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相关论文: Large thermal Hall coefficient in bismuth

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The quest for non-Abelian quasiparticles has inspired decades of experimental and theoretical efforts, where the scarcity of direct probes poses a key challenge. Among their clearest signatures is a thermal Hall conductance with quantized…

介观与纳米尺度物理 · 物理学 2020-12-07 I. C. Fulga , Yuval Oreg , Alexander D. Mirlin , Ady Stern , David F. Mross

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 discuss the contribution of magnetic Skyrmions to the Hall viscosity and propose a simple way to identify it in experiments. The topological Skyrmion charge density has a distinct signature in the electric Hall conductivity that is…

强关联电子 · 物理学 2017-12-22 Bom Soo Kim

We report resistivity and the Hall effect measurements in the normal and superconducting states of MgB2 single crystal. The resistivity has been found to be anisotropic with slightly temperature dependent resistivity ratio of about 3.5. The…

超导电性 · 物理学 2009-11-07 Yu. Eltsev , K. Nakao , S. Lee , T. Masui , N. Chikumoto , S. Tajima , N. Koshizuka , M. Murakami

We have conducted an experimental study of the linear transport properties of the magnetic-field induced insulating phase which terminates the quantum Hall (QH) series in two dimensional electron systems. We found that a direct and simple…

凝聚态物理 · 物理学 2009-10-28 D. Shahar , D. C. Tsui , M. Shayegan , J. E. Cunningham , E. Shimshoni , S. L. Sondhi

Investigation of Seebeck coefficient in ultra-wide bandgap materials presents a challenge in measurement, nevertheless, it is essential for understanding fundamental transport mechanisms involved in electrical and thermal conduction.…

材料科学 · 物理学 2021-02-24 Ashish Kumar , Saurabh Singh , Bhera Ram Tak , Ashutosh Patel , K. Asokan , D. Kanjilal

Thermal transport acts as a powerful tool for studying the excitations and physical properties of insulators, where a charge gap suppresses electronic conduction. Recently, the thermal Hall effect has been observed across various materials,…

介观与纳米尺度物理 · 物理学 2025-07-31 Taekoo Oh

We present a calculation of the quasiparticle contribution to the longitudinal thermal conductivities as well as transverse (Hall) thermal conductivity of an extreme type-II superconductor in a high magnetic field and at low temperatures.…

超导电性 · 物理学 2009-11-07 S. Dukan , T. P. Powell , Z. Tesanovic

This paper reviews recent developments in the theory of the quantum Hall effect (QHE) in the magnetic-field-induced spin-density-wave (FISDW) state of the quasi-one-dimensional organic conductors (TMTSF)$_2$X. The origin and the basic…

凝聚态物理 · 物理学 2009-10-28 Victor M. Yakovenko , Hsi-Sheng Goan

Following the recent discovery of large magnetoresistance at room temperature in polyfluorence sandwich devices, we have performed a comprehensive magnetoresistance study on a set of organic semiconductor sandwich devices made from…

A topological insulator (TI) interfaced with a magnetic insulator (MI) may host an anomalous Hall effect (AHE), a quantum AHE, and a topological Hall effect (THE). Recent studies, however, suggest that coexisting magnetic phases in TI/MI…

Measurements of the Hall effect and the resistivity on precisely-patterned YBCO thin films in magnetic fields B from 0.5 to 6 T oriented parallel to the sample crystallographic c axis reveal a sign reversal of the Hall coefficient for B <=…

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

We discuss thermal transport of two-dimensional topological superconductors (TSCs) with broken time reversal symmetry, which are described by Bogoliubov-de Gennes (BdG) Hamiltonians. From the calculations of bulk quantities only, without…

介观与纳米尺度物理 · 物理学 2013-01-24 Hiroaki Sumiyoshi , Satoshi Fujimoto

We investigate the effect of electron-electron interaction on the temperature dependence of the Hall coefficient of 2D electron gas at arbitrary relation between the temperature $T$ and the elastic mean-free time $\tau$. At small…

无序系统与神经网络 · 物理学 2009-11-07 Gabor Zala , B. N. Narozhny , I. L. Aleiner

In the quantum anomalous Hall effect, quantized Hall resistance and vanishing longitudinal resistivity are predicted to result from the presence of dissipationless, chiral edge states and an insulating 2D bulk, without requiring an external…

介观与纳米尺度物理 · 物理学 2018-09-12 E. J. Fox , I. T. Rosen , Yanfei Yang , George R. Jones , Randolph E. Elmquist , Xufeng Kou , Lei Pan , Kang L. Wang , D. Goldhaber-Gordon

The high-magnetic-field thermoelectric effect in nodal-line semimetals with straight nodal lines was investigated. Three-dimensional (3D) Dirac/Weyl semimetals exhibit constant thermoelectric Hall conductivity at the high-magnetic-field…

介观与纳米尺度物理 · 物理学 2022-05-03 Toshihito Osada , Tomotaka Ochi , Toshihiro Taen

The observation of a misalignment between the applied heat flux and the measured temperature gradient in insulating solids induced by magnetic field has become a subject of experimental investigation, theoretical speculation, and unsettled…

材料科学 · 物理学 2026-04-06 Yu Ling , Benoît Fauqué , Kamran Behnia

We present resistivity and thermal conductivity measurements on bulk samples, prepared either by a standard method or by a one-step technique. The latter samples, due to their high density and purity, show residual resistivity values as low…

超导电性 · 物理学 2009-11-07 M. Putti , V. Braccini , E. Galleani , F. Napoli , I. Pallecchi , A. S. Siri , P. Manfrinetti , A. Palenzona

By designing a multi-channel millimeter Hall measurement configuration, we realize the carrier-density (locally) controllable measurement on the transport property in 2H MoS$_{2}$. We observe a linearly increased Hall conductivity and…

介观与纳米尺度物理 · 物理学 2024-02-21 Chen-Huan Wu , Yida Li

We report the temperature($T$) and perpendicular magnetic field($B$) dependence of the Hall resistivity $\rho_{xy}(B)$ of dilute metallic two-dimensional(2D) holes in GaAs over a broad range of temperature(0.02-1.25K). The low $B$ Hall…

强关联电子 · 物理学 2007-05-23 Xuan P. A. Gao , G. S. Boebinger , A. P. Mills , A. P. Ramirez , L. N. Pfeiffer , K. W. West