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Related papers: Magnetic oscillations in silicene

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We study a small spin-degenerate quantum dot with even number of electrons, weakly connected by point contacts to the metallic electrodes, and subject to an external magnetic field. If the Zeeman energy B is equal to the single-particle…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 M. Pustilnik , Y. Avishai , K. Kikoin

In metals, electrons in a magnetic field undergo cyclotron motion, leading to oscillations in physical properties called quantum oscillations. This phenomenon has never been seen in a robust insulator because there are no mobile electrons.…

In this paper, the Schr{\"o}dinger equation in a magnetic field is utilized to study the effect of the magnetic field on $B$ mesons. The mass spetrum of $B$ mesons are numerically calculated for different magnetic field strengths by solving…

General Physics · Physics 2025-03-12 Bing-Rui Ma , Hao Chen , Cheng-Qun Pang

A monolayer of a transition metal dichalcogenide (TMD) such as WSe$_2$ is a two-dimensional (2D) direct band-gap valley-semiconductor having an effective Honeycomb lattice structure with broken inversion symmetry. The inequivalent valleys…

Mesoscale and Nanoscale Physics · Physics 2015-06-22 Ajit Srivastava , Meinrad Sidler , Adrien V. Allain , Dominik S. Lembke , Andras Kis , Atac Imamoglu

We report on the effect of a weak magnetic field applied on an iodine cell used to frequency stabilize a laser. A 1.5$~\mu$m laser is frequency tripled in order to excite the molecular transitions at 0.51$~\mu$m and frequency locked on a…

We have found out that the band inversion in a silicene quantum dot (QD), in perpendicular magnetic $B$ and electric $\Delta_z$ fields, drastically depends on the strength of the magnetic field. We study the energy spectrum of the silicene…

Mesoscale and Nanoscale Physics · Physics 2017-03-23 E. Romera , M. Calixto

We extend spin-lattice relaxation theory to incorporate the use of pulsed magnetic fields for probing the hysteresis effects and magnetization steps and plateaus exhibited, at low temperatures, by the dynamical magnetization of magnetic…

Mesoscale and Nanoscale Physics · Physics 2008-03-28 Ioannis Rousochatzakis , Marshall Luban

The magnetic properties of ThCr_2Si_2-type single crystals ACo_2Se_2 (A = K, Rb and Cs) have been investigated by magnetic susceptibility and isothermal magnetization measurements at various temperatures. The ferromagnetic phase transition…

Superconductivity · Physics 2013-08-15 Jinhu Yang , Bin Chen , Hangdong Wang , Qianhui Mao , Masaki Imai , Kazuyoshi Yoshimura , Minghu Fang

The Kondo lattice model of spin-1/2 local moments coupled to the conduction electrons at half-filling is studied for its orbital response to magnetic field on bipartite lattices. Through an effective charge dynamics, in a canonical…

Strongly Correlated Electrons · Physics 2017-08-17 Panch Ram , Brijesh Kumar

The magnetoresistance is the magnetic field induced change of electrical resistivity of a material. Recent studies have revealed extremely large magnetoresistance in several non-magnetic semimetals, which has been explained on the basis of…

Materials Science · Physics 2018-05-30 M. Matin , R. Mondal , N. Barman , A. Thamizhavel , S. K. Dhar

Classical and quantum theory of spin waves in the vortex state of a mesoscopic sub-micron magnetic disk has been developed with account of the finite mass density of the vortex. Oscillations of the vortex core resemble oscillations of a…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 Ricardo Zarzuela , Eugene Chudnovsky , Javier Tejada

In this work, we present a comprehensive study of the low energy optical magnetic response of the skyrmionic Mott insulator Cu$_2$OSeO$_3$ via high resolution time-domain THz spectroscopy. In zero field, a new magnetic excitation not…

Strongly Correlated Electrons · Physics 2017-07-03 N. J. Laurita , G. G. Marcus , B. A. Trump , J. Kindervater , M. B. Stone , T. M. McQueen , C. L. Broholm , N. P. Armitage

Fe$^{3+}$ $S = 5/2$ ions form saw-tooth like chains along the $a$ axis of the oxo-selenite Fe$_2$O(SeO$_3$)$_2$ and an onset of long-range magnetic order is observed for temperatures below $T_C = 105$ K. This order leads to distinct…

Using polarization-resolved photoluminescence spectroscopy, we investigate valley degeneracy breaking by out-of-plane magnetic field in back-gated monolayer MoSe$_2$ devices. We observe a linear splitting of $-0.22…

Mesoscale and Nanoscale Physics · Physics 2015-02-03 David MacNeill , Colin Heikes , Kin Fai Mak , Zachary Anderson , Andor Kormányos , Viktor Zólyomi , Jiwoong Park , Daniel C. Ralph

One striking property of the Landau level spectrum of a Weyl semimetal (WSM) is the existence of a chiral Landau level, in which the electrons propagate unidirectionally along the magnetic field. This linearly dispersive level influences…

Mesoscale and Nanoscale Physics · Physics 2021-01-04 Jean-Michel Parent , René Côté , Ion Garate

Zeeman observations provide the only direct probe of line-of-sight (LOS) magnetic fields in the interstellar medium. To evaluate their accuracy and limitations, we generate synthetic HI Zeeman spectra from magnetohydrodynamic simulations…

Astrophysics of Galaxies · Physics 2026-02-24 Duo Xu , Peter Martin , Stella Offner , Robert Gutermuth , Michael Grudic , Joshua Speagle

The effect of a Zeeman magnetic field coupled to the spin of the electrons on the conducting properties of the disordered Hubbard model is studied. Using the Determinant Quantum Monte Carlo method, the temperature- and magnetic-field-…

Strongly Correlated Electrons · Physics 2009-11-10 P. J. H. Denteneer , R. T. Scalettar

Friedel oscillations (FO) of electron density caused by a delta-like neutral impurity in two-dimensional (2D) systems in a magnetic field are calculated. Three 2D cases are considered: free electron gas, monolayer graphene and group-VI…

Mesoscale and Nanoscale Physics · Physics 2018-05-16 Tomasz M. Rusin , Wlodek Zawadzki

This paper presents a theoretical description of both the valley Zeeman effect (g-factors) and Landau levels in two-dimensional H-phase transition metal dichalcogenides (TMDs) using the Luttinger-Kohn approximation with spin-orbit coupling.…

Materials Science · Physics 2020-08-26 Fengyuan Xuan , Su Ying Quek

This paper describes a very general approach to the calculation of the Zeeman splitting effect produced by an external magnetic field on the rotational levels of diatomic molecules. The method is valid for arbitrary values of the total…

Astrophysics · Physics 2009-11-13 A. Asensio Ramos , J. Trujillo Bueno