闲逛
发表于 2025-3-23 13:04:03
Introduction,t due to quantum exchange effects, and leads to the appearance of spontaneous magnetic ordering. The values of such exchange interactions between spin moments are defined by the character of the electron wavefunction, i.e. by chemical bonding effects.
EXPEL
发表于 2025-3-23 14:00:03
http://reply.papertrans.cn/63/6214/621397/621397_12.png
治愈
发表于 2025-3-23 20:44:26
Exchange Interactions in Metals,1]. Recently substantial progress has been made in the description of the magnetic properties of transition metals. Due to correlation effects, as in the Anderson model, metal atoms can attain local magnetic moments, and the type of their ordering will be defined by exchange interactions.
Innovative
发表于 2025-3-24 01:49:02
http://reply.papertrans.cn/63/6214/621397/621397_14.png
半球
发表于 2025-3-24 05:32:33
Superexchange Interaction in Magnetic Insulators,s are generally considered as typical examples of systems where magnetic properties are determined by strongly localized . states of transition-metal atoms. In the crystal lattices of such compounds, cation atoms which carry magnetic moments have non-magnetic ligand atoms as their nearest neighbours
adroit
发表于 2025-3-24 09:37:26
Localized Magnetic Moments of Impurities in Metals,atially extended electron states, which form conduction bands. The existence of localized magnetic moments which is quite common in 3. element-based magnetic insulators (Chap. 2), appears in the present case merely as one of several possible types of magnetic behaviour of the system. As a rule, the
骗子
发表于 2025-3-24 14:05:31
http://reply.papertrans.cn/63/6214/621397/621397_17.png
包租车船
发表于 2025-3-24 15:17:02
Ab Initio Approaches to the Electronic Structure of Magnetic Crystals,al picture of interactions taken into account and, in some cases, an analytical solution), such model approaches have some significant drawbacks. The drawbacks become very prominent when one tries to explain or to predict the properties of real chemical compounds. Here one encounters large uncertain
有其法作用
发表于 2025-3-24 22:03:26
Results of Band-Structure Calculations for Transition Metals and Their Compounds,ge classes of magnetic crystals that it is infeasible to review all of them. Instead, in the next two chapters we discuss some representative examples, which illustrate both the possibilities of direct numerical calculations of the electronic structure of magnetic crystals and give an idea of the re
Nmda-Receptor
发表于 2025-3-25 00:38:54
http://reply.papertrans.cn/63/6214/621397/621397_20.png