Erratum: Pressure Dependence of the Fulde-Ferrell-Larkin-Ovchinnikov State in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>CeCoIn</mml:mi><mml:mn>5</mml:mn></mml:msub></mml:math>[Phys. Rev. Lett.<b>96</b>, 117001 (2006)]

Miclea, C.; Parker, David; Maki, Kazumi; Sarrao, J. L.; Thompson, J. D.; Sparn, G.; Steglich, F.

doi:10.1103/physrevlett.97.039901

Cited by 61 publications

(121 citation statements)

References 2 publications

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“…We stress that the role of antiferromagnetic fluctuations near the quantum critical point, which is important for the superconductivity and the non-Fermi liquid behavior in the normal state of CeCoIn 5 [29], on the FFLO state is not well understood so far. In fact, very recent heat capacity measurements under pressure clearly demonstrate that antiferromagnetic fluctuations is unfavorable for the stability of the FFLO state [30]. How the antiferromagnetic fluctuations affect both the FFLO phase diagram and the quasiparticle excitation spectrum in the FFLO state calls for further investigations.…”

Section: T (#2) (B) 460 T (#1) (C) 480 T (#1) and (D) 485 T (#1)mentioning

confidence: 99%

Fulde-Ferrell-Larkin-Ovchinnikov State in a Perpendicular Field of Quasi-Two-DimensionalCeCoIn5

et al. 2006

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A Fulde-Ferrell-Larkin-Ovchinnkov (FFLO) state was previously reported in the quasi-2D heavy fermion CeCoIn5 when a magnetic field was applied parallel to the ab-plane. Here, we conduct 115 In NMR studies of this material in a perpendicular field, and provide strong evidence for FFLO in this case as well. Although the topology of the phase transition lines in the H-T phase diagram is identical for both configurations, there are several remarkable differences between them. Compared to H ab, the FFLO region for H ⊥ ab shows a sizable decrease, and the critical field separating the FFLO and non-FFLO superconducting states almost ceases to have a temperature dependence. Moreover, directing H ⊥ ab results in a notable change in the quasiparticle excitation spectrum within the planar node associated with the FFLO transition.

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Section: T (#2) (B) 460 T (#1) (C) 480 T (#1) and (D) 485 T (#1)mentioning

confidence: 99%

Fulde-Ferrell-Larkin-Ovchinnikov State in a Perpendicular Field of Quasi-Two-DimensionalCeCoIn5

et al. 2006

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“…in multiband superconductors like IBSC [33][34][35][36] or MgB 2 [37,38]. Specific heat measurements have been also successfully used to investigate the FFLO phase in heavy-fermion systems [7,8,11] and organic superconductors [14], where the peaks, deep in the superconducting state in the LTHM regime, have been interpreted as phase transitions from BCS to FFLO state.…”

Section: Introductionmentioning

confidence: 99%

“…Only in the last decade systems have appeared in which we expect an experimental verification of this phase, such as heavy-fermion superconductors [6] (e.g. CeCoIn 5 [7][8][9][10][11]) or organic superconductors (e.g. [14][15][16][17][18]).…”

Section: Introductionmentioning

confidence: 99%

Multiple phase transitions in Pauli-limited iron-based superconductors

Ptok

2015

J. Phys.: Condens. Matter

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Abstract. Specific heat measurements have been successfully used to probe unconventional superconducting phases in one-band heavy-fermion and organic superconductors. We extend the method to study successive phase transitions in multi-band materials such as iron based superconductors. The signatures are multiple peaks in the specific heat, at low temperatures and high magnetic field, which can lead the experimental verification of unconventional superconducting states with non-zero total momentum.

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“…Now there is a growing body of experimental evidence for the FFLO phase, generated by the applied magnetic field, reported from various measurements [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] . However, any unambiguous experimental results, which can be interpreted only as a fingerprint of the FFLO-state, are not reported by now.…”

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In-plane Fulde-Ferrel-Larkin-Ovchinnikov instability in a superconductor–normal metal bilayer system under nonequilibrium quasiparticle distribution

Bobkova

Bobkov

2013

Phys. Rev. B

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It is predicted that a new class of systems -superconductor/normal metal (S/N) heterostructures can reveal the in-plane Fulde-Ferrel-Larkin-Ovchinnikov (FFLO) instability under nonequilibrium conditions at temperatures close to the critical temperature. It does not require any Zeeman interaction in the system. For S/N heterostructures under non-equilibrium distribution there is a natural easily adjustable parameter -voltage, which can control the FFLO-state. This FFLO-state can be of different types: plane wave, stationary wave and, even, 2D-structures are possible. Some types of the FFLO-state are accompanied by the magnetic flux, which can be observed experimentally. All the types of the FFLO-state can be revealed through the temperature dependence of the linear response of the system on the applied magnetic field near Tc, which strongly differs from that one for the homogeneous state.PACS numbers: 74.45.+c, 74.40.Gh There are two mechanisms of superconductivity destruction by a magnetic field: orbital effect and the Zeeman interaction of electron spins with the magnetic field. Usually the orbital effect is more restrictive. However there are several classes of systems, where the orbital effect is strongly weakened (systems with large effective mass of electrons 1,2 , thin films and layered superconductors under in-plane magnetic field 3 ) or even completely absent (superconductor/ferromagnet (S/F) heterostructures 4,5 ). Then the Zeeman interactions of electron spins with a magnetic or an exchange field is responsible for the superconductivity destruction.The behavior of a superconductor with a homogeneous exchange field h was studied long ago 6-9 . It was found that homogeneous superconducting state becomes energetically unfavorable above the paramagnetic (Pauli) limit h = ∆ 0 / √ 2, where ∆ 0 is the zero-temperature superconducting gap. As it was predicted by Larkin and Ovchinnikov 6 and by Fulde and Ferrell 7 , in a narrow region of exchange fields exceeding this value superconductivity can appear as an inhomogeneous state with a spatially modulated Cooper pair wave function (FFLOstate).Now there is a growing body of experimental evidence for the FFLO phase, generated by the applied magnetic field, reported from various measurements 10-24 . However, any unambiguous experimental results, which can be interpreted only as a fingerprint of the FFLO-state, are not reported by now.On the other hand, it has been predicted recently 25 that the FFLO-state can be realized in S/F heterostructures, where S is a singlet s-wave superconductor. Here we mean the so-called in-plane FFLO-state, where the superconducting order parameter profile is modulated along the layers. It should be distinguished from the normal to the S/F interface oscillations of the condensate wave function in the ferromagnetic layer, which are well investigated as theoretically, so as experimentally 4,5,26 .In this paper we show that the in-plane FFLO-state can be the most energetically favorable state in S/N heterostructures under the non-equili...

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Erratum: Pressure Dependence of the Fulde-Ferrell-Larkin-Ovchinnikov State inCeCoIn5[Phys. Rev. Lett.96, 117001 (2006)]

Cited by 61 publications

References 2 publications

Fulde-Ferrell-Larkin-Ovchinnikov State in a Perpendicular Field of Quasi-Two-DimensionalCeCoIn5

Fulde-Ferrell-Larkin-Ovchinnikov State in a Perpendicular Field of Quasi-Two-DimensionalCeCoIn5

Multiple phase transitions in Pauli-limited iron-based superconductors

In-plane Fulde-Ferrel-Larkin-Ovchinnikov instability in a superconductor–normal metal bilayer system under nonequilibrium quasiparticle distribution

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