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Electronic transport in submicrometric channels at the LaAlO3/SrTiO3 interface
Boselli M, Scheerer G, Filippone M, Luo W, Waelchli A, Kuzmenko A, Gariglio S, Giamarchi T, Triscone J-M.

Physical review. B. 2021;103:075431

Nanoscale channels realized at the conducting interface between LaAlO3 and SrTiO3 provide a perfect playground to explore the effect of dimensionality on the electronic properties of complex oxides. Here we compare the electric transport properties of devices realized using the atomic force…

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Interband plasmon polaritons in magnetized charge-neutral graphene
Slipchenko TM, Poumirol J-M, Kuzmenko A, Nikitin AY, Martín-Moreno L.

Communications physics. 2021;4(1):110

Studying the collective excitations in charge neutral graphene (CNG) has recently attracted a great interest because of unusual mechanisms of the charge carrier dynamics. The latter can play a crucial role for formation of recently observed in twisted bilayer CNG graphene plasmon polaritons (GPPs)…

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Nanoinfrared Characterization of Bilayer Graphene Conductivity under Dual-Gate Tuning
Luo W, Kuzmenko A, Qi J, Zhang N, Wu W, Ren M, Zhang X, Cai W, Xu J.

Nano letters . 2021;21(12):5151-5157

Dual-gate tuning on two-dimensional (2D) heterostructures can provide independent control of the carrier concentration and interlayer electrostatic potential, yielding novel electronic and optical properties. In this paper, by utilizing monolayer graphene as both the top gate and a plasmon…

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Raman spectroscopic evidence for multiferroicity in rare earth nickelate single crystals
Ardizzone I, Teyssier J, Crassee I, Kuzmenko A, Mazzone DG, Gawryluk DJ, Medarde M, Van Der Marel D.

Physical Review Research. 2021;3(033007)

The rare earth nickelates RNiO3 are metallic at high temperatures and insulating and magnetically ordered at low temperatures. The low temperature phase has been predicted to be type II multiferroic, i.e., ferroelectricand magnetic order are coupled and occur simultaneously. Confirmation of those…

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Spectral weight of hole-doped cuprates across the pseudogap critical point
Michon B, Kuzmenko A, Tran M, Mc Elfresh BR, Komiya S, Ono S, Uchida S, Van Der Marel D.

Physical review research. 2021;3(4):043125

One of the most widely discussed features of the cuprate high-Tc superconductors is the presence of a pseudogap in the normal state. Recent transport and specific heat measurements have revealed an abrupt transition at the pseudogap critical point, denoted p∗, characterized by a drop in carrier…

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Ultracompact Binary Permanent Rare-Earth Magnet with 1.25-T Center Field and Fast-Decaying Stray Field
Poumirol J-M, Bercher A, Slipchenko T, Maggio-Aprile I, Renner C, Kuzmenko A.

Physical review applied . 2021;16(4):044012

We present a very-compact bicomponent-permanent-magnet design capable of generating 1.25 T in a small volume, significantly above the 0.6 T available from a single uniformly magnetized permanent magnet. In addition to the enhanced maximum field, our design drastically limits the stray field present …

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