Four-Fold Anisotropy of the Parallel Upper Critical Magnetic Field in a Pure Layered d-Wave Superconductor at T = 0

Lebed, A. G.; Sepper, Otar

doi:10.1134/s0021364020040037

Cited by 6 publications

(4 citation statements)

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“…[23][24][25][26][27][28], it has also to restore superconductivity in very high magnetic fields due to quantum effects of the Bragg reflections from boundaries of the Brillouin zone. In this Letter, we consider the so-called quasi-classical parallel orbital upper critical magnetic field [29,16,30], H (0), which destroys superconductivity in Q2D superconductors at low temperatures in an intermediate region of the fields.…”

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confidence: 99%

“…[23][24][25][26][27][28]). As we already mentioned, below we calculate the so-called quasiclassical upper critical magnetic field [29,16,30] and, thus, do not take into account possible stabilization of superconductors in very high magnetic fields [23][24][25][26][27][28], which is possibly observed in the Q2D superconductor UTe 2 .…”

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confidence: 99%

“…As mentioned before, below, we study the quasi-classical case, where, as shown in Refs. [16] and [30], it is possible to take into account only linear term with respect to magnetic field. As a result, we obtain:…”

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confidence: 99%

“…( 31) and ( 32) is different from that in Refs. [16,30], since in this Letter we consider twocomponent superconducting gap. To obtain the parallel upper critical field for Eq.…”

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A Chiral Triplet Quasi-Two-Dimensional Superconductor in a Parallel Magnetic Field

Lebed

2022

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We calculate the parallel upper critical magnetic field H (0) for an in-plane isotropic quasi-twodimensional (Q2D) chiral triplet superconductor at zero temperature, T = 0. In particular, the ratio H (0)/(|dH GL /dT |T =Tc Tc) = 0.815 is defined, where |dH GL /dT |T =Tc is the so-called Ginzburg-Landau slope of the upper critical magnetic field, Tc is a superconducting transition temperature at H = 0. We show that the theoretically obtained above mentioned value strongly contradicts to the experimentally measured ones in a candidate for a chiral triplet superconductivity Sr2RuO4, which provides one more argument against the chiral triplet scenario of superconductivity in this compound. Our results may be useful for establishing chiral triplet superconductivity in other Q2D candidates for this phenomenon.

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confidence: 99%

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confidence: 99%

“…( 31) and ( 32) is different from that in Refs. [16,30], since in this Letter we consider twocomponent superconducting gap. To obtain the parallel upper critical field for Eq.…”

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confidence: 99%

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