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A novel heterodyne polarimetry system determines the frequency dependence from 900 to 1100 cm^-1 and temperature dependence from 35 to 330 K of the Hall transport in single crystal, optimally doped BSCCO. The results show a significant…

Superconductivity · Physics 2007-05-23 D. C. Schmadel , J. J. Tu , L. B. Rigal , D. B. Romero , M. Grayson , G. D. Gu , H. D. Drew

We report a study of magneto-optical properties in the mid-infrared region of a series of La$_{2-x}$Sr$_x$CuO$_4$ samples with hole doping level ranging from severely underdoped ($x=0.03$)to optimally doped ($x=0.15$). The Faraday rotation…

Strongly Correlated Electrons · Physics 2007-05-23 L. Shi , D. Schmadel , H. D. Drew , I. Tsukada , Yoichi Ando

he frequency dependence in the mid IR from 900 to 1100 cm$^{-1}$ and far IR at 84 cm$^{-1}$ and temperature dependence from 35 to 330 K of the normal state Hall transport is reported in single crystal, optimally doped…

Superconductivity · Physics 2007-05-23 D. C. Schmadel , G. S. Jenkins , J. J. Tu , G. D. Gu , Hiroshi Kontani , H. D. Drew

In-plane resistivity \rho_{ab}, Hall coefficient, and magnetoresistance (MR) are measured in a series of high-quality Bi_{2}Sr_{2-x}La_{x}CuO_{6} crystals with various carrier concentrations, from underdope to overdope. Our crystals show…

Superconductivity · Physics 2009-10-31 Yoichi Ando , T. Murayama

Infrared Hall measurements in the pseudogap phase of the high-$T_c$ cuprates are addressed within the framework of the ordered $d$-density wave state. The zero-temperature Hall frequency $\omega_H$ is computed as a function of the…

Superconductivity · Physics 2007-05-23 Sumanta Tewari , Sudip Chakravarty , John Ove Fjaerestad , Chetan Nayak , Richard S. Thompson

Heterodyne polarometry is used to measure the frequency dependence in the mid IR from 900 to 1100 cm$^-1$ and temperature dependence from 35 to 330 K of the normal state Hall transport in single crystal, optimally doped…

Strongly Correlated Electrons · Physics 2007-05-23 D. C. Schmadel , G. D. Gu , Hiroshi Kontaini , H. D. Drew

Low temperature specific heat has been measured in optimally doped and highly overdoped non-superconducting BaFe$_{2-x}$TM$_x$As$_{2}$ ($TM$ = Co and Ni) single crystals. By using the data of the overdoped samples, we successfully removed…

Superconductivity · Physics 2012-06-18 Bin Zeng , Gang Mu , Bing Shen , Peng Cheng , Huiqian Luo , Huan Yang , Lei Shan , Cong Ren , Hai-Hu Wen

Hall coefficient $R_H$ and thermoelectric power TEP are studied systematically in the single crystals $Nd_{2-x}Ce_xCuO_{4+\delta}$ (NCCO) with different x from underdoped to overdoped regime. With increasing doping level, both $R_H$ and TEP…

Strongly Correlated Electrons · Physics 2009-11-11 C. H. Wang , G. Y. Wang , T. Wu , Z. Feng , X. G. Luo , X. H. Chen

The anomalous magneto-transport properties in electron doped (n-type) cuprates were investigated using Hall measurements at THz frequencies. The complex Hall angle was measured in overdoped Pr$_{\rm 2-x}$Ce$_{\rm x}$CuO$_{\rm 4}$ samples…

Electronic heat transport in the normal state of a high-quality single crystal of optimally-doped superconductor YBa2Cu3O6.95 was studied by measurements of longitudinal and transverse transport coefficients. For the temperature range from…

Superconductivity · Physics 2010-01-04 M. Matusiak , K. Rogacki , B. W. Veal

The reflectivity $R (\omega)$ of $ab$-oriented Mg$_{1-x}$Al$_x$(B$_{1-y }$C$_y$)$_2$ single crystals has been measured by means of infrared microspectroscopy for $1300<\omega<17000$ cm$^{-1}$. An increase with doping of the scattering rates…

Superconductivity · Physics 2009-11-11 D. Di Castro , M. Ortolani , E. Cappelluti , U. Schade , N. D. Zhigadlo , J. Karpinski

We report Hall measurement of the normal state in K- and Co-doped BaFe$_2$As$_2$, as well NaFe$_{1-x}$Co$_x$As. We found that a power-law temperature dependence of Hall angle, cot$\theta_{\rm H}$$\propto$ $T^\beta$, prevails in normal state…

Superconductivity · Physics 2013-01-10 Y. J. Yan , A. F. Wang , X. G. Luo , Z. Sun , J. J. Ying , G. J. Ye , P. Chen , J. Q. Ma , X. H. Chen

We report the doping evolution of magnetic susceptibility $\chi (T)$ and Hall coefficient $R_H$ in high quality Ba$_{1-x}$K$_x$Fe$_2$As$_2$ ($0.13 \leq x \leq 1$) single crystals. It is found that the normal-state magnetic susceptibility of…

Superconductivity · Physics 2015-06-23 Yong Liu , Thomas A. Lograsso

Infrared (20-120 cm-1 and 900-1100 cm-1) Faraday rotation and circular dichroism are measured in high Tc superconductors using sensitive polarization modulation techniques. Optimally doped YBCO thin films are studied at temperatures down to…

Superconductivity · Physics 2009-10-31 J. Cerne , M. Grayson , D. C. Schmadel , G. S. Jenkins , H. D. Drew , R. Hughes , J. S. Preston , P. -J. Kung

Temperature dependent thermoelectric power (TEP) data on Ba(Fe1-xTMx)2As2 (TM = Co and Cu), complemented by the Hall coefficient data on the samples from the same batches, have been measured. For Co-doping we clearly see a change in the…

Superconductivity · Physics 2015-05-13 Eun Deok Mun , Sergey L. Bud'ko , Ni Ni , Paul C. Canfield

The temperature dependence of the Hall coefficient is measured with a high accuracy in a series of Zn-doped YBCO_{6.78} crystals with the Zn concentration from 0% to 1.3%. We found that the cotangent of the Hall angle, cot(\theta_H), starts…

Superconductivity · Physics 2009-10-31 Yasushi Abe , Kouji Segawa , Yoichi Ando

The temperature dependences of the Hall-Lorenz numbers (Lxy) in a EuBa2Cu3Oy (Eu-123) single crystal before and after oxygen reduction are reported. The study is based on data on the normal state longitudinal and transversal transport…

Superconductivity · Physics 2010-05-21 M. Matusiak , Th. Wolf

We have determined the finite temperature coherence length of edge states in the Integer Quantum Hall Effect (IQHE) regime. This was realized by measuring the visibility of electronic Mach-Zehnder interferometers of different sizes, at…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 P. Roulleau , F. Portier , P. Roche , A. Cavanna , G. Faini , U. Gennser , D. Mailly

We investigate the electronic specific heat of overdoped BaFe$_{2}$(As$_{1-x}$P$_{x}$)$_{2}$ single crystals in the superconducting state using high-resolution nanocalorimetry. From the measurements, we extract the doping dependence of the…

Superconductivity · Physics 2016-01-27 Z. Diao , D. Campanini , L. Fang , W. K. Kwok , U. Welp , A. Rydh

Using finite-temperature Lanczos method the frequency-dependent Hall response is calculated numerically for the t-J model on the square lattice and on ladders. At low doping, both the high-frequency RH* and the d.c. Hall coefficient RH0…

Strongly Correlated Electrons · Physics 2009-11-07 Darko Veberic , Peter Prelovsek
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