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Related papers: Superfluid $^3$He in Planar Aerogel

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The emergence of superconductivity in two-dimensional transition metal dichalcogenides with strong spin orbit coupling (SOC) has opened new avenues for exploring exotic superconducting states. Here, we report experimental observation of an…

We present the first theoretical calculation of the pressure-temperature-field phase diagram for the vortex phases of rotating superfluid $^3$He-B. Based on a strong-coupling extension of the Ginzburg-Landau theory that accounts for the…

Superconductivity · Physics 2020-02-11 Robert C. Regan , J. J. Wiman , J. A. Sauls

We have designed and constructed a magnet surrounding a cylindrical volume of superfluid helium-3 to isolate a region of metastable, supercooled A-phase, entirely surrounded by bulk A-phase - isolating the 'bubble' from rough surfaces that…

We have studied the liquid - solid (L-S) phase transition of ^4He confined in nanoporous glass, which has interconnected nanopores of 2.5 nm in diameter. The L-S boundary is determined by the measurements of pressure and thermal response…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Keiichi Yamamoto , Yoshiyuki Shibayama , Keiya Shirahama

We study the superfluid pairing in a two-species gas of heteronuclear fermionic molecules with equal density. The interplay of the isotropic s-wave interaction and anisotropic long-range dipolar interaction reveals rich physics. We find…

Quantum Gases · Physics 2011-03-11 Renyuan Liao , Joachim Brand

We study the coupled dynamics of normal and superfluid components of the superfluid $^4$He in the channel considering the counterflow turbulence with laminar normal component. In particular, we calculated profiles of the normal velocity,…

Other Condensed Matter · Physics 2016-12-21 Dmytro Khomenko , Pankaj Mishra , Anna Pomyalov

The polar phase of $^3$He, which is topological spin-triplet superfluid with the Dirac nodal line in the spectrum of Bogolubov quasiparticles, has been recently stabilized in a nanoconfined geometry. We pump magnetic excitations (magnons)…

Other Condensed Matter · Physics 2018-07-18 S. Autti , V. V. Dmitriev , J. T. Mäkinen , J. Rysti , A. A. Soldatov , G. E. Volovik , A. N. Yudin , V. B. Eltsov

We have derived the adsorption potential of $^4$He atoms on fluorographene (GF), on graphane and on hexagonal boron nitride (hBN) by a recently developed ab initio method that incorporates the van der Waals interaction. The $^4$He monolayer…

Mesoscale and Nanoscale Physics · Physics 2019-03-04 Pier Luigi Silvestrelli , Marco Nava , Francesco Ancilotto , Luciano Reatto

In this article, we give a comprehensive review of recent progress in research on symmetry-protected topological superfluids and topological crystalline superconductors, and their physical consequences such as helical and chiral Majorana…

The pairing correlations in superfluid He-3 are strongly modified by quasiparticle scattering off a surface or an interface. We present theoretical results and predictions for the order parameter, the quasiparticle excitation spectrum and…

Superconductivity · Physics 2007-05-23 A. B. Vorontsov , J. A. Sauls

The specific heat of superfluid $^{3}$He, disordered by a silica aerogel, is found to have a sharp discontinuity marking the thermodynamic transition to superfluidity at a temperature reduced from that of bulk $^{3}$He. The magnitude of the…

Superconductivity · Physics 2007-05-23 H. Choi , K. Yawata , T. M. Haard , J. P. Davis , G. Gervais , N. Mulders , P. Sharma , J. A. Sauls , W. P. Halperin

We calculate properties of a model of $^4$He in Vycor using the Path Integral Monte Carlo method. We find that $^4$He forms a distinct layered structure with a highly localized first layer, a disordered second layer with some atoms…

Computational Physics · Physics 2009-11-11 Saad A. Khairallah , D. M. Ceperley

Competing pairing channels have been proposed in superfluid $^3$He, in the high temperature cuprate superconductors, and pnictide superconductors. While strong experimental support exists for this in superfluid $^3$He, the case for…

Superconductivity · Physics 2011-06-16 S. Mukherjee , D. F. Agterberg

In bilayer systems electron-hole (e-h) pairs with spatially separated components (i.e., with electrons in one layer and holes in the other) can be condensed to a superfluid state when the temperature is lowered. This article deals with the…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 A. I. Bezuglyj , S. I. Shevchenko

We present a theory of spinor superfluidity in a two-species heteronuclear ultracold fermionic atomic gas consisting of arbitrary half-integer spin and one-half spin atoms. In particular, we focus on the magnetism of the superfluid phase…

Statistical Mechanics · Physics 2009-11-13 D. B. M. Dickerscheid , Y. Kawaguchi , M. Ueda

We have studied spinning superfluid $^4$He nanodroplets at zero temperature using Density Functional theory. Due to the irrotational character of the superfluid flow, the shapes of the spinning nanodroplets are very different from those of…

Mesoscale and Nanoscale Physics · Physics 2018-05-30 Francesco Ancilotto , Manuel Barranco , Marti Pi

We study the thermodynamic phases of a gas of spin-1/2 atoms in the Hartree-Fock approximation. Our main result is that, for repulsive or weakly-attractive inter-component interaction strength, the superfluid and ferromagnetic phase…

Soft Condensed Matter · Physics 2009-11-10 S. Ashhab

The magnetization and anisotropic electrical transport properties have been measured in high quality Cu0.03TaS2 single crystal. A pronounced peak effect has been observed, indicating that the high quality and homogeneity are vital to peak…

Superconductivity · Physics 2010-12-08 X. D. Zhu , J. C. Lu , Y. P. Sun , L. Pi , Z. Qu , L. S. Ling , Z. R. Yang , Y. H. Zhang

Magnetic properties in a magnetically textured ferrofluid made out of interacting maghemite (gamma-Fe2O3) nanoparticles suspended in glycerin have been investigated. Despite the loss of uniform distribution of anisotropy axes, a superspin…

The superfluid transition of $^3$He-$^4$He mixture films adsorbed on alumina powder is studied, with a $^4$He superfluid coverage near one layer. With up to 1.3 layers of $^3$He added, the transition becomes strongly broadened, indicating a…

Statistical Mechanics · Physics 2009-10-31 Han-Ching Chu , Gary A. Williams
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