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相关论文: Thermal signature of helical molecule: Beyond near…

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We study theoretically the electronic structure of three-dimensional (3D) higher-order topological insulators in the presence of step edges. We numerically find that a 1D conducting state with a helical spin structure, which also has a…

介观与纳米尺度物理 · 物理学 2023-11-02 Akihiko Sekine , Manabu Ohtomo , Kenichi Kawaguchi , Mari Ohfuchi

Transport studies of a bent quantum Hall junction at integer filling factors show strongly insulating states at higher fields. In this paper we analyze the strongly insulating behavior as a function of temperature T and dc bias V, in order…

介观与纳米尺度物理 · 物理学 2008-07-15 L. Steinke , D. Schuh , M. Bichler , G. Abstreiter , M. Grayson

Controlling the direction and magnitude of both heat and electronic currents using rectifiers has significant implications for the advancement of molecular circuit design. In order to facilitate the implementation of new transport phenomena…

介观与纳米尺度物理 · 物理学 2019-08-02 Galen T. Craven , Dahai He , Abraham Nitzan

We study the thermoelectric response of a device containing a pair of helical edge states contacted at the same temperature $T$ and chemical potential $\mu$ and connected to an external reservoir, with different chemical potential and…

强关联电子 · 物理学 2018-11-28 P. Roura-Bas , Liliana. Arrachea , Eduardo Fradkin

Characterization of the structural and electron transport properties of single chiral molecules provides critical insights into the interplay between their electronic structure and electrochemical environments, providing broader…

化学物理 · 物理学 2024-09-26 Yueqing Shi , Liya Bi , Zihao Wang , Kangkai Liang , Ji-Kun Li , Xiao-Ye Wang , Wan-Lu Li , Shaowei Li

We examine the effects of thermal fluctuations on thin elastic filaments with non-circular cross-section and arbitrary spontaneous curvature and torsion. Analytical expressions for orientational correlation functions and for the persistence…

软凝聚态物质 · 物理学 2009-10-31 S. Panyukov , Y. Rabin

This study explores the transitional characteristics of blue-core helicon discharge, which to our knowledge was not particularly focused on before. Parameters are measured on recently built advanced linear plasma device, i.e. Multiple…

等离子体物理 · 物理学 2025-08-28 L. Chang , S. J. Zhang , J. T. Wu , Y. W. Zhang , C. Wang , Y. Peng , S. S. Gao , C. J. Sun , Q. Wang , C. F. Sang , S. C. Thakur , S. Isayama , S. J. You

We suggest that if a localized phase at nonzero temperature $T>0$ exists for strongly disordered and weakly interacting electrons, as recently argued, it will also occur when both disorder and interactions are strong and $T$ is very high.…

强关联电子 · 物理学 2009-11-11 Vadim Oganesyan , David A. Huse

In the dynamics of atoms and molecules at metal surfaces, electron-hole pair excitations can play a crucial role. In the case of hyperthermal hydrogen atom scattering, they lead to nonadiabatic energy loss and highly inelastic scattering.…

材料科学 · 物理学 2024-12-02 Connor L. Box , Nils Hertl , Wojciech G. Stark , Reinhard J. Maurer

The eigenstate thermalization hypothesis (ETH) has been highly influential in explaining thermodynamic behavior of closed quantum systems. As of yet, it is unclear whether and how the ETH applies to non-Hermitian systems. Here, we introduce…

We study a minimal extension of the worm-like chain to describe polypeptides having alpha-helical secondary structure. In this model presence/absence of secondary structure enters as a scalar variable that controls the local chain bending…

统计力学 · 物理学 2009-11-10 Buddhapriya Chakrabarti , Alex J. Levine

In the Large helical device, a change of energetic particle mode is observed as He concentration is varied in ion-ITB type experiments, having constant electron density and input heating power but with a clear increase of central ion…

Torsional oscillator (TO) is an experimental technique which is widely used to investigate superfluid responses in helium systems confined in porous materials or adsorbed on substrates. In these systems, heat capacity (HC) is also an…

其他凝聚态物理 · 物理学 2022-02-16 Jun Usami , Ryo Toda , Sachiko Nakamura , Tomohiro Matsui , Hiroshi Fukuyama

We study the effect of localized magnetic moments on the conductance of a helical edge. Interaction with a local moment is an effective backscattering mechanism for the edge electrons. We evaluate the resulting differential conductance as a…

介观与纳米尺度物理 · 物理学 2016-12-21 Jukka I. Väyrynen , Florian Geissler , Leonid I. Glazman

Under sufficiently high electric field gradients, electron behaviour within exactly perpendicular shocks is unstable to the so-called trajectory instability. We extend previous work paying special attention to shortiscale, high amplitude…

太阳与恒星天体物理 · 物理学 2013-04-18 V. See , R. F. Cameron , S. J. Schwartz

Based on micromagnetic simulations, we report on a novel helical magnetic structure in a soft magnetic film that is sandwiched between and exchange-coupled to two hard magnetic layers. Confined between antiparallel hard magnetic moments, a…

材料科学 · 物理学 2014-12-04 L. V. Dzemiantsova , G. Meier , R. Röhlsberger

We report the specific heat $c_N$ around the melting transition(s) of micrometer-sized superparamagnetic particles confined in two dimensions, calculated from fluctuations of positions and internal energy, and corresponding Monte Carlo…

软凝聚态物质 · 物理学 2015-06-18 Sven Deutschländer , Antonio M. Puertas , Georg Maret , Peter Keim

We explore the non-equilibrium dissipative dynamics of a system of identical charged particles trapped on a closed helix. The particles are subject to an external force accelerating them along the underlying structure. The effective…

软凝聚态物质 · 物理学 2017-02-17 A. V. Zampetaki , J. Stockhofe , P. Schmelcher

By means of extensive replica-exchange simulations of generic coarse-grained models for helical polymers, we systematically investigate the structural transitions into all possible helical phases for flexible and semiflexible elastic…

生物物理 · 物理学 2015-09-23 Matthew J. Williams , Michael Bachmann

We study collective excitations in a helical electron liquid on a surface of three-dimensional topological insulator. Electron in helical liquid obeys Dirac-like equation for massless particless and direction of its spin is strictly…

介观与纳米尺度物理 · 物理学 2012-07-10 D. K. Efimkin , Yu. E. Lozovik , A. A. Sokolik