(111) Surface states and the Fermi surface neck radii in -Ni alloys

1984 ◽  
Vol 49 (7) ◽  
pp. 623-626 ◽  
Author(s):  
R.G. Jordan ◽  
P.J. Durham
Keyword(s):  
Fermi Surface ◽  
Surface States ◽  
Ni Alloys

Fermi Surface Mapping Using A Third Generation Light Source

1996 ◽  
Vol 437 ◽  
Author(s):  
Eli Rotenberg ◽  
J. D. Denlinger ◽  
S. D. Kevan ◽  
K. W. Goodman ◽  
J. G. Tobin ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Fermi Level ◽  
Light Source ◽  
Three Dimensional ◽  
Electronic States ◽  
Surface States ◽  
Surface Mapping ◽  
Uniform Sampling ◽  
Surface Brillouin Zone ◽  
Takeoff Angle

AbstractThe electronic states at the Fermi surface determine diverse properties such as magnetism, chemical bonding, and phonon-electron coupling. Using a conventional hemispherical analyzer at the ultraESCA beamline 7.0 of the Advanced Light Source, we have measured Fermi contours of the bulk and surface states of Cu(001) and Ag(001). For bulk states, we used uniform sampling in k-space by varying both the electron takeoff angle as well as the photon energy. Three-dimensional plots (in k-space) of bulk and surface states at the Fermi level can easily be achieved within one or two synchrotron shifts. Surface states, whose momentum is independent of k-perpendicular, are easily mapped if sufficiently dense angular sampling is performed. The states crossing the Fermi level at X in the surface Brillouin Zone of Cu(100) and Ag(100) are presented as examples.

Relation between Diffuse Scatterings and Fermi Surface Nesting in Iron Doped Ti-Ni Alloys

2007 ◽  
pp. 2337-2340
Author(s):  
Takuya Yamamoto ◽  
Mi Seon Choi ◽  
Sho Majima ◽  
Takashi Fukuda ◽  
Tomoyuki Kakeshita ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Ni Alloys ◽  
Fermi Surface Nesting ◽  
Iron Doped

Surface levels of organic conductors in a tilted in-plane magnetic field

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Danica Krstovska ◽  
Aleksandar Skeparovski
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Fermi Surface ◽  
Tilt Angle ◽  
Experimental Studies ◽  
Surface States ◽  
Organic Conductors ◽  
Magnetic Field Direction ◽  
Two Dimensional ◽  
Tilted Magnetic Field

Abstract Surface quantum states in quasi-two dimensional organic conductors induced by an external magnetic field tilted in the plane of the layers are obtained and analyzed. In tilted magnetic fields, these states arise from the transitions of the electrons between the closed orbits on the sides of the Fermi surface determined by the electron momentum along the magnetic field direction p B and the coordinate of the center of electron revolution Z. By far, in organic conductors, the surface states have not been studied for tilted magnetic fields. In this work, we have performed detail analyses of the surface states in a tilted in-plane magnetic field by calculating the surface energy spectrum and surface wave functions in order to address their properties and features. We find that, in a tilted magnetic field, the surface levels have higher energies compared to those at zero tilt angle but can be observed only up to a certain tilt angle. The resonant magnetic field and angular values at which the peaks in the surface oscillations should be observed are obtained. Further theoretical and new experimental studies of the surface states in a tilted magnetic field might give new insights into the surface properties of quasi-two dimensional organic conductors. Additionally, they may reveal new information about the parameters of the Fermi surface of organic conductors necessary for its reconstruction.

Evidence of a 2D Fermi surface due to surface states in a p-type metallic Bi2Te3

2018 ◽  
Vol 30 (18) ◽  
pp. 185601
Author(s):  
K Shrestha ◽  
V Marinova ◽  
B Lorenz ◽  
C W Chu
Keyword(s):  
Fermi Surface ◽  
Surface States ◽  
P Type

scholarly journals Fermi Surface, Surface States, and Surface Reconstruction inSr2RuO4

2000 ◽  
Vol 85 (24) ◽  
pp. 5194-5197 ◽  
Author(s):  
A. Damascelli ◽  
D. H. Lu ◽  
K. M. Shen ◽  
N. P. Armitage ◽  
F. Ronning ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Surface Reconstruction ◽  
Surface States

scholarly journals Two Fermi Surface States and Two Tc-Rising Mechanisms Revealed by Transport Properties in RFeP1-xAsxO0.9F0.1 (R = La, Pr, and Nd)

2013 ◽  
Vol 82 (12) ◽  
pp. 124706 ◽  
Author(s):  
Shigeki Miyasaka ◽  
Akira Takemori ◽  
Tatsuya Kobayashi ◽  
Shinnosuke Suzuki ◽  
Satoshi Saijo ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Transport Properties ◽  
Surface States

scholarly journals Change of Fermi surface states related with two different Tc -raising mechanisms in iron pnictide superconductors

2018 ◽  
Vol 98 (10) ◽  
Author(s):  
A. Takemori ◽  
T. Hajiri ◽  
S. Miyasaka ◽  
Z. H. Tin ◽  
T. Adachi ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Surface States ◽  
Iron Pnictide ◽  
Pnictide Superconductors

Symmetry Analysis of the Fermi Surface States of Sr2RuO4by Display-Type Photoelectron Spectroscopy

1999 ◽  
Vol 68 (4) ◽  
pp. 1398-1403 ◽  
Author(s):  
Taichi Okuda ◽  
Masato Kotsugi ◽  
Kan Nakatsuji ◽  
Masao Fujikawa ◽  
Shigemasa Suga ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Photoelectron Spectroscopy ◽  
Surface States ◽  
Symmetry Analysis ◽  
Display Type

Relation between Diffuse Scatterings and Fermi Surface Nesting in Iron Doped Ti-Ni Alloys

2007 ◽  
Vol 561-565 ◽  
pp. 2337-2340
Author(s):  
Takuya Yamamoto ◽  
Mi Seon Choi ◽  
Sho Majima ◽  
Takashi Fukuda ◽  
Tomoyuki Kakeshita ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Negative Temperature Coefficient ◽  
Reciprocal Lattice ◽  
Negative Temperature ◽  
Lattice Points ◽  
Intensity Maximum ◽  
Principle Calculation ◽  
First Principle Calculation ◽  
Ni Alloys ◽  
Fe Content

We have studied diffuse scatterings appearing in Ti-(50-x)Ni-xFe (x = 6, 7, 8, 10) alloy, which shows negative temperature coefficient in electrical resistivity below a temperature Tmin. Electron diffraction pattern of each alloy exhibits diffuse scatterings below Tmin on cooling. The intensity maximum of the diffuse scatterings is located at an incommensurate position of g+<ζζ0>, where g represents reciprocal lattice points of the B2-phase. The value ζ is slightly smaller than 1/3 and decreases with increasing Fe content. The diffuse scatterings of the present alloys are well explained by the nesting effect of the Fermi surface in the B2-type structure, i.e., ζ of each alloy agrees with the length of nesting vector in the [110] direction, which is evaluated by a first-principle calculation.

Sign in / Sign up

Export Citation Format

Share Document