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Shubnikov de Haas resistance oscillations of highly mobile two dimensional helical electrons propagating on a conducting surface of strained HgTe 3D topological insulator are studied in magnetic fields B tilted by angle $\theta$ from the…

Mesoscale and Nanoscale Physics · Physics 2021-05-27 S. Abedi , S. A. Vitkalov , N. N. Mikhailov , Z. D. Kvon

We theoretically study angle-resolved magnetoresistance under rotated magnetic field in the normal state of a spin-triplet superconductor UTe$_2$. The Wannier model derived from a GGA+$U$ calculation shows quasi-two-dimensional Fermi…

Superconductivity · Physics 2026-03-19 Jun Ishizuka , Youichi Yanase

We present a heuristic, semiphenomenological model of the anomalous temperature (T) dependence of resistivity $\rho_{xx}$ recently observed experimentally in the quasi-one-dimensional (Q1D) organic conductors of the (TMTSF)2X family in…

Strongly Correlated Electrons · Physics 2007-05-23 Victor M. Yakovenko , Anatoley T. Zheleznyak

We have performed electrical transport measurements at low temperatures and high magnetic fields in Na$_{0.5}$CoO$_2$ single crystals. Shubnikov de Haas oscillations were observed for two frequencies F_1 150 and F_2 40 T corresponding…

Strongly Correlated Electrons · Physics 2007-05-23 L. Balicas , M. Abdel-Jawad , N. E. Hussey , F. C. Chou , P. A. Lee

We present a heuristic, semiphenomenological model of the anomalous temperature (T) dependence of resistivity Rxx recently observed experimentally in the quasi-one-dimensional (Q1D) organic conductors of the (TMTSF)2X family in moderately…

Condensed Matter · Physics 2009-10-31 Anatoley T. Zheleznyak , Victor M. Yakovenko

Measurements and calculations of magnetotransport in the molecular organic conductor (DMET)2I3 detect and simulate all known angular magnetoresistance oscillation (AMRO) phenomena for quasi-one dimensional (Q1D) systems. Employing the true…

Strongly Correlated Electrons · Physics 2015-05-19 Pashupati Dhakal , Harukazu Yoshino , Jeong Il Oh , Koichi Kikuchi , Michael J. Naughton

Magnetooptical measurements of several quasi-two-dimensional (q2D) organic conductors, which have simple Fermi surface structure, have been performed by using a cavity perturbation technique. Despite of the simple Fermi surface structure,…

Strongly Correlated Electrons · Physics 2009-11-07 Y. Oshima , H. Ohta , K. Koyama , M. Motokawa , H. M. Yamamoto , R. Kato , M. Tamura , Y. Nishio , K. Kajita

We establish theoretically that in nonmagnetic semiconducting bilayer or multilayer thin film systems rolled up into compact quasi-one-dimensional nanoarchitectures, the ballistic magnetoresistance is very anisotropic: conductances depend…

Mesoscale and Nanoscale Physics · Physics 2014-12-10 Ching-Hao Chang , Jeroen van den Brink , Carmine Ortix

We propose a mechanism of nodeless d-wave superconductivity in a quasi-one-dimensional organic superconductor under anion order. It is shown that split of the Fermi surfaces due to the anion order eliminates the line nodes of a d-wave gap…

Superconductivity · Physics 2009-10-31 Hiroshi Shimahara

The magnetic field-induced changes in the conductivity of metals are the subject of intense interest, both for revealing new phenomena and as a valuable tool for determining their Fermi surface. Here, we report a hitherto unobserved…

Quantum corrections to charge transport can give rise to an oscillatory magnetoconductance, typically observed in mesoscopic samples with a length shorter than or comparable with the phase coherence length. Here, we report the observation…

Mesoscale and Nanoscale Physics · Physics 2017-03-01 C. W. Rischau , S. Wiedmann , G. Seyfarth , D. LeBoeuf , K. Behnia , B. Fauqué

Full quantum-mechanical description of electrons moving in 3D structures with unidirectional periodic modulation subject to tilted magnetic fields requires an extensive numerical calculation. To understand magneto-oscillations in such…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 N. A. Goncharuk , L. Smrcka , J. Kucera , K. Vyborny

We consider the millimeter-wave electrodynamics specific to quasi-two-dimensional conductors and superconductors based on the organic donor molecule BEDT-TTF. Using realistic physical parameters, we examine the current polarizations that…

Strongly Correlated Electrons · Physics 2009-10-31 Stephen Hill

In the present paper we propose a mechanism of the structural instability with a periodic charge ordering in two-dimensional isotropic conductors with a closed Fermi surface which completely excludes the conventional nesting mechanism. We…

Strongly Correlated Electrons · Physics 2018-06-29 Anatoly M. Kadigrobov , Aleksa Bjeliš , Danko Radić

Response functions for spin-density-wave (SDW) and d-wave singlet superconductivity ($d$SC) in quasi-one-dimensional (Q1D) electron systems are calculated by a renormalization group technique. It is shown that the response functions for…

Strongly Correlated Electrons · Physics 2008-04-03 Yuki Fuseya , Masao Ogata

Low density two-dimensional electron gases (2DEGs) with spin-orbit coupling are highly sensitive to an in-plane magnetic field, which impacts their Fermi surfaces and transport properties. Such 2DEGs, formed at transition metal oxide…

Mesoscale and Nanoscale Physics · Physics 2019-06-05 Nazim Boudjada , Ilia Khait , Arun Paramekanti

We demonstrate that magnetoresistance of creeping charge-density waves in the quasi-one dimensional conductor {\it o}-TaS$_3$ changes its character from a negative parabolic at $T\gtrsim 10$ K where it obeys $1/T^2$ law to a weakly…

Materials Science · Physics 2023-10-17 I. A. Cohn , S. V. Zaitsev-Zotov

The electrical resistivity for a current moving perpendicular to layers (chains) in quasi-2D (quasi-1D) metals under an applied magnetic field of varying orientation is studied using Boltzmann transport theory. We consider the simplest…

Statistical Mechanics · Physics 2009-11-13 M. F. Smith , Ross McKenzie

We present a study of angle-resolved quantum oscillations of electric and thermoelectric transport coefficients in semi-metallic WTe$_{2}$, which has the particularity of displaying a large B$^{2}$ magneto-resistance. The Fermi surface…

Materials Science · Physics 2015-05-06 Zengwei Zhu , Xiao Lin , Juan Liu , Benoit Fauque , Qian Tao , Chongli Yang , Youguo Shi , Kamran Behnia

Commensurability oscillations in the magnetoresistivity of a two-dimensional electron gas in a two-dimensional lateral superlattice are studied in the framework of quasiclassical transport theory. It is assumed that the impurity scattering…

Disordered Systems and Neural Networks · Physics 2009-11-07 A. D. Mirlin , E. Tsitsishvili , P. Woelfle