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The weak antilocalization effect of InSb film in perpendicular as well as tilted magnetic field is investigated. It is found that the InSb film has quasi-two-dimensional feature and the Nyquist mechanism dominates decoherence. The two…

Materials Science · Physics 2015-05-20 R. Yang , K. H. Gao , Y. H. Zhang , P. P. Chen , G. Yu , L. M. Wei , T. Lin , N. Dai , J. H. Chu

The magnetic field dependence of electronic transport, magnetic, and elastic properties in single crystals of PbTe were investigated in high magnetic fields up to 55 T. The magnetoresistance, magnetization, ultrasonic attenuation, and sound…

We present theoretical calculations of the Land\'e g-factors of semiconductor nanostructures using a time-dependent empirical tight-binding method. The eigenenergies and eigenfunctions of the band edge states are calculated as a function of…

Condensed Matter · Physics 2007-05-23 Po-Chung Chen , K. Birgitta Whaley

We study the Zeeman splitting in lateral quantum dots that are defined in GaAs-AlGaAs het- erostructures by means of split gates. We demonstrate a non-linear dependence of the splitting on magnetic field and its substantial variations from…

Mesoscale and Nanoscale Physics · Physics 2018-02-14 V. P. Michal , T. Fujita , T. A. Baart , J. Danon , C. Reichl , W. Wegscheider , L. M. K. Vandersypen , Y. V. Nazarov

We investigate theoretically the effect of an external magnetic field on polarization patterns appearing in quantum microcavities due to the optical spin Hall effect (OSHE). We show that increase of the magnetic field perpendicular to the…

Mesoscale and Nanoscale Physics · Physics 2013-08-09 S. Morina , T. C. H. Liew , I. A. Shelykh

We demonstrated the cancellation of the external magnetic field by the nuclear field at one edge of the nuclear polarization bistability in single InAlAs quantum dots. The cancellation for the electron Zeeman splitting gives the precise…

Materials Science · Physics 2009-11-13 R. Kaji , S. Adachi , H. Sasakura , S. Muto

By deriving the quantum hydrodynamic equations for an isotropic single-band ferromagnet in an arbitrary magnetic field, we find that a massive mode recently predicted splits under the action of the field. The splitting is a peculiarity of…

Strongly Correlated Electrons · Physics 2024-08-15 Paulo F. Farinas , Kevin S. Bedell

We study Shubnikov-de Haas oscillations in a p-type WSe$_2$ monolayer under very high magnetic field. The oscillation pattern is complex due to a large spin and valley splitting, in the non-fully-resolved Landau level regime. Our…

Mesoscale and Nanoscale Physics · Physics 2020-10-07 Banan Kerdi , Mathieu Pierre , Robin Cours , Bénédicte Warot-Fonrose , Michel Goiran , Walter Escoffier

Resonant behavior involving spin-orbit entangled states occurs for spin transport along a narrow channel defined in a two-dimensional electron gas, including an apparent rapid relaxation of the spin polarization for special values of the…

Mesoscale and Nanoscale Physics · Physics 2014-04-02 D. H. Berman , M. Khodas , M. E. Flatté

Recent experiments on bismuth have uncovered remarkably rich magnetization structure at fields well beyond the regime in which all carriers are expected to reside in the lowest Landau level. Motivated by these findings, we start from a…

Strongly Correlated Electrons · Physics 2015-05-13 Jason Alicea , Leon Balents

We measure the spin splitting in a magnetic field $B$ of localized states in single-electron transistors using a new method, inelastic spin-flip cotunneling. Because it involves only internal excitations, this technique gives the most…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 A. Kogan , S. Amasha , D. Goldhaber-Gordon , G. Granger , M. A. Kastner , Hadas Shtrikman

We analyze the interference between tunneling paths that occurs for a spin system with both fourth-order and second-order transverse anisotropy. Using an instanton approach, we find that as the strength of the second-order transverse…

Mesoscale and Nanoscale Physics · Physics 2009-04-30 M. S. Foss-Feig , Jonathan R. Friedman

We present a theory of the electron structure and the Zeeman effect for the helical edge states emerging in two-dimensional topological insulators based on HgTe/HgCdTe quantum wells with strong natural interface inversion asymmetry. The…

Mesoscale and Nanoscale Physics · Physics 2016-02-25 M. V. Durnev , S. A. Tarasenko

We have measured the full angular dependence, as a function of the direction of magnetic field, for the Zeeman splitting of individual energy states in copper nanoparticles. The g-factors for spin splitting are highly anisotropic, with…

Mesoscale and Nanoscale Physics · Physics 2010-10-05 J. R. Petta , D. C. Ralph

We report spin-polarized tunneling density of states measurements of the proximity modulated superconductor-insulator transition in ultra thin Be-Al bilayers. The bilayer samples consisted of a Be film of varying thickness,…

Superconductivity · Physics 2021-05-26 F. N. Womack , P. W. Adams , G. Catelani

The determination of Lande's g-factor and the damping constant is central to extracting crucial information about the spin-spin and spin-orbit interactions in magnetically ordered systems. In insulating compounds based on 3d elements, the…

Materials Science · Physics 2025-02-04 Alapan Bera , Nirmalya Jana , Amit Agarwal , Soumik Mukhopadhyay

Among recent proposals for next-generation, non-charge-based logic is the notion that a single electron can be trapped and its spin can be manipulated through the application of gate potentials. In this paper, we present numerical…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Sanjay Prabhakar , James E. Raynolds

Experiments on high-quality GaAs (311)A two-dimensional holes at low temperatures reveal a remarkable dependence of the magnetoresistance, measured with an in-plane magnetic field ($B$), on the direction of $B$ relative to both the crystal…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 S. J. Papadakis , E. P. De Poortere , M. Shayegan , R. Winkler

We theoretically investigate the dephasing of a central spin-1 model. An interesting mechanism of spin decoherence is found with this model, namely {\em hyperfine mediated spectral diffusion}. This mechanism contains both the features of…

Mesoscale and Nanoscale Physics · Physics 2024-03-18 Rui Li

The valley Zeeman physics of excitons in monolayer transition metal dichalcogenides provides valuable insight into the spin and orbital degrees of freedom inherent to these materials. Being atomically-thin materials, these degrees of…

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