Low-temperature properties of two interacting magnetic impurities
نویسندگان
چکیده
منابع مشابه
Low Temperature Properties of Anisotropic Superconductors with Kondo Impurities
We present a self-consistent theory of superconductors in the presence of Kondo impurities, using large-N slave-boson methods to treat the impurity dynamics. The technique is tested on the s-wave case and shown to give good results compared to other methods for TK > Tc. We calculate low temperature thermodynamic and transport properties for various superconducting states, including isotropic s-...
متن کاملLow-temperature magnetic properties of greigite (Fe3S4)
[1] We provide comprehensive low-temperature magnetic results for greigite (Fe3S4) across the spectrum from superparamagnetic (SP) to multidomain (MD) behavior. It is well known that greigite has no lowtemperature magnetic transitions, but we also document that it has strong domain-state dependence of magnetic properties at low temperatures. Blocking of SP grains and increasing thermal stabilit...
متن کاملKondo temperature of magnetic impurities at surfaces.
Based on the experimental observation that only the close vicinity of a magnetic impurity at metal surfaces determines its Kondo behavior, we introduce a simple model which explains the Kondo temperatures observed for cobalt adatoms at the (111) and (100) surfaces of Cu, Ag, and Au. Excellent agreement between the model and scanning tunneling spectroscopy experiments is demonstrated. The Kondo ...
متن کاملMagnetic properties of interacting disordered electron systems in two dimensions
We compute the magnetic susceptibilities of interacting electrons in the presence of disorder on a twodimensional square lattice by means of quantum Monte Carlo simulations. Clear evidence is found that at sufficiently low temperatures disorder can lead to an enhancement of the ferromagnetic susceptibility. We show that it is not related to the transition from a metal to an Anderson insulator i...
متن کاملRenormalization group treatment of two interacting magnetic impurities in a metal
We consider two resonant level impurities, each of which hybridizes with, and has an attractive interaction with, an electron band (in such a way as to mimic the Kondo effect). They interact with each other via a hopping matrix element and an interaction between the localized fermions (so as to resemble the RKKY interaction between the impurities). We obtain the momentum space RG equations for ...
متن کاملذخیره 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: Physica B: Condensed Matter
سال: 1990
ISSN: 0921-4526
DOI: 10.1016/0921-4526(90)90264-u