Spin correlation in dilute magnetic alloys

✍ Scribed by H. Ishii

• Book ID: 104627718
• Publisher: Springer US
• Year: 1978
• Tongue: English
• Weight: 351 KB
• Volume: 32
• Category: Article
• ISSN: 0022-2291
• DOI: 10.1007/bf00117963

✦ Synopsis

The spin correlation density of conduction electrons with an impurity spin is calculated at T->O for the degenerate orbital case of the Anderson model on the basis of the }ramada and Yosida theory. The leading term at long distance falls off as r-S[ I + cos (2kpr + 28)], keeping a negative sign. For the case of electron-hole symmetry, the next leading term is obtained, which allows us to evaluate the lower limit ~ of the range for which the r -4 term is dominant. ~ is shown to be proportional to the spin susceptibility. Most of the correlation is contained in the sphere of radius ~, which can be considered as the spatial extension of the singlet state.