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Magnetic penetration depth in unconventional superconductors
This topical review summarizes various features of magnetic penetration depth in unconventional superconductors. Precise measurements of the penetration depth as a function of temperature, magnetic…
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Beyond triplet: Unconventional superconductivity in a spin-3/2 topological semimetal
TLDR
A k ⋅ p model of the j = 3/2 fermions is proposed to explain how a dominant J = 3 septet pairing state is the simplest solution that naturally produces nodes in the mixed even-odd parity gap, and has strong potential for leading the development of a new series of topological superconductors.
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Magnetic irreversibility and the Verwey transition in nanocrystalline bacterial magnetite
The magnetic properties of biologically-produced magnetite nanocrystals biomineralized by four different magnetotactic bacteria were compared to those of synthetic magnetite nanocrystals and large,…
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Protein‐Mediated Synthesis of Uniform Superparamagnetic Magnetite Nanocrystals
Magnetite nanocrystals are synthesized in the presence of a recombinant Mms6 protein thought to be involved in the biomineralization of bacterial magnetite magnetosomes, the mammalian iron‐storage…
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Novel magnetic nanomaterials inspired by magnetotactic bacteria: Topical review
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Meissner-London state in superconductors of rectangular cross section in a perpendicular magnetic field
The distribution of magnetic induction in Meissner state with finite London penetration depth is analyzed for platelet samples of rectangular cross-section in a perpendicular magnetic field. The…
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Uniaxial-strain mechanical detwinning of CaFe 2 As 2 and BaFe 2 As 2 crystals : Optical and transport study
M. A. Tanatar,1,*,† E. C. Blomberg,1,2 A. Kreyssig,1 M. G. Kim,1,2 N. Ni,1,2 A. Thaler,1,2 S. L. Bud’ko,1,2 P. C. Canfield,1,2 A. I. Goldman,1,2 I. I. Mazin,3 and R. Prozorov1,2,*,‡ 1Ames Laboratory,…
Cobalt ferrite nanocrystals: out-performing magnetotactic bacteria.
TLDR
This new synthesis pathway enables facile room-temperature shape-specific synthesis of complex magnetic crystalline nanomaterials with particle sizes in the range of 40-100 nm that are difficult to produce using conventional techniques.
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Superfluid density and specific heat within a self-consistent scheme for a two-band superconductor
The two gaps in a two-band clean $s$-wave superconductor are evaluated self-consistently within the quasiclassical Eilenberger weak-coupling formalism with two in-band and one interband pairing…
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Penetration depth study of superconducting gap structure of 2H-NbSe2.
TLDR
Measurements of the temperature dependence of both in-plane and out-of-plane penetration depths in 2H-NbSe2 suggest that the gap structure is not simply related to the weak electron-phonon coupling on the Se sheet and is therefore important for microscopic models of anisotropic superconductivity in this compound.
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