搜索结果: 1-15 共查到“理学 magnets”相关记录23条 . 查询时间(0.064 秒)
Researchers find a new way to control magnets（图）
磁铁 可逆系统 小电压 翻转粒子 磁取向 数据存储 传感器
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2023/6/7
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...
Qualifying HL-LHC magnets and cavities at Uppsala University（图）
乌普萨拉大学 HL-LHC磁体 空腔合格
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2023/5/26
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 ...
15th International Conference on Molecule-Based Magnets
molecule-based magnets molecular magnetism
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2016/7/26
We are pleased to announce that the 15th International conference on molecule-based magnets:ICMM2016 will be held in Sendai, Japan. Since the start of ICMM in 1989 in Dallas, the study of molecule-bas...
Astronomers Peer Inside Stars,Finding Giant Magnets
Astronomers Peer Inside Stars Giant Magnets
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2015/11/12
Using a technique called asteroseismology, the scientists were able to calculate the magnetic field strengths in the fusion-powered hearts of dozens of red giants, stars that are evolved versions of o...
Landmark study proves that magnets can control heat and sound
magnets control heat sound
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2015/3/25
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
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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
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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
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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
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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
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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
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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
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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...
Moral judgments can be altered ... by magnets（图）
brain activity a particular region neuroscientists moral situations
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2010/4/21
To make moral judgments about other people, we often need to infer their intentions — an ability known as “theory of mind.” For example, if one hunter shoots another while on a hunting trip, we need t...
The spin dynamics of molecular magnets beyond Kubo's linear response theory
nanomagnets spin dynamics Kubo response theory perturbation theory
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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
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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...