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Related papers: Weak Localization in Few-Layer Black Phosphorus

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We present a theory for quasiparticle heat transport through superconducting weak links. The thermal conductance depends on the phase difference ($\phi$) of the superconducting leads. Branch conversion processes, low-energy Andreev bound…

Superconductivity · Physics 2007-05-23 Erhai Zhao , Tomas Lofwander , J. A. Sauls

The temperature dependence of the spin relaxation time in multilayer graphene (MLG) spin valve devices was measured using a non-local magnetoresistance (NLMR) measurement. A weak localization (WL) was observed from magnetoresistance (MR)…

Mesoscale and Nanoscale Physics · Physics 2013-04-01 Takehiro Yamaguchi , Rai Moriya , Satoru Masubuchi , Kazuyuki Iguchi , Tomoki Machida

We study the transport properties of interacting electrons in a disordered quantum wire within the framework of the Luttinger liquid model. The conductivity at finite temperature is nonzero only because of inelastic electron-electron…

Disordered Systems and Neural Networks · Physics 2009-11-10 I. V. Gornyi , A. D. Mirlin , D. G. Polyakov

We report on magnetoresistance, Hall and magnetization measurements of Fe2VAl1-xSix Heusler compounds for x= 0.005, 0.015, 0.02. There is a systematic change in the temperature coefficient of resistance (TCR) from negative to positive as…

Materials Science · Physics 2015-10-30 E. P. Amaladass , A. T. Satya , Shilpam Sharma , K. Vinod , V. Srinivas , C. S. Sundar , A. Bharathi

Weak localization leads to the same correction to both the conductivity and the electron-phonon coupling constant $\lambda$ (and $\lambda_{tr}$). Consequently the temperature dependence of the (thermal) electrical resistivity is decreasing…

Disordered Systems and Neural Networks · Physics 2007-05-23 Mi-Ae Park , Kerim Savran , Yong-Jihn Kim

Quantum corrections to the conductivity allow experimental assessment of electronic coherence in metals. We consider whether independent measurements of different corrections are quantitatively consistent, particularly in systems with…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. Trionfi , S. Lee , D. Natelson

The electronic properties of monolayer phosphorene are exotic due to its puckered structure and large intrinsic direct band gap. We derive and discuss its band structure in the presence of a perpendicular magnetic field. Further, we…

Mesoscale and Nanoscale Physics · Physics 2015-07-23 M. Tahir , P. Vasilopoulos , F. M. Peeters

A universal mechanism for strong magnetic-field effects of nonmagnetic organic semiconductors is presented. A weak magnetic field (less than hundreds mT) can substantially change the charge carrier hopping coefficient between two…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 X. R. Wang , S. J. Xie

The one-parameter scaling theory of localization predicts that all states in a disordered two-dimensional system with broken time reversal symmetry are localized even in the presence of strong spin-orbit coupling. While at constant strong…

Disordered Systems and Neural Networks · Physics 2017-06-27 Ying Su , C. Wang , Y. Avishai , Yigal Meir , X. R. Wang

We non-perturbatively analyze the effect of electron-electron interactions on weak localization (WL) in relatively short metallic conductors with a tunnel barrier. We demonstrate that the main effect of interactions is electron dephasing…

Mesoscale and Nanoscale Physics · Physics 2008-07-01 D. S. Golubev , A. D. Zaikin

The thermal transport coefficients in a weakly magnetized quark-gluon plasma have been investigated within the ambit of a quasiparticle model to encode the effects of the realistic equation of state. The presence of a weak magnetic field…

Nuclear Theory · Physics 2020-07-27 Manu Kurian

We report magnetoresistance measurements over an extensive temperature range (0.1 K $\leq T \leq$ 100 K) in a disordered ferromagnetic semiconductor (\gma). The study focuses on a series of metallic \gma~ epilayers that lie in the vicinity…

Materials Science · Physics 2010-07-14 P. Mitra , N. Kumar , N. Samarth

The temperature dependence of the complex optical properties of the layered phosphide material EuCd$_2$P$_2$ have been measured over a wide frequency range above and below $T_{\rm N} \simeq 11.5$ K for light polarized in the $a-b$ planes.…

Strongly Correlated Electrons · Physics 2023-03-23 C. C. Homes , Z. -C. Wang , K. Fruhling , F. Tafti

Electronic transport in highly doped but still insulating silicon at low temperatures is dominated by hopping between localized states; it serves as a model system of a disordered solid for which the electronic interaction can be…

Strongly Correlated Electrons · Physics 2007-05-23 Marco Hering , Marc Scheffler , Martin Dressel , Hilbert v. Lohneysen

Artificial confinement of electrons by tailoring the layer thickness has turned out to be a powerful tool to harness control over competing phases in nano-layers of complex oxides. We investigate the effect of dimensionality on transport…

Strongly Correlated Electrons · Physics 2021-03-11 Subhadip Jana , Shwetha G. Bhat , B. C. Behera , L. Patra , P. S. Anil Kumar , B. R. K. Nanda , D. Samal

The depth distribution of the transport properties as well as the temperature dependence of the low field magneto-conductance for several c-axis oriented GaN nanowall network samples grown with different average wall-widths are…

Mesoscale and Nanoscale Physics · Physics 2014-11-04 H. P. Bhasker , Varun Thakur , S. M. Shivaprasad , S. Dhar

We report the measurements and analysis of weak antilocalization (WAL) in Pb1-xSnxSe topological quantum wells in a new regime where the elastic scattering length is larger than the magnetic length. We achieve this regime through the…

Mesoscale and Nanoscale Physics · Physics 2020-11-26 Jiashu Wang , X. Liu , C. Bunker , L. Riney , B. Qing , S. K. Bac , M. Zhukovskyi , T. Orlova , S. Rouvimov , M. Dobrowolska , J. K. Furdyna , B. A. Assaf

We present polarization-resolved transient transmission measurements on multi-layer black phosphorus. Background free two-color pump-probe spectroscopy measurements are carried out on mechanically exfoliated black phosphorus flakes that…

Materials Science · Physics 2015-08-25 Ryan J. Suess , Mohammad M. Jadidi , Thomas E. Murphy , Martin Mittendorff

The single-layer black phosphorus is characteristic for its puckered structure, which has leaded to highly anisotropy in its optical, electronic, and mechanical properties. We report, using the non-equilibrium Green's function approach and…

Materials Science · Physics 2015-02-13 Jin-Wu Jiang

We demonstrate that the weak antilocalization effect can serve as a convenient method for detecting decoupled surface transport in topological insulator thin films. In the regime where a bulk Fermi surface coexists with the surface states,…

Mesoscale and Nanoscale Physics · Physics 2011-06-16 J. Chen , X. Y. He , K. H. Wu , Z. Q. Ji , L. Lu , J. R. Shi , J. H. Smet , Y. Q. Li