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We have investigated the resistivity ($\rho$), thermoelectric power (TEP) and Hall coefficient ($R_{H}$) on high quality single crystals of REFe$_{4}$P$_{12}$. TEP in CeFe$_{4}$P$_{12}$ is extremely large ($\sim$ 0.5mV/K at 290K) with a…

Strongly Correlated Electrons · Physics 2009-10-31 H. Sato , Y. Abe , H. Okada , T. D. Matsuda , K. Abe , H. Sugawara , Y. Aoki

We present a study of thermal conductivity in the normal state of the heavy-fermion superconductor URu$_{2}$Si$_{2}$. Ordering at 18K leads to a steep increase in thermal conductivity and (in contrast with all other cases of magnetic…

Strongly Correlated Electrons · Physics 2009-11-10 K. Behnia , R. Bel , Y. Kasahara , Y. Nakajima , H. Jin , H. Aubin , K. Izawa , Y. Matsuda , J. Flouquet , Y. Haga , Y. Onuki , P. Lejay

We present a study of Nernst and Seebeck coefficients in the heavy-fermion compound URu$_{2}$Si$_{2}$, which hosts a phase transition of unsettled origin. A giant Nernst signal of unprecedented magnitude was found to emerge in the ordered…

Strongly Correlated Electrons · Physics 2009-11-10 Romain Bel , Hao Jin , Kamran Behnia , Jacques Flouquet , Pascal Lejay

We report a study of Co-doped berthierite Fe$_{1-x}$Co$_x$Sb$_2$S$_4$ ($x$ = 0, 0.1, and 0.2). The alloy series of Fe$_{1-x}$Co$_x$Sb$_2$S$_4$ crystallize in an orthorhombic structure with the Pnma space group, similar to FeSb$_2$, and show…

Strongly Correlated Electrons · Physics 2018-04-24 Yu Liu , Chang-Jong Kang , Eli Stavitski , Qianheng Du , Klaus Attenkofer , G. Kotliar , C. Petrovic

W. Chr. Germs, K. Guo, R. A. J. Janssen, and M. Kemerink [1] recently measured the temperature and concentration dependent seebeck coefficient in organic thin film transistor and found the seebeck coefficient increases with carrier…

Disordered Systems and Neural Networks · Physics 2012-12-04 Ling Li , Nianduan Lu , Ming Liu

X-ray and electron diffraction measurements on the metal-insulator (M-I) transition compound PrRu$_4$P$_{12}$ have revealed the emergence of a periodic ordering of charge density around the Pr atoms. It is found that the ordering is…

Strongly Correlated Electrons · Physics 2009-11-10 C. H. Lee , H. Matsuhata , H. Yamaguchi , C. Sekine , K. Kihou , T. Suzuki , T. Noro , I. Shirotani

We report a detailed study of the electrical transport properties of single crystals of Pr$_4$Fe$_2$As$_2$Te$_{1-x}$O$_4$, a recently discovered iron-based superconductor. Resistivity, Hall effect and magnetoresistance are measured in a…

Superconductivity · Physics 2016-12-22 A. Pisoni , P. Szirmai , S. Katrych , B. Náfrádi , R. Gaál , J. Karpinski , L. Forró

A dramatic increase in the total thermal conductivity (k) is observed in the Hidden Order (HO) state of single crystal URu2Si2. Through measurements of the thermal Hall conductivity, we explicitly show that the electronic contribution to k…

Strongly Correlated Electrons · Physics 2009-11-11 P. A. Sharma , N. Harrison , M. Jaime , Y. S. Oh , K. H. Kim , C. D. Batista , J. A. Mydosh , H. Amitsuka

Only few selected examples among the great diversity of anomalous rare earth skutterudite are reviewed. Focus is first given on PrFe4P12 in comparison with URu2Si2. For PrFe4P12, great progress has been made on determining the nature of the…

Strongly Correlated Electrons · Physics 2015-05-13 E. Hassinger , J. Derr , J. Levallois , D. Aoki , K. Behnia , F. Bourdarot , G. Knebel , C. Proust , J. Flouquet

Ferromagnetic ordering with a small magnetic moment is found below 14 K from SQUID measurements for the compound Ce4Sb1.5Ge1.5. The transport characteristics of a number of Ce4Sb3-xTx (T = Ge, Si, Sn, Pb, Al) systems were measured at room…

Strongly Correlated Electrons · Physics 2014-04-01 V. N. Nikiforov , V. V. Pryadun , A. V. Morozkin , V. Yu. Irkhin

We analyze the thermoelectric response in layered metals with spontaneously broken rotation symmetry. We identify the anisotropy of the quasiparticle Nernst signal as an extremely sensitive probe of Fermi surface distortions characteristic…

Superconductivity · Physics 2009-12-31 Andreas Hackl , Matthias Vojta

The transverse Nernst Ettingshausen (N-E) effect and electron mobility in Pb$_{1-x}$Sn$_x$Se alloys are studied experimentally and theoretically as functions of temperature and chemical composition in the vicinity of vanishing energy gap…

Materials Science · Physics 2016-05-31 K. Dybko , P. Pfeffer , M. Szot , A. Szczerbakow , A. Reszka , T. Story , W. Zawadzki

We study the Hall and Nernst effects across the antiferromagnetic transition that reconstructs the quasi-2D Fermi surface of the metallic local moment antiferromagnet PdCrO$_2$. We show that non- monotonic temperature dependence in the Hall…

Mesoscale and Nanoscale Physics · Physics 2016-01-07 Ramzy Daou , Raymond Frésard , Sylvie Hébert , Antoine Maignan

We report results of magnetization, zero field resistivity and magnetoresistance measurements in ferromagnetic Heusler alloy Co$_2$TiSn. There is a striking change in the character of electron transport as the system undergoes the…

Materials Science · Physics 2009-11-11 S. Majumdar , M. K. Chattopadhyay , V. K. Sharma , K. J. S. Sokhey , S. B. Roy , P. Chaddah

We propose experimental protocols to reveal thermoelectric and thermal effects in the transport properties of ultracold fermionic atoms, using the two-terminal setup recently realized at ETH. We show in particular that, for two reservoirs…

Quantum Gases · Physics 2013-11-12 Charles Grenier , Corinna Kollath , Antoine Georges

The elastic properties of a filled skutterudite PrOs_4Sb_{12} with a heavy Fermion superconductivity at T_C=1.85 K have been investigated. The elastic softening of (C_{11}-C_{12})/2 and C_{44} with lowering temperature down to T_C indicates…

Fe$_{1+y}$Te with $y \lesssim 0.05$ exhibits a first-order phase transition on cooling to a state with a lowered structural symmetry, bicollinear antiferromagnetic order, and metallic conductivity, $d\rho/dT > 0$. Here, we study samples…

The evolution of the superconducting transition temperature ($T_c$) in FeSe was investigated under in-plane, out-of-plane, and hydrostatic compression. For pressures up to 0.6 GPa, $T_c$ increases regardless of the compression mode,…

Superconductivity · Physics 2026-04-06 Alexy Bertrand , Masaki Mito , Kazuma Nakamura , Mahmoud Abdel-Hafiez

Coexisting fluctuations towards various ordered states are ubiquitous in strongly correlated electronic systems. In particular, measurements of underdoped cuprate high-temperature superconductors reveal evidence for short range charge order…

Superconductivity · Physics 2014-12-10 Gideon Wachtel , Dror Orgad

We report the thermodynamic, magnetic, and electronic transport properties of the new ternary intermetallic system (Ce,La)3Pt4In13. Ce3Pt4In13 orders antiferromagnetically at 0.95 K while the non-magnetic compound La3Pt4In13 is a…

Strongly Correlated Electrons · Physics 2009-11-07 M. F. Hundley , J. L. Sarrao , J. D. Thompson , R. Movshovich , M. Jaime , C. Petrovic , Z. Fisk
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