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We present an electron spin resonance (ESR) approach to characterize shallow electron trapping in band-tail states at Si/SiO2 interfaces in metal-oxide-semiconductor (MOS) devices and demonstrate it on two MOS devices fabricated at…

Revealing the spin excitations of complex quantum magnets is key to developing a minimal model that explains the underlying magnetic correlations in the ground state. We investigate the low-energy magnons in $\alpha$-RuCl$_3$ by combining…

Strongly Correlated Electrons · Physics 2019-09-04 Ilkem Ozge Ozel , Carina A. Belvin , Edoardo Baldini , Itamar Kimchi , Seunghwan Do , Kwang-Yong Choi , Nuh Gedik

Using low-energy muons, we map the charge carrier concentration as a function of depth and electric field across the \SiOSi interface up to a depth of \SI{100}{\nano\meter} in Si-based MOS capacitors. The results show that the formation of…

Other Condensed Matter · Physics 2024-05-29 Maria M. Martins , Piyush Kumar , Marianne E. Bathen , Zaher Salman , Ulrike Grossner , Thomas Prokscha

We have experimentally and theoretically investigated the electron spin transport and spin distribution at room temperature in a Si two-dimensional (2D) inversion channel of back-gate-type spin metal-oxide-semiconductor field-effect…

Applied Physics · Physics 2020-07-22 Shoichi Sato , Masaaki Tanaka , Ryosho Nakane

We examine the anomalous inverse spin switch behavior in La$_{0.7}$Ca$_{0.3}$MnO$_3$ (LCMO)/YBa$_2$Cu$_3$O$_{7-\delta}$ (YBCO)/LCMO trilayers by combined transport studies and polarized neutron reflectometry. Measuring magnetization…

Mesoscale and Nanoscale Physics · Physics 2012-06-29 Yaohua Liu , C. Visani , N. M. Nemes , M. R. Fitzsimmons , L. Y. Zhu , J. Tornos , M. Zhernenkov , A. Hoffmann , C. Leon , J. Santamaria , S. G. E. te Velthuis

We present a quantitative theory for simulating the electrically detected magnetic resonance (EDMR) of silicon vacancy-related spin pairs in silicon carbide using steady-state Lindblad master equations. In our theory, we consider V1a and…

We present the results of electrically-detected magnetic resonance (EDMR) experiments on silicon with ion-implanted phosphorus nanostructures, performed at 5 K. The devices consist of high-dose implanted metallic leads with a square gap,…

Materials Science · Physics 2007-05-23 D. R. McCamey , H. Huebl , M. S. Brandt , W. D. Hutchison , J. C. McCallum , R. G. Clark , A. R. Hamilton

The Rashba-Edelstein effect stems from the interaction between the electron's spin and its momentum induced by spin-orbit interaction at an interface or a surface. It was shown that the inverse Rashba-Edelstein effect can be used to convert…

Mesoscale and Nanoscale Physics · Physics 2016-06-27 M. B. Jungfleisch , W. Zhang , J. Sklenar , W. Jiang , J. E. Pearson , J. B. Ketterson , A. Hoffmann

A large spin-dependent and electric field-tunable magnetoresistance of a two-dimensional electron system (2DES) is a key ingredient for the realization of many novel concepts for spin-based electronic devices. The low magnetoresistance…

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…

The interface with spin defects in hexagonal boron nitride has recently become a promising platform and has shown great potential in a wide range of quantum technologies. Varieties of spin properties of $V_B^-$ defects in hexagonal boron…

Searches for pseudo-magnetic spin couplings require implementation of techniques capable of sensitive detection of such interactions. While Spin-Exchange Relaxation Free (SERF) magnetometry is one of the most powerful approaches enabling…

Instrumentation and Detectors · Physics 2022-01-14 Mikhail Padniuk , Marek Kopciuch , Riccardo Cipolletti , Arne Wickenbrock , Dmitry Budker , Szymon Pustelny

We show that in the presence of ferromagnetic electronic reservoirs and spin-dependent tunnel couplings, molecular vibrations in nonmagnetic single molecular transistors induce an effective intramolecular exchange magnetic field. It…

Mesoscale and Nanoscale Physics · Physics 2015-07-29 S. Weiss , J. Brüggemann , M. Thorwart

Colossal magnetoresistance (CMR) is commonly observed in magnetic semiconductors when an external magnetic field is applied, usually accompanied by anomalous resistivity peaks or humps which were previously considered as evidence of a…

Materials Science · Physics 2025-03-26 Zhihao Liu , Zhong Fang , Hongming Weng , Quansheng Wu

We demonstrate that the magnetization in magnetic semiconductors exhibits nutational motion when subjected to an external magnetic field. This behavior originates from the splitting of the conduction-electron band which induces anisotropic,…

Materials Science · Physics 2025-01-09 H. Kachkachi

We review some experimental and theoretical results on the metal-to-insulator transition (MIT) observed at zero magnetic field (B=0) in several two-dimensional electron systems (2DES). Scaling of the conductance and magnetic field…

Strongly Correlated Electrons · Physics 2019-08-17 S Washburn , D Popovic , KP Li , AB Fowler

A DFT-based method is presented which allows the computation of all-electron NMR shifts of metallic compounds with periodic boundary conditions. NMR shifts in metals measure two competing physical phenomena. Electrons interact with the…

Materials Science · Physics 2009-11-13 Mayeul d'Avezac , Nicola Marzari , Francesco Mauri

Dynamical information on spin degrees of freedom of proteins or solids can be obtained by Nuclear Magnetic Resonance (NMR) and Electron Spin Resonance (ESR). A technique with similar versatility for charge degrees of freedom and their…

Superconductivity · Physics 2013-02-21 B. Mansart , J. Lorenzana , A. Mann , A. Odeh , M. Scarongella , M. Chergui , F. Carbone

Signatures of Majorana zero modes (MZMs), which are the building blocks for fault-tolerant topological quantum computing, have been observed in semiconductor nanowires (NW) with strong spin-orbital-interaction (SOI), such as InSb and InAs…

Mesoscale and Nanoscale Physics · Physics 2020-05-15 Zedong Yang , Brett Heischmidt , Sasa Gazibegovic , Ghada Badawy , Diana Car , Paul A. Crowell , Erik P. A. M. Bakkers , Vlad S. Pribiag

Magnetic field effects (MFE) in certain chemical reactions have been well established in the last five decades and are attributed to the evolution of transient radical-pairs whose spin dynamics are determined by local and external magnetic…

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