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We insert and manipulate a single chlorine atom in chlorine monolayer on a Si(100)-2x1 surface using a scanning tunneling microscope. Two objects were created - a Cl atom in a groove between two dimer rows, and bridge-bonded Cl on a silicon…

Mesoscale and Nanoscale Physics · Physics 2020-07-03 T. V. Pavlova , V. M. Shevlyuga , B. V. Andryushechkin , K. N. Eltsov

The theoretical possibility to use an electron microscope as a spin polarizer is studied. It turns out that a Bessel beam passing a standard magnetic objective lens is intrinsically spin polarized. In the limit of infinitely small detectors…

Quantum Physics · Physics 2015-12-08 Peter Schattschneider , Vincenzo Grillo

Electrical injection and detection of spin-polarized electrons is demonstrated for the first time in a single wafer, all-semiconductor, GaAs-based lateral spintronic device, employing p+-(Ga,Mn)As/n+-GaAs ferromagnetic Esaki diodes as spin…

In-circuit impedance measurement provides useful information for many EMC applications. The inductive coupling approach is a promising in-circuit impedance measurement method due to its non-contact characteristics and simple on-site…

Instrumentation and Detectors · Physics 2022-04-19 Zhenyu Zhao , Fei Fan , Huamin Jie , Zhenning Yang , Minghai Dong , Eng Kee Chua , Kye Yak See

Using circularly polarized light is an alternative to electronic ways for spin injection into materials. Spins are injected at a point of the light illumination, and then diffuse and spread radially due to the in-plane gradient of the spin…

Mesoscale and Nanoscale Physics · Physics 2020-04-29 Di Fan , Rei Hobara , Ryota Akiyama , Shuji Hasegawa

We demonstrate microwave manipulation of the spin states of electrically injected spin-polarized electrons in silicon. Although the silicon channel is bounded by ferromagnetic metal films, we show that moderate microwave power can be…

Mesoscale and Nanoscale Physics · Physics 2013-12-16 C. C. Lo , J. Li , I. Appelbaum , J. J. L. Morton

In recent years, the interest in high intensity proton beams in excess of several milli-Amperes has risen. Potential applications are in neutrino physics, materials and energy research, and isotope production. Continuous wave proton beams…

Most electromechanical devices are in two-dimensional metallic drums under high tensile stress, which causes increased mechanical frequency and quality factor. However, high mechanical frequencies lead to small zero-point displacements…

Quantum Physics · Physics 2018-01-22 Sina Khorasani

The spin injection and accumulation in metallic lateral spin valves with transparent interfaces is studied using d.c. injection current. Unlike a.c.-based techniques, this allows investigating the effects of the direction and magnitude of…

Mesoscale and Nanoscale Physics · Physics 2009-06-12 Fèlix Casanova , Amos Sharoni , Mikhail Erekhinsky , Ivan K. Schuller

Authors describe technical advances that will allow the IsoDAR cyclotron -- being developed for neutrino physics research -- to produce medical isotopes more efficiently than existing cyclotrons can.

Accelerator Physics · Physics 2020-03-23 Jose R. Alonso , Roger Barlow , Janet M. Conrad , Loyd Hoyt Waites

We present a symplectic integrator, based on the canonical midpoint rule, for classical spin systems in which each spin is a unit vector in $\mathbb{R}^3$. Unlike splitting methods, it is defined for all Hamiltonians, and is…

Mathematical Physics · Physics 2023-03-20 Robert I. McLachlan , Klas Modin , Olivier Verdier

A scheme is proposed to electrically measure the spin-momentum coupling in the topological insulator surface state by injection of spin polarized electrons from silicon. As a first approach, devices were fabricated consisting of thin…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 C. Ojeda-Aristizabal , M. S. Fuhrer , N. P Butch , J. Paglione , I. Appelbaum

We propose a superconducting spin-triplet valve, which consists of a superconductor and an itinerant magnetic material, with the magnet showing an intrinsic non-collinear order characterized by a wave vector that may be aligned in a few…

Superconductivity · Physics 2017-10-24 N. G. Pugach , M. Safonchik , T. Champel , M. E. Zhitomirsky , E. Lähderanta , M. Eschrig , C. Lacroix

Driving a spin-logic circuit requires the production of a large output signal by spin-charge interconversion in spin-orbit readout devices. This should be possible by using topological insulators, which are known for their high spin-charge…

A one-positron quantum cyclotron is realized with a single positron suspended indefinitely in the magnetic field of a Penning trap. This opens the way to quantum measurements of the positron magnetic moment, to a precision much higher than…

Instrumentation and Detectors · Physics 2026-05-29 T. G. Myers , L. Soucy , B. A. D. Sukra , B. Sinha , G. Gabrielse

Magnetic $p$-$n$ junction diodes are fabricated to investigate spin-polarized electron transport. The injection of spin-polarized electrons in a semiconductor is achieved by driving a current from a ferromagnetic injector (Fe), into a bulk…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Peifeng Chen , Juergen Moser , Philipp Kotissek , Janusz Sadowski , Marcus Zenger , Dieter Weiss , Werner Wegscheider

Motivated by the possibility of combining spintronics with molecular structures, we investigate the conditions for the appearance of spin-polarization in low-dimensional tubular systems by contacting them to a magnetic substrate. We derive…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Mauro S. Ferreira , Stefano Sanvito

Spin injection from a half-metallic electrode in the presence of thermal spin disorder is analyzed using a combination of random matrix theory, spin-diffusion theory, and explicit simulations for the tight-binding s-d model. It is shown…

Materials Science · Physics 2012-12-05 K. D. Belashchenko , J. K. Glasbrenner , A. L. Wysocki

This paper presents the magnetic design of a 100MeV Separated Sector Medical Cyclotron (SSMC) as well as the optimization of the injection line magnets where will be used to transport the 14MeV proton beam from the Azimuthally Varying Field…

Accelerator Physics · Physics 2021-01-08 Ali Biganeh , Ali Ramazani Moghaddam

We study how a charged particle moving in a uniform magnetic field along its standard circular path (cyclotron motion) reacts to a short-duration, homogeneous, uniform electric field pulse injected in the plane perpendicular to the magnetic…

Classical Physics · Physics 2025-02-27 Sayan Kar