Journal ArticleDOI
The relationship between field-cooled and zero-field-cooled susceptibilities of some ordered magnetic systems
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TLDR
In this paper, the irreversible field-cooled (FC) and the zero-field cooled (ZFC) magnetic susceptibilities of one ferrimagnetic and three ferromagnetic systems, measured at different applied magnetic fields, were analyzed and it was shown that the irreversibility indicated by the difference between the FC and ZFC susceptibilities arises from magnetic anisotropy.Abstract:
Analysis of the irreversible field-cooled (FC) and the zero-field-cooled (ZFC) magnetic susceptibilities of one ferrimagnetic and three ferromagnetic systems, measured at different applied magnetic fields, shows that the irreversibility indicated by the difference between the FC and the ZFC susceptibilities arises from magnetic anisotropy. The two susceptibilities are related to each other through the coercivity which is a measure of the anisotropy. The ZFC susceptibility can be calculated from the FC susceptibility (or vice versa) and the coercivity.read more
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Magnetic nanoparticles: preparation, structure and properties
TL;DR: In this paper, the key methods for the preparation of magnetic nanoparticles are described systematically and the experimental data on their properties are analyzed and generalised, as well as the main theoretical views on the magnetism of nanoparticles were considered.
Journal ArticleDOI
Superparamagnetic Relaxation and Magnetic Anisotropy Energy Distribution in CoFe2O4 Spinel Ferrite Nanocrystallites
TL;DR: In this article, a temperature-dependent decay of magnetization is used to study superparamagnetism in magnetic nanoparticles, and the magnetic anisotropy is clearly the origin of the divergence in the field-cooled and zero-fieldcooled magnetization measurements.
Journal ArticleDOI
Ferromagnetic van der Waals Crystal VI3.
Shangjie Tian,Jian-Feng Zhang,Chenghe Li,Tianping Ying,Shiyan Li,Xiao Zhang,Kai Liu,Hechang Lei +7 more
TL;DR: Analysis of van der Waals crystal VI3 reveals that it exhibits a structural transition from monoclinic C2/ m to rhombohedral R3̅ at Ts ≈ 79 K, similar to CrX3, and is a candidate for two-dimensional FM semiconductors.
Journal ArticleDOI
New diluted ferromagnetic semiconductor with Curie temperature up to 180 K and isostructural to the ‘122’ iron-based superconductors
Kan Zhao,Zhenghao Deng,Xiongjun Wang,W. Han,J. L. Zhu,Xiang Li,Qiufeng Liu,Rencheng Yu,Tatsuo Goko,Benjamin A. Frandsen,Lian Liu,Fanlong Ning,Fanlong Ning,Yasutomo J. Uemura,Hanna Dabkowska,Graeme Luke,Hubertus Luetkens,Elvezio Morenzoni,Sarah Dunsiger,Anatoliy Senyshyn,Peter Böni,Changqing Jin +21 more
TL;DR: The synthesis of a new diluted magnetic semiconductor is reported, which is isostructural to the 122 iron-based superconductors with the tetragonal ThCr( 2)Si(2) (122) structure, which makes them promising for the development of multilayer functional devices.
Journal ArticleDOI
Enhanced magnetic properties of dy3+ substituted ni-cu-zn ferrite nanoparticles
Sagar E. Shirsath,R.H. Kadam,Sunil M. Patange,Maheshkumar L. Mane,Ali Ghasemi,Akimitsu Morisako +5 more
TL;DR: Dy3+ substituted Ni-Cu-Zn (Ni0.4Cu 0.4Zn 0.2DyxFe2−xO4) ferrite nanoparticles were obtained at 600°C by synthesizing sol-gel auto-combustion method, and they exhibit a particle size of 12-21'nm.
References
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Journal ArticleDOI
Spin glasses: Experimental facts, theoretical concepts, and open questions
Kurt Binder,A. P. Young +1 more
TL;DR: In this article, the most characteristic properties of spin glass systems are described, and related phenomena in other glassy systems (dielectric and orientational glasses) are mentioned, and a review summarizes recent developments in the theory of spin glasses, as well as pertinent experimental data.
BookDOI
Spin glasses : an experimental introduction
TL;DR: The phase of condensed matter known as spin glasses has become a vital and productive area of research as mentioned in this paper, and experiment has suggested unusual effects which have brought the theoretical study of the spin glass Problem Onto The Same Footing As The Experimental Study.
Journal ArticleDOI
Spin-Glass Behavior and Magnetic Phase Diagram of La1-xSrxCoO3 ( 0 ≤x ≤0.5) Studied by Magnetization Measurements
TL;DR: In this paper, the spin-glass behavior is attributed to the frustration of random competing exchange interactions, namely the ferromagnetic double-exchange interaction between Co 3+ and Co 4+ and the antiferromagnetic one between like spins.
Journal ArticleDOI
Low temperature synthesis of Ni0.8Zn0.2Fe2O4 powder and its characterization
TL;DR: In this article, a polycrystalline nickel-zinc ferrite powder was obtained by chemical coprecipitation involving the corresponding metal nitrates and sodium hydroxide.