Kondo effect: How gold with a small amount of what were probably iron impurities behaves at low temperaturesJun Kondo
In physics, the Kondo effect describes the scattering of conduction electrons in a metal due to magnetic impurities, resulting in a characteristic change i.e. a minimum in electrical resistivity with temperature.[1]
The cause of the effect was first explained by Jun Kondo, who applied third-order perturbation theory to the problem to account for scattering of s-orbital conduction electrons off d-orbital electrons localized at impurities (Kondo model). Kondo's calculation predicted that the scattering rate and the resulting part of the resistivity should increase logarithmically as the temperature approaches 0 K.[2] Extended to a lattice of magnetic impurities, the Kondo effect likely explains the formation of heavy fermions and Kondo insulators in intermetallic compounds, especially those involving rare earth elements such as cerium, praseodymium, and ytterbium, and actinide elements such as uranium. The Kondo effect has also been observed in quantum dot systems.
^Hewson, Alex C; Jun Kondo (2009). "Kondo effect". Scholarpedia. 4 (3): 7529. Bibcode:2009SchpJ...4.7529H. doi:10.4249/scholarpedia.7529.
^Kondo, Jun (1964). "Resistance Minimum in Dilute Magnetic Alloys". Progress of Theoretical Physics. 32 (1): 37–49. Bibcode:1964PThPh..32...37K. doi:10.1143/PTP.32.37.
In physics, the Kondoeffect describes the scattering of conduction electrons in a metal due to magnetic impurities, resulting in a characteristic change...
Marie Kondo (近藤 麻理恵, Kondō Marie, pronounced [kondoː maɾie], born 9 October 1984), also known as Konmari (こんまり), is a Japanese organizing consultant, author...
Up with Marie Kondo is a reality television series developed for Netflix and released on January 1, 2019. The show follows Marie Kondo, a Japanese organizing...
Schrieffer–Wolff transformation. Anderson impurity model Kondoeffect Hewson, Alex C; Jun Kondo (2009). "Kondoeffect". Scholarpedia. 4 (3): 7529. Bibcode:2009SchpJ...
(mostly f-electrons) with conduction electrons, a correlation effect known as the Kondoeffect. As a consequence, a transition from metallic behavior to insulating...
Koji Kondo (Japanese: 近藤 浩治, Hepburn: Kondō Kōji, August 13, 1961) is a Japanese music composer, pianist, and sound director for the video game company...
Anderson in Physics Today. In 1930s, material scientists discovered the Kondoeffect, where the resistivity of nominally pure gold reaches a minimum at 10...
vibrations term and ln 1 T {\displaystyle \ln {\frac {1}{T}}} the Kondoeffect. When analyzing the response of materials to alternating electric fields...
are attracted by a magnetic field. Diamagnetism is a quantum mechanical effect that occurs in all materials; when it is the only contribution to the magnetism...
net magnetization should be zero at a temperature of absolute zero, the effect of spin canting often causes a small net magnetization to develop, as seen...
problems, most notably the description of superconductivity and the Kondoeffect. After World War II, several ideas from quantum field theory were applied...
It is often applied to the description of Kondoeffect-type problems, such as heavy fermion systems and Kondo insulators[citation needed]. In its simplest...
are all added up to find the total value of the diagram. Spin Hall effectKondoeffect Keldysh, Leonid (1965). "Diagram technique for nonequilibrium processes"...
407–427. ISBN 978-2-88124-300-4. Weller, D.; Moser, A. (1999). "Thermal Effect Limits in Ultrahigh Density Magnetic Recording". IEEE Transactions on Magnetics...
of point defects within a material. It has also been found that the Kondoeffect within graphene can be tuned due to a complex relationship between grain...
voltage, or magnetic field. The effect is known as a Mott transition and can be used to build smaller field-effect transistors, switches and memory devices...
nanometre to 1 micrometre. Some colloids are translucent because of the Tyndall effect, which is the scattering of light by particles in the colloid. Other colloids...
magnetism have been distinguished. Ferromagnetism (along with the similar effect ferrimagnetism) is the strongest type and is responsible for the common...
weak. It typically requires a sensitive analytical balance to detect the effect and modern measurements on paramagnetic materials are often conducted with...
tend to increase, while at the same time, fluctuations also increase. This effect is supported by many experiments and observations of groups of people, mice...
interface because of the surface plasmon resulting in a non-linear optical effect. This larger signal is often exploited to produce a stronger second harmonic...
Global Information
