J. Hong , M. Goh , K. Akagi , R. B. Kaner , N. N. Kirova , S. A. Brazovskii , A. T. Johnson , D. A. Bonnell , E. J. Mele , Y. W. Park

The understanding of how the sub-nanoscale exchange interaction evolves in macroscale correlations and ordered phases of matter, such as magnetism and superconductivity, requires to bridge the quantum and classical worlds. This monumental…

Mesoscale and Nanoscale Physics · Physics 2016-03-23 D. Bossini , S. Dal Conte , Y. Hashimoto , A. Secchi , R. V. Pisarev , Th. Rasing , G. Cerullo , A. V. Kimel

We observe a bilinear magnetic field-induced electric polarization of 50 $\mu C/m^2$ in single crystals of NiCl$_2$-4SC(NH$_2$)$_2$ (DTN). DTN forms a tetragonal structure that breaks inversion symmetry, with the highly polar thiourea…

Materials Science · Physics 2015-05-19 V. S. Zapf , F. Nasreen , F. Wolff-Fabris , A. Paduan-Filho

Exploration of spin-currents in organic semiconductors (OSECs) induced by resonant microwave absorption in ferromagnetic substrates has been of great interest for potential spintronics applications. Due to the inherently weak spin-orbit…

An attractive feature of magnetic adatoms and molecules for nanoscale applications is their superparamagnetism, the preferred alignment of their spin along an easy axis preventing undesired spin reversal. The underlying magnetic anisotropy…

Mesoscale and Nanoscale Physics · Physics 2014-07-22 Maciej Misiorny , Michael Hell , Maarten R. Wegewijs

The motivation to develop materials for quantum technologies has put exploration of novel quantum states of matter at the focus of several research fields, with particular efforts towards understanding and controlling the behaviour of…

Binary random compacts with different proportions of small (volume V) and large (volume 2V) bare maghemite nanoparticles (NPs) are used to investigate the effect of controllably broadening the particle size distribution on the magnetic…

Both DC and AC magnetization measurements were performed on the NdFeAsO0.88F0.12 superconductor to investigate the influence of magnetism on the superconducting properties of this system. The crossover of the ZFC and FC magnetic…

Superconductivity · Physics 2010-04-01 Y. Ding , Y. Sun , X. D. Wang , H. C. Wang , Z. X. Shi , Z. A. Ren , J. Yang , W. Lu