Results 11 to 20 of about 24,938,009 (319)
Topological symplectic Kondo effect [PDF]
Physical review B, 2022 Multiple conduction channels interacting with a quantum impurity -- a spin in the conventional ``multi-channel Kondo effect'' or a topological mesoscopic device (``topological Kondo effect'') -- has been proposed as a platform to realize anyonic quasi ...
Guang-Jie Li, E. König, J. Väyrynen
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Multichannel Topological Kondo Effect [PDF]
Physical Review Letters, 2023 A Coulomb blockaded $M$-Majorana island coupled to normal metal leads realizes a novel type of Kondo effect where the effective impurity "spin" transforms under the orthogonal group $SO(M)$. The impurity spin stems from the non-local topological ground state degeneracy of the island and thus the effect is known as the topological Kondo effect.
Guangjie Li +2 more
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Inducing ferromagnetism and Kondo effect in platinum by paramagnetic ionic gating. [PDF]
Sci Adv, 2018 Platinum thin film becomes ferromagnetic when under a large electric field and in proximity to local magnetic moments. Electrically controllable magnetism, which requires the field-effect manipulation of both charge and spin degrees of freedom, has ...
Liang L +7 more
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The Kondo Effect in the Unitary Limit [PDF]
Science, 2000 We observe a strong Kondo effect in a semiconductor quantum dot when a small magnetic field is applied. The Coulomb blockade for electron tunneling is overcome completely by the Kondo effect, and the conductance reaches the unitary limit value. We compare the experimental Kondo temperature with the theoretical predictions for the spin-½ Anderson ...
van der Wiel, W. G. +5 more
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Non-Hermitian Kondo Effect in Ultracold Alkaline-Earth Atoms [PDF]
Physical Review Letters, 2018 We investigate the Kondo effect in an open quantum system, motivated by recent experiments with ultracold alkaline-earth(-like) atoms. Because of inelastic collisions and the associated atom losses, this system is described by a complex-valued Kondo ...
Masahito Ueda, Masaya Nakagawa
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From four- to two-channel Kondo effect in junctions of XY spin chains [PDF]
Nuclear Physics B, 2016 We consider the Kondo effect in Y-junctions of anisotropic XY models in an applied magnetic field along the critical lines characterized by a gapless excitation spectrum.
Domenico Giuliano +3 more
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Nonequilibrium Kondo effect in a graphene-coupled quantum dot in the presence of a magnetic field [PDF]
Beilstein Journal of Nanotechnology, 2020 Background: Quantum dots connected to larger systems containing a continuum of states like charge reservoirs allow the theoretical study of many-body effects such as the Coulomb blockade and the Kondo effect.Results: Here, we analyze the nonequilibrium ...
Levente Máthé, Ioan Grosu
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Conformal field theory analysis of the QCD Kondo effect [PDF]
Physical Review D, 2018 We study non-perturbative aspects of QCD Kondo effect, which has been recently proposed for the finite density and strong magnetic field systems, using conformal field theory describing the low energy physics near the IR fixed point.
Taro Kimura, S. Ozaki
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Laser-irradiated Kondo insulators: Controlling the Kondo effect and topological phases [PDF]
Physical Review B, 2017 We investigate theoretically the nature of laser-irradiated Kondo insulators. Using Floquet theory and the slave-boson approach, we study a periodic Anderson model and derive an effective model that describes laser-irradiated Kondo insulators.
Kazuaki Takasan, Masaya Nakagawa
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Observation of Kondo cloud-coupling in a mirror-symmetric carbon nanotube array-molybdenum structure [PDF]
Nature CommunicationsMagnetic impurities in a non-magnetic metal are screened by conduction electrons, forming a spin cloud known as a Kondo cloud. Experimental detection of this Kondo screening cloud in dilute magnetic alloys remains challenging.
Zheng Wei +13 more
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