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We have investigated the temperature (T)-dependent evolution of electronic structures and magnetic properties of an itinerant ferromagnet SrRuO3, employing the combined scheme of the density functional theory and the dynamical mean-field…

Strongly Correlated Electrons · Physics 2015-08-13 Minjae Kim , B. I. Min

Superconductor/ferromagnet bilayers are known to exhibit nontrivial dependence of the critical temperature T_c on the thickness d_f of the ferromagnetic layer. We develop a general method for investigation of T_c as a function of the…

Superconductivity · Physics 2007-05-23 Ya. V. Fominov , N. M. Chtchelkatchev , A. A. Golubov

Time-of-flight neutron powder diffraction and specific heat measurements were used to study the nature of thermal expansion in rhenium trioxide, an electrically conducting oxide with cubic symmetry. The temperature evolution of the lattice…

We study a bilayer consisting of an ordinary superconductor and a magnet with a spiral magnetic structure of the {\rm Ho} type. We use a self consistent solution of the Bogolioubov-de Gennes equations to evaluate the pair amplitude, the…

Superconductivity · Physics 2013-03-01 Chien-Te Wu , Oriol T. Valls , Klaus Halterman

Magnetic critical scaling in URu2-xRexSi2 single crystals continuously evolves as the ferromagnetic critical temperature is tuned towards zero via chemical substitution. As the quantum phase transition is approached, the critical exponents…

Strongly Correlated Electrons · Physics 2009-08-14 Nicholas P. Butch , M. Brian Maple

In order to test the recently proposed connection between the neutron resonance and the specific heat anomaly in cuprates, the experimental specific heat data on $YBa_2Cu_3O_{6.93}$ and a theoretical estimate of the single particle…

Superconductivity · Physics 2007-05-23 Boldizsar Janko

We study the temperature dependence of the conductivity due to quantum interference processes for a two-dimensional disordered itinerant electron system close to a ferromagnetic quantum critical point. Near the quantum critical point, the…

Strongly Correlated Electrons · Physics 2009-11-11 I. Paul , C. Pépin , B. N. Narozhny , D. L. Maslov

We report measurements of thermal expansion on a number of polycrystalline CuxTiSe2 samples corresponding to the parts of x - T phase diagram with different ground states, as well as the pressure dependence of the superconducting transition…

Materials Science · Physics 2007-05-23 S. L. Bud'ko , P. C. Canfield , E. Morosan , R. J. Cava , G. M. Schmiedeshoff

We calculate the in-plane Seebeck coefficient of Sr$_2$RuO$_4$ within a framework combining electronic structure and dynamical mean-field theory. We show that its temperature-dependence is consistent with entropic considerations embodied in…

Strongly Correlated Electrons · Physics 2016-07-20 Jernej Mravlje , Antoine Georges

We have carried out a comprehensive study of the UCo1-xFexGe series across the entire range of compositions 0 <= x <= 1, and report the results of x-ray diffraction, magnetization, specific heat, and electrical resistivity to uncover the…

Strongly Correlated Electrons · Physics 2013-03-14 K. Huang , J. J. Hamlin , R. E. Baumbach , M. Janoschek , N. Kanchanavatee , D. A. Zocco , F. Ronning , M. B. Maple

The layered transition metal trihalide $\alpha$-RuCl$_3$ has been studied extensively in recent years as a promising candidate for a proximate Kitaev quantum spin liquid state. In high quality samples, a complete structural transition from…

Materials Science · Physics 2026-01-05 Paige Harford , Ezekiel Horsley , Subin Kim , Young-June Kim

High-Curie-temperature ferromagnets are promising candidates for designing new spintronic devices. Here we have successfully synthesized a single-crystal sample of the itinerant ferromagnet Mn$ _{5}$Ge$_{3}$ used flux method and its…

Angular-dependent magnetic torque measurements performed near the critical temperature on single crystals of HgBa_{2}CuO_{4+y}, La_{2-x}Sr{x}CuO_{4}, and YBa_{2}Cu_{3}O_{6.93} are scaled, following the 3D XY model, in order to determine the…

Superconductivity · Physics 2009-10-31 J. Hofer , T. Schneider , J. M. Singer , M. Willemin , H. Keller , T. Sasagawa , K. Kishio , K. Conder , J. Karpinski

We have investigated the metamagnetic-like transition in the triple layer ruthenate Sr4Ru3O10 by means of neutron diffraction from single crystals. The magnetic structure of the compound appears to be determined in a complex way by the two…

Strongly Correlated Electrons · Physics 2019-06-10 L. Capogna , V. Granata , B. Ouladdiaf , J. A. Rodriguez-Velamazan , R. Fittipaldi , A. Vecchione

Using Taylor expansions of the pressure obtained previously in studies of 2-flavor QCD at non-zero chemical potential we calculate expansion coefficients for the energy and entropy densities up to ${\cal O}(\mu_q^6)$ in the quark chemical…

High Energy Physics - Lattice · Physics 2009-11-11 S. Ejiri , F. Karsch , E. Laermann , C. Schmidt

Off-stoichiometric Ni$_2$MnIn Heusler alloys have drawn recent attention due to their large magnetocaloric entropy change associated with the first-order magneto-structural transition. Here we present crystal structural, calorimetric and…

Systematically magnetic and magnetothermal measurements at temperatures down to 2 K and magnetic fields up to 13.5 Tesla for Gd(OH)3 Single Crystal Nanowires - Quasi-1D Large Spin (S = -7/2) Chain Antiferromagnet have been conducted. We…

Materials Science · Physics 2012-07-16 R. Zeng , C. F. Zhang , J. C. Debnath , P. Shamba , J. L. Wang , Z. X. Chen , Z. P. Guo , S. X. Dou

Crossing point phenomena are one of the interesting and still puzzling effects in strongly correlated electron systems. We have synthesized RuSr2Gd1.4Ce0.6Cu2O10-{\delta} (GdRu-1222) magneto-superconductor through standard solid state…

Superconductivity · Physics 2015-06-03 Anuj Kumar , R. P. Tandon , Jianli Wang , Rong Zeng , V. P. S. Awana

We calculate resistivity in the paramagnetic phase just above the curie temperature in a $2d$ ferromagnetic metal. The required dynamical susceptibility in the formalism of resistivity is calculated within the Random Phase…

Strongly Correlated Electrons · Physics 2019-06-26 Komal Kumari , Raman Sharma , Navinder Singh

Based on renormalization group arguments we establish that for a superconductor in the presence of a weak external magnetic field, $B$, the dependence on $B$ and the deviation from the critical temperature, $\tau$, of a thermodynamic…

Superconductivity · Physics 2007-05-23 Denjoe O'Connor , C. R. Stephens
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