On the ground states of some s-d exchange Kondo Hamiltonians
On the ground states of some s-d exchange Kondo Hamiltonians
复制标题
一些 s-d 交换近藤哈密顿量的基态
DOI：
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发表时间：
1980
期刊：
影响因子：
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通讯作者：
P. Nozières
中科院分区：
文献类型：
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作者：
D. M. Cragg;P. Lloyd;P. Nozières
重整化群计算表明，任意数学近藤哈密顿量的基态一般不是零自旋态。只有当适当耦合的散射通道的数量和杂质自旋的大小之间存在特殊关系时，才会出现S=0状态。对杂质自旋形成的物理基础的研究和对一个模型例子的数值计算表明，真实的自旋杂质可以满足这些条件。
Renormalisation-group calculations show that the ground state of an arbitrary mathematical Kondo Hamiltonian is not a state of zero spin in general. An S=0 state only occurs when special relations exist between the number of suitably coupled scattering channels and the magnitude of the impurity spin. A study of the physics underlying the formation of an impurity spin, and numerical calculations on a model example, show that these conditions may be satisfied by real spin impurities.