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Excess heat capacity in magnetically ordered Ce heavy fermion metals

Autor: Scheie, A., Liu, Yu, Ghioldi, E. A., Fender, S., Rosa, P. F. S., Bauer, E. D., Zhu, Jian-Xin, Ronning, F.

Publikováno v: Phys. Rev. B 110, 085123 (2024)

We study the magnetic heat capacity of a series of magnetically ordered Ce-based heavy fermion materials, which show an anomalous $T^3$ heat capacity in excess of the phonon contribution in many materials. For compounds for which magnon models have b

Externí odkaz: http://arxiv.org/abs/2401.10718

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Single-component superconducting state in UTe2 at 2 K

Autor: Rosa, P. F. S., Weiland, A., Fender, S. S., Scott, B. L., Ronning, F., Thompson, J. D., Bauer, E. D., Thomas, S. M.

Publikováno v: Communications Materials 3, 33 (2022)

UTe2 is a newly-discovered unconventional superconductor wherein multicomponent topological superconductivity is anticipated based on the presence of two superconducting transitions and time-reversal symmetry breaking in the superconducting state. Th

Externí odkaz: http://arxiv.org/abs/2110.06200

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Narrow-gap semiconducting behavior in antiferromagnetic Eu$_{11}$InSb$_9$

Autor: Fender, S. S., Thomas, S. M., Ronning, F., Bauer, E. D., Thompson, J. D., Rosa, P. F. S.

Here we investigate the thermodynamic and electronic properties of Eu$_{11}$InSb$_9$ single crystals. Electrical transport data show that Eu$_{11}$InSb$_9$ has a semiconducting ground state with a relatively narrow band gap of $320$~meV. Magnetic sus

Externí odkaz: http://arxiv.org/abs/2107.13145

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Spatially inhomogeneous superconductivity in UTe2

Autor: Thomas, S. M., Stevens, C., Santos, F. B., Fender, S. S., Bauer, E. D., Ronning, F., Thompson, J. D., Huxley, A., Rosa, P. F. S.

Newly-discovered superconductor UTe$_2$ is a strong contender for a topological spin-triplet state wherein a multi-component order parameter arises from two nearly-degenerate superconducting states. A key issue is whether both of these states intrins

Externí odkaz: http://arxiv.org/abs/2103.09194

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