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相关论文: De Haas-van Alphen effect in metals without invers…

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A magnetometer using spin-polarized K and $^3$He atoms occupying the same volume is used to search for anomalous nuclear spin-dependent forces generated by a separate $^3$He spin source. We measure changes in the $^3$He spin precession…

原子物理 · 物理学 2010-01-11 G. Vasilakis , J. M. Brown , T. W. Kornack , M. V. Romalis

We study the mechanisms of the spin Hall effect (SHE) and anomalous Hall effect (AHE) in 3$d$ ferromagnetic metals (Fe, Co, permalloy (Ni$_{81}$Fe$_{19}$; Py), and Ni) by varying their resistivities and temperature. At low temperatures…

介观与纳米尺度物理 · 物理学 2019-01-08 Yasutomo Omori , Edurne Sagasta , Yasuhiro Niimi , Martin Gradhand , Luis E. Hueso , Felix Casanova , YoshiChika Otani

We study the spin-dependent transmission through interfaces between a HgTe/CdTe quantum well (QW) and a metal - both for the normal metal and the superconducting case. Interestingly, we discover a new type of spin Hall effect at these…

介观与纳米尺度物理 · 物理学 2015-05-27 M. Guigou , P. Recher , J. Cayssol , B. Trauzettel

We report a study of the de Haas-van Alphen (dHvA) effect on the itinerant metamagnet Sr$_3$Ru$_2$O$_7$. Extremely high sample purity allows the observation of dHvA oscillations both above and below the metamagnetic transition field of 7.9…

强关联电子 · 物理学 2009-11-10 R. A. Borzi , S. A. Grigera , R. S. Perry , N. Kikugawa , K. Kitagawa , Y. Maeno , A. P. Mackenzie

We consider spin and charge flow in normal metals. We employ the Keldysh formalism to find transport equations in the presence of spin-orbit interaction, interaction with magnetic impurities, and non-magnetic impurity scattering. Using the…

介观与纳米尺度物理 · 物理学 2009-11-10 R. V. Shchelushkin , Arne Brataas

We report a de Haas-van Alphen (dHvA) effect study on the Dirac type-II semimetallic candidates \emph{M}Al$_3$ (where, \emph{M} = V, Nb and Ta). The angular-dependence of their Fermi surface (FS) cross-sectional areas reveals a remarkably…

材料科学 · 物理学 2018-05-17 K. -W. Chen , X. Lian , Y. Lai , N. Aryal , Y. -C. Chiu , W. Lan , D. Graf , E. Manousakis , R. E. Baumbach , L. Balicas

In recent years, there has been increasing interest in the specific heat $C$ of insulators and semiconductors because of the availability of samples with different isotopic masses and the possibility of performing \textit{ab initio}…

材料科学 · 物理学 2007-05-23 Diaz-Luis , A. H. Romero , M. Cardona , R. K. Kremer , X. Gonze

We investigate the proximity spin-orbit and exchange couplings in ABA and ABC trilayer graphene encapsulated within monolayers of semiconducting transition-metal dichalcogenides and the ferromagnetic semiconductor Cr$_2$Ge$_2$Te$_6$.…

介观与纳米尺度物理 · 物理学 2022-03-22 Klaus Zollner , Martin Gmitra , Jaroslav Fabian

A recently published correlated electron pseudopotentials (CEPPs) method has been adapted for application to the 3d-transition metals, and to include relativistic effects. New CEPPs are reported for the atoms Sc$-$Fe, constructed from…

材料科学 · 物理学 2015-06-24 John Trail , Richard Needs

The inverse Faraday effect is an opto-magnetic phenomenon that describes the ability of circularly polarized light to induce magnetism in solids. The capability of light to control magnetic order in solid state materials and devices is of…

材料科学 · 物理学 2023-12-20 Víctor H. Ortiz , Shashi B. Mishra , Luat Vuong , Sinisa Coh , Richard B. Wilson

Using Raman spectroscopy to study the correlated 4$d$-electron metal Sr$_2$RhO$_4$, we observe pronounced excitations at 220 meV and 240 meV with $A_\mathrm{1g}$ and $B_\mathrm{1g}$ symmetries, respectively. We identify them as transitions…

The possibility of using axial spin color centers with $S=3/2$, oriented along the hexagonal $c$ axis in a silicon carbide (SiC) wafer, has been demonstrated for all-optical measurement of projection of the external magnetic field…

Carrying information using generation and detection of the orbital current, instead of the spin current, is an emerging field of research, where the orbital Hall effect (OHE) is an important ingredient. Here, we propose a new mechanism of…

材料科学 · 物理学 2020-04-22 Sayantika Bhowal , S. Satpathy

We report on an anomalous behavior of the spin-splitting zeros in the de Haas-van Alphen (dHvA) signal of a quasi-two-dimensional organic superconductor. The zeros as well as the angular dependence of the amplitude of the second harmonic…

强关联电子 · 物理学 2008-08-27 J. Wosnitza , V. M. Gvozdikov , J. Hagel , P. J. Meeson , J. A. Schlueter , R. W. Winter , G. L. Gard

Measurements of the de Haas - van Alphen effect have been carried out on the heavy fermion anti-ferromagnet CeRhIn5 at temperatures between 25 mK and 500 mK under pressure. We present some preliminary results of our measurements to track…

强关联电子 · 物理学 2009-11-07 Donavan Hall , S. W. Tozer , E. C. Palm , T. P. Murphy , R. G. Goodrich , J. L. Sarrao

The Einstein-de Haas effect is a phenomenon in which angular momentum is transferred from microscopic spins to mechanical rotation of a rigid body. Here, we report the first observation of the Einstein-de Haas effect in a spinor-dipolar…

Noncollinear antiferromagnets (nc-AFMs) have attracted increasing research attention in spintronics due to their unique spin structures and fascinating charge and spin transport properties. By using first-principles calculations, we…

材料科学 · 物理学 2024-05-28 Meng Zhu , Xinlu Li , Fanxing Zheng , Jianting Dong , Ye Zhou , Kun Wu , Jia Zhang

Silicon's weak intrinsic spin-orbit coupling and centrosymmetric crystal structure are a critical bottleneck to the development of Si spintronics, because they lead to an insignificant spin-Hall effect (spin current generation) and inverse…

介观与纳米尺度物理 · 物理学 2020-04-03 Paul C. Lou , Anand Katailiha , Ravindra G. Bhardwaj , Tonmoy Bhowmick , W. P. Beyermann , Roger K. Lake , Sandeep Kumar

Spin correlations between top-quark and anti-top-quark in pair production are sensitive to physics beyond the standard model. A complete set of observables, that can be used to measure all independent parameters of the production spin…

高能物理 - 唯象学 · 物理学 2017-10-11 Kai Ma

We present the Usadel theory describing the superconducting proximity effect in heterostructures with a half-metallic layer. It is shown that the full spin polarization inside the half-metals gives rise to the giant triplet spin-valve…

超导电性 · 物理学 2015-11-30 S. Mironov , A. Buzdin