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Showing 1 to 9 of 9 for “"FFLO"”.
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Searching For FFLO States in Ultracold Polarized Fermi Gases: A Numerical Approach
… on the exotic Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase, which is characterized by a spatially oscillating order parameter. In 3D, we solve for the stationary states of trapped imbalanced Fermi gases in a wide range of parameter space with a home-made parallel eigen-solver for Bogoliubov-de …
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Quasi-One-Dimensional Ultracold Fermi Gases
… crossover paves the way to search for the exotic FFLO (Fulde-Ferrell-Larkin-Ovchinnikov) superconductor. While most superconductors do not coexist with magnetism, the FFLO phase requires large magnetic fields to support its pairing mechanism. Additionally, this phase is more likely to be found in …
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Topological insulators and semimetals in the presence of interactions
… Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) and point nodal BCS state are known to be the possible superconducting states in inversion symmetric doped WSM. To experimentally determine the preferred pairing state, we propose a Josephson junction transport method that shows a unique …
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Pairing and entanglement: quantum Monte Carlo studies
… in-situ signature of a pairing mechanism (dubbed FFLO after its first proposers) which implies a microscopic phase fluctuation in space between a normal fluid and a superfluid. VMC is used to model homonuclear diatomic molecules of period-2 elements. The degree of entanglement and the responsible …
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Condensation and pairing in inhomogeneous cold atomic and electronic systems
… the so-called Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state, and an unpaired completely spin-polarized phase. We present numerical profiles of key parameters of the phase diagram as well as observable signatures of the oscillatory pairing phase. The third topic is that of transport physics in a …
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Periodically Modulated Electronic States in Natural Superlattices
… of 2D Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconductivity for M = Nb and preliminary evidence for a correlated insulator ground state when M = V. We conclude by discussing prospects of identifying new members of this family and, more broadly, new families of bulk superlattices.
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Investigation of superconducting order parameters in heavy-fermion and low-dimensional metallic systems under pressure
… realization of the inhomogeneous superconducting FFLO state in CeCoIn5 is studied by specific heat measurements under hydrostatic pressure, while in Chapter 4 the results of AC specific heat experiments on UBe13 under uniaxial pressure are presented. The ambient pressure properties as well as …
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Exploring the interplay between topological order, magnetism and superconductivity
… interactions. This state is characterized by FFLO-type oscillations where the Cooper pairs obtain a finite center of mass momentum. Chapter 4 describes the new spin Josephson effect. We explore a spin Josephson effect in a system of two ferromagnets coupled by a tunnel junction formed of 2D …
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Spin-Mediated Transport in Superconducting and Spin-Polarized Systems
The effects of spin-imbalance on the electronic transport properties of spin-polarized and superconducting systems have been studied in detail. The transport properties of the quaternary Heusler alloys Co2MnSi1-xAlx (0≤x≤1), which have been theoretically predicted to develop a half-metallic band …