Two-channel orbital Kondo effect in a quantum dot with SO(n) symmetry

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Orbital and spin Kondo effects in a double quantum dot

– Motivated by recent experiments, in which the Kondo effect has been observed for the first time in a double quantum-dot structure, we study electron transport through a system consisting of two ultrasmall, capacitively-coupled dots with large level spacing and charging energy. Due to strong interdot Coulomb correlations, the Kondo effect has two possible sources, the spin and orbital degenera...

متن کامل

Quantum dot in a two-dimensional topological insulator: The two-channel Kondo fixed point

Citation Law, K. T. et al. " Quantum dot in a two-dimensional topological insulator: The two-channel Kondo fixed point. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matt...

متن کامل

Non-crossing Approximation Study of Multi-orbital Kondo Effect in Quantum Dot Systems

We study the three-orbital Kondo effect in quantum dot (QD) systems by applying the non-crossing approximation to the three-orbital Anderson impurity model. By investigating the tunneling conductance through a QD, we show that the competition between the Hund-coupling and the orbital level-splitting gives rise to characteristic behavior in transport properties. It is found that the Hund-couplin...

متن کامل

Possibility of Two - channel Spin 12 Kondo Conductance in a Quantum Dot

PACS. 71.10.Ay – Fermi-liquid theory and other phenomenological models. Abstract. – By combining exact diagonalization with scaling method, we show that it is possible to realize two channel spin 1 2 Kondo (2CK) conductance in a quantum dot at Coulomb Blockade, with an odd number of electrons and with contacts in a pillar configuration, as an applied orthogonal magnetic field B is tuned at an a...

متن کامل

Two-stage Kondo effect in a quantum dot at a high magnetic field.

We report a strong Kondo effect (Kondo temperature approximately 4 K) at high magnetic field in a selective area growth semiconductor quantum dot. The Kondo effect is ascribed to a singlet-triplet transition in the ground state of the dot. At the transition, the low-temperature conductance approaches the unitary limit. Away from the transition, for low bias voltages and temperatures, the conduc...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physical Review B

سال: 2013

ISSN: 1098-0121,1550-235X

DOI: 10.1103/physrevb.88.125102