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Most of the magnets we encounter daily are made of “ferromagnetic” materials. The north-south magnetic axes of most atoms in these materials are lined up in the same direction, so their collective for...
Uppsala University in Sweden has been a valuable partner to CERN since the Laboratory’s foundation. In the 1950s, Uppsala, having just constructed its own cyclotron, contributed to the development of ...
In the March 23 issue of the journal Nature Materials, they describe how a magnetic field roughly the size of a medical MRI reduced the amount of heat flowing through a semiconductor by...
Hole digging in ensembles of tunneling molecular magnets
Quantum tunneling magnetic molecules monte carlo simulation tunnel lorentz line shape crystal
2014/12/20
The nuclear spin-mediated quantum relaxation of ensembles of tunneling magnetic molecules causes a “hole” to appear in the distribution of internal fields in the system. The form of this hole and its ...
Reply to “Comment on ‘Hole digging in ensembles of tunneling molecular magnets’ ”
Bias magnetization the molecular rotation the monte carlo simulation magnetization relaxation lattice
2014/12/20
Our work has argued for a particular scaling form governing the distribution M(ξ,t) of magnetization over bias ξ, for a system of dipolar-interacting molecular spins. This form, which was found in Mon...
The main 1/2 magnetization plateau in Shastry-Sutherland magnets:Effect of the long-range Ruderman-Kittel-Kasuya-Yosida interaction
1/2 magnetization plateau Shastry-Sutherland magnets long-range Ruderman-Kittel-Kasuya-Yosida interaction
2016/12/2
The ordering of the classical Ising model on the Archimedean lattice that is topologically equivalent to the Shastry-Sutherland one is studied in order to understand the fascinating magnetic propertie...
Quantum Destruction of Spiral Order in Two Dimensional Frustrated Magnets
Quantum Destruction Spiral Order Two Dimensional Frustrated Magnets
2010/11/25
We study the fate of S = 1/2 spiral ordered two dimensional quantum magnets when disordered
by quantum fluctuations. The topological point defects of the spiral, the Z2 vortices, play a crucial role ...
Issues with J-dependence in the LSDA+U method for non-collinear magnets
first-principles LDA+U non-collinear magnetism magnetocrystalline anisotropy
2010/11/18
We re-examine the commonly used density functional theory plus Hubbard U (DFT+U) method
for the case of non-collinear magnets. While many studies neglect to explicitly include the exchange correction...
Molecular magnets stand in line（图）
Molecular magnets in line conventional electronic circuits
2010/11/30
Researchers in Europe have succeeded in creating molecular magnets capable of adopting a preferred orientation on a gold surface. The result is an important advance for the burgeoning field of spintro...
Infinite disorder scaling of random quantum magnets in three and higher dimensions
Infinite disorder scaling random quantum magnets dimensions
2010/11/11
Using a very efficient numerical algorithm of the strong disorder renormalization group method we have extended the investigations about the critical behavior of the random transverse-field Ising mode...
The spin dynamics of molecular magnets beyond Kubo's linear response theory
nanomagnets spin dynamics Kubo response theory perturbation theory
2010/7/8
The description of quantum dynamics of nanomagnets is a central issue in most applications proposed for those systems. In this paper, we put forward a modified perturbation approach to study the spin ...
Study on cooling process of cryogenic system for superconducting magnets of BEPCⅡ
BEPCⅡ superconducting magnets cryogenic system
2009/8/14
In the upgrade project of the Beijing Electron Positron Collider (BEPCⅡ), three superconducting magnets are employed to realize the goal of two orders of magnitude higher luminosity. A cryogenic syst...
Macroscopic Quantum Coherence in Antiferromagnetic Molecular
Magnets
macroscopic quantum coherence two-sublattice
model antiferromagnetic molecular magnets
2007/8/15
2001Vol.36No.2pp.245-250DOI:
Macroscopic Quantum Coherence in Antiferromagnetic Molecular
Magnets
HU Hui,1 LÜ Rong,2 ZHU Jia-Lin1,2 and
XIONG Jia-Jiong1
1 Departme...
Effects of Arbitrarily Directed Field on Spin Phase Oscillations in
Biaxial Molecular Magnets
macroscopic quantum
coherence molecular meliculare magnets spin-parity effects Fe8
2007/8/15
2001Vol.35No.6pp.751-758DOI:
Effects of Arbitrarily Directed Field on Spin Phase Oscillations in
Biaxial Molecular Magnets
HU Hui,1 ZHU Jia-Lin,1,2 LÜ Rong2 and XIONG Jia-Jio...
期刊信息
篇名
Effect of grain size and magnetocrystalline anisotropy on exchange coupling in nanocomposite two-phase Nd-Fe-B magnets
语种
英文
撰写或编译
作者
Q F Xiao,T Zhao,Z D Zhang,E Bruck,K H J.Buschow and F.R.de...