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相关论文: Orbital Polarization in Itinerant Magnets

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Large orbital angular momentum can be generated in non-central heavy-ion collisions, and part of it is expected to be converted into final particle's polarization due to the spin-orbit coupling. Within the framework of A Multi-Phase…

核理论 · 物理学 2017-12-08 Xiao-Liang Xia , Hui Li , Qun Wang

The spin Edelstein effect has proven to be a promising phenomenon to generate spin polarization from a charge current in systems without inversion symmetry. In recent years, a current-induced orbital magnetization, called orbital Edelstein…

介观与纳米尺度物理 · 物理学 2024-01-17 Sergio Leiva M. , Jürgen Henk , Ingrid Mertig , Annika Johansson

We investigate the altermagnetic properties of strongly-correlated transition metal oxides considering the family of the quasi two-dimensional A2BO4 and three-dimensional ABO3. As a test study, we analyze the Mott insulators Ca2RuO4 and…

强关联电子 · 物理学 2023-09-06 Giuseppe Cuono , Raghottam M. Sattigeri , Jan Skolimowski , Carmine Autieri

Controlling the perpendicular magnetic anisotropy (PMA) in thin films has received considerable attention in recent years due to its technological importance. PMA based devices usually involve heavy-metal (oxide)/ferromagnetic-metal…

The physics interpretation of the recent measurements of the spin polarization of $\Lambda$ hyperons produced in relativistic heavy-ion collisions is discussed. We suggest that the polarization measured in the $\Lambda$ rest frame should be…

高能物理 - 唯象学 · 物理学 2022-09-07 Wojciech Florkowski , Radoslaw Ryblewski

We argue that salient experimental features of the magnetic excitations in the SDW phase of iron-based superconductors can be understood within an itinerant model. We identify a minimal itinerant model and use a multi-band RPA treatment of…

超导电性 · 物理学 2010-04-23 J. Knolle , I. Eremin , A. V. Chubukov , R. Moessner

We study spin-polarized transient transport in a quantum dot coupled to two ferromagnetic leads subjected to a rectangular bias voltage pulse. Time-dependent spin-resolved currents, occupations, spin accumulation, and tunneling…

介观与纳米尺度物理 · 物理学 2011-11-09 F. M. Souza , S. A. Leao , R. M. Gester , A. P. Jauho

Rotating wave approximation in a quantum spin system driven by a linearly polarized alternating magnetic field with quadrupole interaction presents is investigated in detail in this paper. The conventional way to employ the rotating wave…

量子物理 · 物理学 2020-10-16 Wenkui Ding , Xiaoguang Wang

We use spatial spin separation by a magnetic focusing technique to probe the polarization of quantum point contacts. The point contacts are fabricated from p-type GaAs/AlGaAs heterostructures. A finite polarization is measured in the…

介观与纳米尺度物理 · 物理学 2009-11-11 L. P. Rokhinson , L. N. Pfeiffer , K. W. West

Transformation of Coulomb interaction terms to the pseudo-orbital basis constituted by $J=1/2$ and $3/2$ states arising from spin-orbit coupling provides a versatile tool. This formalism is applied to investigate magnetic anisotropy effects…

强关联电子 · 物理学 2019-03-11 Shubhajyoti Mohapatra , Avinash Singh

We discuss the notions of spin-orbital polarization and ordering in paramagnetic materials, and address their consequences in transition metal oxides. Extending the combined density functional and dynamical mean field theory scheme to the…

强关联电子 · 物理学 2014-12-16 Cyril Martins , Markus Aichhorn , Loig Vaugier , Silke Biermann

A systematic ab-initio study within the framework of the local-spin-density approximation including spin-orbit coupling and an orbital-polarization term is performed for the spin and orbital moments and for the X-ray magnetic circular…

材料科学 · 物理学 2009-11-07 Matej Komelj , Claude Ederer , James W. Davenport , Manfred Faehnle

In hadron spectrum physics, the partial wave analysis is a primary method used to extract properties of hadronic resonances. The covariant orbital-spin coupling scheme holds unique advantages over other partial wave methods due to its…

高能物理 - 唯象学 · 物理学 2023-10-18 Hao-Jie Jing , Di Ben , Shu-Ming Wu , Jia-Jun Wu , Bing-Song Zou

We employ the Gutzwiller variational approach to investigate the interplay of Coulomb interaction and spin-orbit coupling in a three-orbital Hubbard model. Already in the paramagnetic phase we find a substantial renormalization of the…

强关联电子 · 物理学 2016-07-20 Jörg Bünemann , Thorben Linneweber , Ute Löw , Frithjof B. Anders , Florian Gebhard

A mechanism is proposed based on the Kubo formula to generate a spin-polarized magneto-optical current of Dirac electrons in solids which have strong spin-orbit interactions such as bismuth. The ac current response functions are calculated…

材料科学 · 物理学 2015-05-30 Yuki Fuseya , Masao Ogata , Hidetoshi Fukuyama

The orbital magnetic moment is usually associated with the relativistic spin-orbit interaction, but recently it has been shown that noncollinear magnetic structures can also be its driving force. This is important not only for magnetic…

介观与纳米尺度物理 · 物理学 2017-09-18 Manuel dos Santos Dias , Samir Lounis

In Ta/CoFeB/HfO2 stacks a gate voltage drives, in a nonvolatile way, the system from an underoxidized state exhibiting in-plane anisotropy (IPA) to an optimum oxidation level resulting in perpendicular anisotropy (PMA) and further into an…

Using quantum mechanical perturbation theory (PT) we analyze how the energy of perturbation of different orders is renormalized in solids. We test the validity of PT analysis by considering a specific case of spin-orbit coupling as a…

材料科学 · 物理学 2014-07-11 Vladimir Antropov , Liqin Ke , Daniel Åberg

We establish thermodynamic stability and gauge invariance in the magnetovortical matter of Dirac fermions under the coexistent rotation and strong magnetic field. The corresponding partition function reveals that the orbital contribution to…

高能物理 - 唯象学 · 物理学 2025-07-02 Kenji Fukushima , Koichi Hattori , Kazuya Mameda

Negative charge transfer $AB$O$_3$ oxides may undergo electronic metal--insulator transitions (MIT) concomitant with a dilation and contraction of nearly rigid octahedra. On both sides of the MIT are in-phase or out-of-phase (or both)…

材料科学 · 物理学 2015-06-15 Antonio Cammarata , James M. Rondinelli