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相关论文: Hot-electron noise suppression in n-Si via the Hal…

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Near the superconducting phase transition, fluctuations significantly modify the electronic transport properties. Here we study the fluctuation corrections to the Hall conductivity in disordered films, extending previous derivations to a…

超导电性 · 物理学 2013-05-30 Karen Michaeli , Konstantin S. Tikhonov , Alexander M. Finkel'stein

We investigate the modification of the intrinsic carrier noise spectral density induced in low-doped semiconductor materials by an external correlated noise source added to the driving high-frequency periodic electric field. A Monte Carlo…

材料科学 · 物理学 2008-10-07 D. Persano Adorno , N. Pizzolato , B. Spagnolo

The excess Hall conductivity, resulting from thermal fluctuations of the superconducting order parameter, is calculated for a layered superconductor for an arbitrarily strong in-plane electric field and a perpendicular magnetic field in the…

超导电性 · 物理学 2009-11-10 I. Puica , W. Lang

Recent experiments in silicon MOSFETs indicate that the Hall coefficient is independent of magnetic field applied at a small angle with respect to the plane. Below a scattering between spin-up and spin-down carriers is considered to be the…

介观与纳米尺度物理 · 物理学 2009-11-07 Sergey A. Vitkalov

The magnetoelectronic coupling can be defined as cross-domain coupling between electronic and magnetic properties, where modulation in magnetic properties changes the electronic properties. In this letter, an explicit experimental evidence…

介观与纳米尺度物理 · 物理学 2024-02-27 Paul C. Lou , Ravindra G. Bhardwaj , Anand Katailiha , W. P. Beyermann , Sandeep Kumar

Materials subjected to a magnetic field exhibit the Hall effect, a phenomenon studied and understood in fine detail. Here we report a qualitative breach of this classical behavior in electron systems with high viscosity. The viscous fluid…

Taking advantage of the anomalous Hall effect, we electrically probe low-frequency magnetization fluctuations at room temperature in a thin ferromagnetic Pt/Co/AlO$_x$ layer stack with perpendicular magnetic anisotropy. We observe a strong…

介观与纳米尺度物理 · 物理学 2024-02-29 Nadine Nabben , Giacomo Sala , Ulrich Nowak , Matthias Krüger , Sebastian T. B. Goennenwein

We present a detailed study of intermittency in the velocity and magnetic field fluctuations of compressible Hall-magnetohydrodynamic turbulence with an external guide field. To solve the equations numerically, a reduced model valid when a…

太阳与恒星天体物理 · 物理学 2015-06-15 P. Rodriguez Imazio , L. N. Martin , P. Dmitruk , P. D. Mininni

In high-quality solid-state systems at low temperatures, the hydrodynamic or the ballistic regimes of heat and charge transport are realized in the electron and the phonon systems. In these regimes, the thermal and the electric conductance…

介观与纳米尺度物理 · 物理学 2019-09-18 P. S. Alekseev , M. A. Semina

In this paper, we develop a unified theory for describing Hall effect in various electronic systems based on a pure electron picture (without the hole concept). We argue that the Hall effect is the magnetic field induced symmetry breaking…

强关联电子 · 物理学 2009-01-26 X. Q. Huang

We study the Coulomb drag between two spatially separated electron systems in a strong magnetic field, one of which exhibits the quantum Hall effect. At a fixed temperature, the drag mimics the behavior of $\sigma_{xx}$ in the quantum Hall…

凝聚态物理 · 物理学 2009-10-22 Efrat Shimshoni , S. L. Sondhi

We present an experimental study of mesoscopic, two-dimensional electronic systems at high magnetic fields. Our samples, prepared from a low-mobility InGaAs/InAlAs wafer, exhibit reproducible, sample specific, resistance fluctuations.…

介观与纳米尺度物理 · 物理学 2009-11-07 E. Peled , D. Shahar , Y. Chen , D. L. Sivco , A. Y. Cho

We study the hitherto un-addressed phenomenon of Quantum Hall Effect with a magnetic and electric fields oscillating in time with resonant frequencies. This phenomenon realizes an example of heterodyne device with the magnetic field acting…

介观与纳米尺度物理 · 物理学 2016-11-16 Takashi Oka , Leda Bucciantini

We have observed the Hall effect in the field-induced accumulation layer on the surface of small-molecule organic semiconductor. The Hall mobility mu_H increases with decreasing temperature in both the intrinsic (high-temperature) and…

材料科学 · 物理学 2009-11-11 V. Podzorov , E. Menard , J. A. Rogers , M. E. Gershenson

We report on magneto-transport measurement in disordered graphene under pulsed magnetic field of up to 57T. For large electron or hole doping, the system displays the expected anomalous Integer Quantum Hall Effect (IQHE) specific to…

介观与纳米尺度物理 · 物理学 2015-05-18 J. M. Poumirol , W. Escoffier , A. Kumar , M. Goiran , B. Raquet , J. M. Broto

Studies about the constructive aspects of noise and fluctuations in different non-linear systems have shown that the addition of external noise to systems with an intrinsic noise may result in a less noisy response. Recently, the…

材料科学 · 物理学 2009-11-13 D. Persano Adorno , N. Pizzolato , B. Spagnolo

To understand the interplay between nematic fluctuation and superconductivity in iron-based superconductors, we performed a systematic study of the realistic two-orbital Hubbard model by using the constrained-path quantum Monte Carlo…

强关联电子 · 物理学 2018-11-14 Guangkun Liu , Shichao Fang , Xiaojun Zheng , Zhongbing Huang , Haiqing Lin

Using a two-dimensional square lattice Heisenberg model with a Rashba-type Dzyaloshinskii-Moriya interaction, we demonstrate that chiral spin fluctuations can give rise to a thermal Hall effect in the absence of any static spin texture or…

介观与纳米尺度物理 · 物理学 2021-06-23 Caitlin Carnahan , Yinhan Zhang , Di Xiao

Hall effect in SN and SNS junctions is considered. It is shown that at small temperature the Hall voltage is significantly suppressed as compared to its normal metal value. The time dependence of the Hall voltage in SNS junctions has a form…

介观与纳米尺度物理 · 物理学 2016-08-31 F. Zhou , B. Spivak

We study a neutron diffraction by A phase of MnSi using a dynamical theory of diffraction and three wave approximation. We show that the neutron diffraction is asymmetrical with respect to an incident plane. The asymmetry depends on a sign…

强关联电子 · 物理学 2015-06-19 O. G. Udalov , A. A. Fraerman
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