Spin-Polarized Photoelectron Spectroscopy

1996 ◽  
pp. 420-430
Author(s):  
Stefan Hüfner
Keyword(s):  
Photoelectron Spectroscopy ◽  
Spin Polarized

Electronic structure and magnetism of epitaxial Fe monolayers on Au(001) by spin-polarized photoelectron spectroscopy

Vacuum ◽  
1990 ◽  
Vol 41 (1-3) ◽  
pp. 493-495 ◽  
Author(s):  
W Heinen ◽  
C Carbone ◽  
T Kachel ◽  
W Gudat
Keyword(s):  
Electronic Structure ◽  
Photoelectron Spectroscopy ◽  
Spin Polarized

scholarly journals Spin-polarized Weyl cones and giant anomalous Nernst effect in ferromagnetic Heusler films

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Kazuki Sumida ◽  
Yuya Sakuraba ◽  
Keisuke Masuda ◽  
Takashi Kono ◽  
Masaaki Kakoki ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Remanent Magnetization ◽  
Room Temperature ◽  
High Efficiency ◽  
Quantum Critical Point ◽  
Surface States ◽  
Flat Band ◽  
Zero Field ◽  
Topological Quantum ◽  
Spin Polarized

AbstractWeyl semimetals are characterized by the presence of massless band dispersion in momentum space. When a Weyl semimetal meets magnetism, large anomalous transport properties emerge as a consequence of its topological nature. Here, using in−situ spin- and angle-resolved photoelectron spectroscopy combined with ab initio calculations, we visualize the spin-polarized Weyl cone and flat-band surface states of ferromagnetic Co2MnGa films with full remanent magnetization. We demonstrate that the anomalous Hall and Nernst conductivities systematically grow when the magnetization-induced massive Weyl cone at a Lifshitz quantum critical point approaches the Fermi energy, until a high anomalous Nernst thermopower of  ~6.2 μVK−1 is realized at room temperature. Given this topological quantum state and full remanent magnetization, Co2MnGa films are promising for realizing high efficiency heat flux and magnetic field sensing devices operable at room temperature and zero-field.

Spin‐polarized electronic structure of cobalt cluster anions studied by photoelectron spectroscopy

1995 ◽  
Vol 102 (15) ◽  
pp. 5960-5965 ◽  
Author(s):  
Hiroyuki Yoshida ◽  
Akira Terasaki ◽  
Katsuyoshi Kobayashi ◽  
Masaru Tsukada ◽  
Tamotsu Kondow
Keyword(s):  
Electronic Structure ◽  
Photoelectron Spectroscopy ◽  
Cluster Anions ◽  
Cobalt Cluster ◽  
Spin Polarized

Spin-Polarized Inverse Photoelectron Spectroscopy of Solid Surfaces: Ni(110)

1982 ◽  
Vol 49 (14) ◽  
pp. 1047-1050 ◽  
Author(s):  
J. Unguris ◽  
A. Seiler ◽  
R. J. Celotta ◽  
D. T. Pierce ◽  
P. D. Johnson ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Solid Surfaces ◽  
Spin Polarized

scholarly journals Spin-Polarized Angle-Resolved Photoelectron Spectroscopy of the So-Predicted Kondo Topological Insulator SmB6

2014 ◽  
Vol 83 (1) ◽  
pp. 014705 ◽  
Author(s):  
Shigemasa Suga ◽  
Kazuyuki Sakamoto ◽  
Taichi Okuda ◽  
Koji Miyamoto ◽  
Kenta Kuroda ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Photoelectron Spectroscopy ◽  
Spin Polarized

Surface spin-polarized currents generated in topological insulators by circularly polarized synchrotron radiation and their photoelectron spectroscopy indication

2016 ◽  
Vol 58 (8) ◽  
pp. 1675-1686 ◽  
Author(s):  
A. M. Shikin ◽  
I. I. Klimovskikh ◽  
M. V. Filyanina ◽  
A. A. Rybkina ◽  
D. A. Pudikov ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Photoelectron Spectroscopy ◽  
Topological Insulators ◽  
Circularly Polarized ◽  
Spin Polarized ◽  
Surface Spin

A new imaging concept in spin polarimetry based on the spin-filter effect

2021 ◽  
Vol 28 (3) ◽  
Author(s):  
Oleg E. Tereshchenko ◽  
Vladimir A. Golyashov ◽  
Vadim S. Rusetsky ◽  
Andrey V. Mironov ◽  
Alexander Yu. Demin ◽  
...  
Keyword(s):  
Kinetic Energy ◽  
Spin Polarization ◽  
Photoelectron Spectroscopy ◽  
Spin Asymmetry ◽  
Spin Exchange ◽  
Magnetic Layer ◽  
Semiconductor Heterostructure ◽  
Spin Polarized ◽  
Type Mode ◽  
Image Type

The concept of an imaging-type 3D spin detector, based on the combination of spin-exchange interactions in the ferromagnetic (FM) film and spin selectivity of the electron–photon conversion effect in a semiconductor heterostructure, is proposed and demonstrated on a model system. This novel multichannel concept is based on the idea of direct transfer of a 2D spin-polarized electron distribution to image cathodoluminescence (CL). The detector is a hybrid structure consisting of a thin magnetic layer deposited on a semiconductor structure allowing measurement of the spatial and polarization-dependent CL intensity from injected spin-polarized free electrons. The idea is to use spin-dependent electron transmission through in-plane magnetized FM film for in-plane spin detection by measuring the CL intensity from recombined electrons transmitted in the semiconductor. For the incoming electrons with out-of-plane spin polarization, the intensity of circularly polarized CL light can be detected from recombined polarized electrons with holes in the semiconductor. In order to demonstrate the ability of the solid-state spin detector in the image-type mode operation, a spin detector prototype was developed, which consists of a compact proximity focused vacuum tube with a spin-polarized electron source [p-GaAs(Cs,O)], a negative electron affinity (NEA) photocathode and the target [semiconductor heterostructure with quantum wells also with NEA]. The injection of polarized low-energy electrons into the target by varying the kinetic energy in the range 0.5–3.0 eV and up to 1.3 keV was studied in image-type mode. The figure of merit as a function of electron kinetic energy and the target temperature is determined. The spin asymmetry of the CL intensity in a ferromagnetic/semiconductor (FM-SC) junction provides a compact optical method for measuring spin polarization of free-electron beams in image-type mode. The FM-SC detector has the potential for realizing multichannel 3D vectorial reconstruction of spin polarization in momentum microscope and angle-resolved photoelectron spectroscopy systems.

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