Journal ArticleDOI
The spatial distribution of magnetisation density in Mn5Ge3
J B Forsyth,P J Brown +1 more
TLDR
The spatial distribution of magnetisation density in the intermetallic compound Mn5Ge3 has been determined from a polarised neutron diffraction single-crystal study at 4.2 K.Abstract:
The spatial distribution of magnetisation density in the intermetallic compound Mn5Ge3 has been determined from a polarised neutron diffraction single-crystal study at 4.2 K. The positional and thermal parameters of the structure were derived from an unpolarised neutron study at 60 K, which also served to characterise the extinction in the material. The observed magnetic structure factors were fitted by a multipole expansion based on free-atom form factors for each of the two crystallographically inequivalent manganese atoms in the unit cell. The magnetic moment of the Mn1 atom with site symmetry 32 is 1.96(3) mu B and that of Mn2 with site symmetry mm is 3.23(2) mu B. The radial form factor of the Mn1 atom is found to be significantly contracted relative to that of a free Mn2+ ion. Evidence is presented that Mn-Mn interactions are the major factor leading to the difference in the moments on the two sites.read more
Citations
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Journal ArticleDOI
Linear magnetization dependence of the intrinsic anomalous Hall effect.
TL;DR: The intrinsic anomalous Hall conductivity depends linearly on the magnetization, which can be understood from the long-wavelength fluctuations of the spin orientation at finite temperatures.
Journal ArticleDOI
Epitaxial ferromagnetic Mn5Ge3 on Ge(111)
Changgan Zeng,Steven C. Erwin,Leonard C. Feldman,An-Ping Li,Rongying Jin,Yuan-Jun Song,James R Thompson,James R Thompson,H. H. Weitering,H. H. Weitering +9 more
TL;DR: Ferromagnetic Mn5Ge3 thin films were grown on Ge(111) with solid phase epitaxy as mentioned in this paper, which exhibit metallic conductivity and strong ferromagnetism up to the Curie temperature.
Journal ArticleDOI
Spinodal nanodecomposition in semiconductors doped with transition metals
Tomasz Dietl,Kazunori Sato,Tetsuya Fukushima,Alberta Bonanni,Matthieu Jamet,A. Barski,Shinji Kuroda,Masaaki Tanaka,Pham Nam Hai,Hiroshi Katayama-Yoshida +9 more
TL;DR: In this paper, the authors present the recent progress in computational materials design, experimental realization, and control methods of spinodal nanodecomposition under three and two-dimensional crystal growth conditions in spintronic materials, such as magnetically doped semiconductors.
Journal ArticleDOI
Structural and magnetic properties of Mn5Ge3 clusters in a dilute magnetic germanium matrix
C. Bihler,C. Jaeger,T. Vallaitis,M. Gjukic,Martin S. Brandt,Eckhard Pippel,J. Woltersdorf,Ulrich Gösele +7 more
TL;DR: In this article, the structural and magnetic properties of low-temperature molecular-beam epitaxy grown Ge:Mn were characterized by means of high-resolution transmission electron microscopy (HR-TEM), energy dispersive x-ray spectroscopy, and superconducting quantum interference device (SQUID) magnetometry.
Journal ArticleDOI
First-principles characterization of ferromagnetic Mn 5 Ge 3 for spintronic applications
TL;DR: In this paper, the authors focus on the intermetallic ferromagnetic compound and perform accurate first-principles full-potential linearized augmented plane wave calculations within density functional theory.
References
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Journal ArticleDOI
Extinction within the limit of validity of the Darwin transfer equations. I. General formalism for primary and secondary extinction and their applications to spherical crystals
P. J. Becker,Philip Coppens +1 more
TL;DR: In this article, a theory of extinction within the limit of the Darwin intensity transfer equations is derived, which differs from the equation given by Zachariasen because independent coordinates x1 and x2 based on an external coordinate system have been used, rather than the coordinates t1 and t2 which are only mutually independent if the crystal is a parallelepiped with faces parallel to the incident and diffracted beams.
Journal ArticleDOI
Hartree–Fock atomic scattering factors for the iron transition series
R.E. Watson,A.J. Freeman +1 more
TL;DR: In this article, the Hartree-Fock wave function was used to determine the spatial symmetry of the outer electrons of the argon core, and the question of the constancy of the core was discussed quantitutively.
Journal ArticleDOI
Magnetic Structure of α-Mn
TL;DR: In this article, a neutron diffraction study has been made on single crystal specimens of α-Mn at 4.4°K, 60°K and several other temperatures.
Journal ArticleDOI
Electronic exchange and the Mössbauer effect in iron-based interstitial compounds
TL;DR: In this article, the average hyperfine field to average moment ratio is the same for iron-based interstitial compounds with cementite structure, and the effects of the interstitials appear to be mainly local.
Journal ArticleDOI
The magnetic and chemical ordering of the heusler alloys Pd2MnIn, Pd2MnSn and Pd2MnSb
P. J. Webster,R. S. Tebble +1 more
TL;DR: The magnetic and crystallographic structures of the alloys Pd2MnIn, Pd 2MnSn and Pd 1MnSb are described in this paper.