By K. Baberschke, M. Donath, W. Nolting
Written via prime specialists within the box of band-ferromagnetism, this ebook is meant to provide a standing document on our knowing of this complex and interesting challenge of sturdy country physics. smooth advancements are awarded and defined in an educational type, emphasizing the decisive principles and the recent themes of present and destiny study on band-ferromagnetism. The authors contain experimentalists and theoreticians engaged on various features of magnetism and making use of a number of innovations. specifically, they deal with the next 5 vital topics: Ground-State houses, Finite-Temperature digital constitution, types of Band-Ferromagnetism, Low-Dimensional platforms, realizing Spectroscopies. The ebook might be of gain to scholars and researchers alike.
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Extra resources for Band-Ferromagnetism (LNP 580)
Callaway, Phys. Rev. B 15, 298 (1977). 45. P. Wohlfahrt in Handbook of Magnetic Materials 1, ed. P. Wohlfarth (North Holland, Amsterdam, 1980). 46. C. Tsui, Phys. Rev. 164, 561 (1967). 47. O. Jepsen, J. K. Andersen, Phys. Rev. B 26, 2790 (1982). 48. F. W. L. Davis, Phys. Rev. B 21, 4118 (1980). 49. A. Liebsch, Phys. Rev. B 23, 5203 (1981). 50. A. L. Fetter and J. D. Walecka, Quantum Theory of Many-Particle Systems (McGraw–Hill, New York, 1971). 51. E. M¨ uller-Hartmann, Z. Phys. B 74, 507 (1989); ibid.
We ﬁnd ∆t2g ≈ 3∆eg ≈ 800 meV. 6, when |Φ0 opt is reached. This also implies that the width of the majority spin bands is about 10% bigger than that of the (higher lying) minority spin bands. It causes a further reduction of the exchange splittings of states near EF , especially for those with strong t2g character. 74 eV splitting of X3 . 4 eV, respectively , so that an exchange splitting near the bottom of the d bands could, so far, not be observed experimentally. The large anisotropy may originate from peculiarities special to Ni with its almost completely ﬁlled d bands and its fcc lattice structure.
Wilhelm, P. Poulopoulos, P. Srivastava, H. Wende, M. Farle, K. Baberschke, M. Angelakeris, N. K. Flevaris, W. -P. Kappler, G. Ghiringhelli, N. B. Brookes: Phys Rev. B 61, 8647 (2000) 45. A. L. Ankudinov, A. I. Nesvizhskii, J. J. Rehr: J. Synchroton Rad. 8, XXX (2001) 46. A. I. Nesvizhskii, A. L. Ankudinov, J. J. Rehr, K. Baberschke: Phys Rev. A. D¨ urr Institut f¨ ur Festk¨ orperforschung, Forschungszentrum J¨ ulich, 52425 J¨ ulich, Germany Abstract. The description of the itinerant ferromagnetic ground state in terms of a bandstructure approach has been very successful in providing detailed information about valence-band exchange splitting, quasiparticle eﬀects, etc.