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相关论文: Mobility and its temperature dependence in LSCO: v…

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The in-plane and out-of-plane superconducting stiffness of LSCO rings appear to vanish at different transition temperatures, which contradicts thermodynamical expectation. In addition, we observe a surprisingly strong dependence of the…

超导电性 · 物理学 2024-06-05 Abhisek Samanta , Itay Mangel , Amit Keren , Daniel P. Arovas , Assa Auerbach

We report the temperature dependence of transport and magnetic properties of La$_{1-x}$Ca$_x$VO$_3$ for x = 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5. The system exhibits an insulator-to-metal transition concomitant with an…

强关联电子 · 物理学 2008-02-03 K. Maiti , N. Y. Vasanthacharya , D. D. Sarma

We have carried out torsional oscillator experiments on solid $^4$He at temperatures between 1.3K and 1.9K. We discovered phenomena similar to those observed at temperatures below 0.2K, which currently are under debate regarding their…

其他凝聚态物理 · 物理学 2010-07-21 Anna Eyal , Oshri Pelleg , Lior Embon , Emil Polturak

Transport properties of high transition temperature (high Tc) cuprate superconductors are investigated within a two-band model. The doping dependent Hall coefficients of La_{2-x}Sr_xCuO_4 (LSCO) and Nd_{2-x}Ce_xCuO_4 (NCCO) are explained by…

超导电性 · 物理学 2007-05-23 Nie Luo

We have investigated the charge carrier transport in organic molecular semiconductors. It has been found that mobility is a function of electric field and temperature due to hopping conduction. Several theoretical models for charge…

材料科学 · 物理学 2007-05-23 Ajit Kumar Mahapatro , Subhasis Ghosh

We have studied the electronic properties of the 2D electron liquid present at the LaAlO$_3$/SrTiO$_3$ interface in series of samples prepared at different growth temperatures. We observe that interfaces fabricated at 650{\deg}C exhibit the…

材料科学 · 物理学 2015-03-20 A. Fête , C. Cancellieri , D. Li , D. Stornaiuolo , A. D. Caviglia , S. Gariglio , J. -M. Triscone

We study the temperature dependence of the conductivity of the 2D electronic solid. In realistic samples, a domain structure forms in the solid and each domain randomly orients in the absence of the in-plane field. At higher temperature,…

介观与纳米尺度物理 · 物理学 2009-11-10 Shi-Jie Yang , Yue Yu

The spin transition in LaCoO$_3$ has been investigated within the density-functional theory + dynamical mean-field theory formalism using continuous time quantum Monte Carlo. Calculations on the experimental rhombohedral atomic structure…

强关联电子 · 物理学 2015-01-15 M. Karolak , M. Izquierdo , S. L. Molodtsov , A. I. Lichtenstein

Molecular dynamics simulations are performed to study spatially heterogeneous dynamics in a model of viscous silica above and below the critical temperature of the mode coupling theory, $T_{MCT}$. Specifically, we follow the evolution of…

软凝聚态物质 · 物理学 2009-11-10 M. Vogel , S. C. Glotzer

By measuring AC susceptibility using a very low amplitude of the AC field (<1 mG) it is shown that underdoped samples of La_(2-x)Sr_xCuO_4 (LASCO), are diamagnetic in a temperature region above T_c up to a temperature T^*. This behavior is…

超导电性 · 物理学 2009-11-10 U. Thisted , J. Nyhus , T. Suzuki , J. Hori , K. Fossheim

We use spatially-resolved transport techniques to investigate the superconducting properties of single crystals La$_{2-x}$Ba$_x$CuO$_4$. We find a new superconducting transition temperature $T_{cs}$ associated with the ab-plane surface…

超导电性 · 物理学 2017-03-01 X. Y. Tee , T. Ito , T. Ushiyama , Y. Tomioka , I. Martin , C. Panagopoulos

Using the bottom-up approach in a holographic setting, we attempt to study both the transport and thermodynamic properties of a generic system in 3+1 dimensional bulk spacetime. We show the exact 1/T and $T^2$ dependence of the longitudinal…

高能物理 - 理论 · 物理学 2013-05-29 Shesansu Sekhar Pal

Cavalleri and coworkers have discovered evidence of light-induced superconductivity and related phenomena in several different materials. Here we suggest that some features may be naturally interpreted using a time-dependent Ginzburg-Landau…

超导电性 · 物理学 2018-11-12 M. Ross Tagaras , Jian Weng , Roland E. Allen

We comment on transport experiments in underdoped LaSrCuO in the non-superconducting phase. The temperature dependence of the resistance strongly resembles what is expected from standard localization theory. However this theory fails, when…

强关联电子 · 物理学 2007-05-23 C. Castellani , P. Schwab , M. Grilli

Synchro-Shockley dislocations, as zonal dislocation, are the major carrier of plasticity in Laves phases at high temperatures. The motion of synchro-Shockley dislocations is composed of localized transition events, such as kink-pair…

Behavior of \rho_{ab}(T) and R_{H}(T) is presented for LSCO and YBCO single crystals in the lightly hole-doped antiferromagnetic region, with an emphasis on the R_{H}(T) data. In both systems, R_{H} is virtually constant at moderate…

超导电性 · 物理学 2007-05-23 Yoichi Ando , Kouji Segawa , A. N. Lavrov , Seiki Komiya

Superconductivity in the cuprates emerges from an enigmatic metallic state. There remain profound open questions regarding the universality of observed phenomena and the character of precursor fluctuations above the superconducting (SC)…

超导电性 · 物理学 2012-10-26 G. Yu , D. -D. Xia , N. Barišić , R. -H. He , N. Kaneko , T. Sasagawa , Y. Li , X. Zhao , A. Shekhter , M. Greven

The 2D lattice gas model with competing short and long range interactions is appliedused for calculation of the incoherent charge transport in the classical strongly-correlated charge segregated polaronic state. We show, by means of…

强关联电子 · 物理学 2015-05-18 J. Miranda , T. Mertelj , V. Kabanov , D. Mihailovic

The effect of an electric field on the spatial charge and spin profiles of photoelectrons in p+-GaAs is studied as a function of lattice and electron temperature. The charge and spin mobilities of photoelectrons are equal in all conditions…

介观与纳米尺度物理 · 物理学 2015-06-09 F. Cadiz , D. Paget , A. C. H. Rowe , E. Peytavit , S. Arscott

The transport and thermoelectric properties of the interface between SrTiO$_3$ and a 26-monolayer thick LaAlO$_3$-layer grown at high oxygen-pressure have been investigated at temperatures from 4.2 K to 100 K and in magnetic fields up to 18…

介观与纳米尺度物理 · 物理学 2015-03-31 A. Jost , V. K. Guduru , S. Wiedmann , J. C. Maan , U. Zeitler , S. Wenderich , A. Brinkman , H. Hilgenkamp