Anomalous Field Dependence of Magnetic Penetration Depth in the Vortex State of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>CeRu</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>Probed by Muon Spin Rotation

Yamashita, A.; Ishii, Keiko; Yokoo, Tetsuya; Akimitsu, Jun; Hedo, Masato; Inada, Yuji; Ōnuki, Yoshichika; Yamamoto, Etsuji; Haga, Yoshinori; Kadono, R.

doi:10.1103/physrevlett.79.3771

Cited by 22 publications

(12 citation statements)

References 12 publications

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“…Finally, there were reports that FFLO phases also appear in the heavy fermions superconductors UPd2Al3 (103, 104), CeRu2 (104,105), and CeCoIn5 (106,107). However, the phase transition attributed to the FFLO-like PDW phase in both UPd2Al3 and CeRu2 has been argued to a consequence of a vortex related transition (87).…”

Section: Organics Fe-based Superconductors and Heavy Fermion Materialsmentioning

confidence: 99%

The Physics of Pair-Density Waves: Cuprate Superconductors and Beyond

Agterberg

Davis

Edkins

et al. 2020

Annu. Rev. Condens. Matter Phys.

336

205

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We review the physics of pair density wave (PDW) superconductors. We begin with a macroscopic description that emphasizes order induced by PDW states, such as charge density wave, and discuss related vestigial states that emerge as a consequence of partial meting of the PDW order. We review and critically discuss the mounting experimental evidence for such PDW order in the cuprate superconductors, the status of the theoretical microscopic description of such order, and the current debate on whether the PDW is a "mother order" or another competing order in the cuprates. In addition, we give an overview of the weak coupling version of PDW order, Fulde-Ferrell-Larkin-Ovchinnikov states, in the context of cold atom systems, unconventional superconductors, and non-centrosymmetric and Weyl materials.The GLW energy density consistent with time-reversal, parity, space group, and gauge symmetries is (5, 15)The parameters βi depend upon the specific microscopic model. Depending on which values are found for these, one of five possible ground states can be realized. These five phases include the following: the FF-type phase with only one momentum component, the FF * phase which is a bidirectional version of the FF-type phase, the LO type which include pairing with opposite momentum components: these include the unidirectional phase, and the bidirectional-I (II) phases which have a phase factor of 0 (π/2) between the two unidirectional components. These five states give rise to different patterns of induced order, providing a means to distinguish them. We now turn to these induced orders.Induced Order Parameters www.annualreviews.org • The Physics of Pair Density Waves 3 6 Agterberg et al.

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Section: Organics Fe-based Superconductors and Heavy Fermion Materialsmentioning

confidence: 99%

The Physics of Pair-Density Waves: Cuprate Superconductors and Beyond

Agterberg

Davis

Edkins

et al. 2020

Annu. Rev. Condens. Matter Phys.

336

205

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“…In general, the Figures 1(c) and 1(d) display the change of the transition temperature T c = T c − T cP , due to the orbital effects of the applied magnetic field as a function of the reduced temperature for different field orientations, for the IM and SM models, respectively. The dashed lines illustrate the results of neglecting the second harmonics of the order parameter ±2 , or the coupling between the equations in the system (17) and (18), while the solid lines are the solutions of the full system of these equations. One can see that two types of curves arrows, the suppression of the critical temperature due to the orbital effect becomes negligible.…”

Section: Resultsmentioning

confidence: 99%

“…18is the same as the corresponding term in Eq. (17) and the precise resonance is established with S ξ R (q,Q) = −c ξ t 2 . In the IM model, the resonance occurs when |q ± 2Q| = |q|, i.e., q • Q = ±Q 2 .…”

Section: Theoretical Modelmentioning

confidence: 99%

“…The FFLO state is expected to exist also in heavy fermion superconductors. [16][17][18][19] Previously it has been demonstrated that in the tilted magnetic field the interplay between the orbital and the spin effects gives rise to the very peculiar angular upper critical field behavior. [20][21][22][23] In the case of the parallel orientation of the magnetic field, the orbital effect, though small, provides an interesting possibility to sample the direction of the FFLO modulation-the in-plane anisotropy of the onset of superconductivity should change dramatically in the FFLO state.…”

Section: Introductionmentioning

confidence: 99%

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Resonance in-plane magnetic field effect as a means to reveal the Fulde-Ferrell-Larkin-Ovchinnikov state in layered superconductors

Croitoru

Buzdin

2012

Phys. Rev. B

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The vector potential of a parallel magnetic field produces a modulation of the interlayer coupling between adjacent superconducting layers. In some cases the period of this modulation can coincide with the period of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) modulation of the superconducting order parameter. Such a resonance condition results in cusps on the temperature and in-plane angular dependencies of the upper critical field H c2. This effect can open up a possibility to unambiguously evidence a spatially modulated superconducting phase in layered conductors. Remarkably, the proposed signature of the FFLO state is directly based on the main feature of the FFLO state, the spatial modulations of the order parameter.

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“…Although it is not known yet whether similar phases of vortex-matter i.e. Bragg-glass and vortex-glass are also present in the superconducting mixed state of CeRu ¾ , there exists suggestion of a field induced first-order transition in CeRu ¾ [21,47,[87][88][89]] to a superconducting state with a new superconducting order parameter. The idea of this high fieldFulde-Ferrel-Larkin-Ovchinnikov (FFLO)-superconducting state has some support from various experimental studies including magnetization [21,47], magnetostriction [21,47], magnetoelastic [87] and SR measurements [89].…”

Section: Anomalous Superconducting Mixed State and Possible Vortex-mamentioning

confidence: 96%

Interesting normal state and superconducting properties of the intermediate valence compound CeRu2

Roy

Chaddah

1999

Pramana - J Phys

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Superconductivity in CeRu¾ was discovered 40 years ago, and was extensively studied because alloying with magnetic elements showed the coexistence of superconductivity and magnetic order. The normal state of CeRu¾ has been of interest because of its intermediate valence character. The superconducting state has been studied extensively because of its paramagnetic nature and anomalous pinning properties. This review presents the present status of knowledge, and discusses the puzzling features of CeRu¾.

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Anomalous Field Dependence of Magnetic Penetration Depth in the Vortex State ofCeRu2Probed by Muon Spin Rotation

Cited by 22 publications

References 12 publications

The Physics of Pair-Density Waves: Cuprate Superconductors and Beyond

The Physics of Pair-Density Waves: Cuprate Superconductors and Beyond

Resonance in-plane magnetic field effect as a means to reveal the Fulde-Ferrell-Larkin-Ovchinnikov state in layered superconductors

Interesting normal state and superconducting properties of the intermediate valence compound CeRu2

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