Generation of 30 kbar hydrostatic pressure in Bi2Te3 thin films by uniaxial deformation and its effect on the band structure

2021 ◽  
Vol 104 (11) ◽  
Author(s):  
R. Shneck ◽  
S. Nemov ◽  
V. P. Drachev ◽  
L. Chernyak ◽  
Z. Dashevsky
Keyword(s):  
Thin Films ◽  
Hydrostatic Pressure ◽  
Band Structure ◽  
Uniaxial Deformation

STRAIN-INDUCED ELECTRONIC TOPOLOGICAL TRANSITIONS IN LaSrCuO THIN FILMS

2003 ◽  
Vol 17 (04n06) ◽  
pp. 542-547
Author(s):  
G. G. N. ANGILELLA ◽  
G. BALESTRINO ◽  
P. CERMELLI ◽  
P. PODIO-GUIDUGLI ◽  
A. A. VARLAMOV
Keyword(s):  
Thin Films ◽  
Critical Temperature ◽  
Hydrostatic Pressure ◽  
Band Structure ◽  
Pressure Dependence ◽  
Point Of View ◽  
Ginzburg Landau ◽  
Nonmonotonic Dependence ◽  
Topological Transition ◽  
Epitaxial Strain

We review a Ginzburg-Landau phenomenological model for the dependence of the critical temperature on microscopic strain in tetragonal high-T c cuprates. Such a model is in agreement with the experimental results for LSCO under epitaxial strain, as well as with the hydrostatic pressure dependence of T c in most cuprates. In particular, a nonmonotonic dependence of T c on hydrostatic pressure, as well as on in-plane or apical microstrain, is derived. From a microscopic point of view, such results can be understood as due to the proximity to an electronic topological transition (ETT). In the case of LSCO, we argue that such an ETT can be driven by a strain-induced modification of the band structure, at constant hole content, at variance with a doping-induced ETT, as is usually assumed.

scholarly journals Effect of Deformation on Topological Properties of Cobalt Monosilicide

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 143
Author(s):  
Sergey Nikolaev ◽  
Dmitry Pshenay-Severin ◽  
Yuri Ivanov ◽  
Alexander Burkov
Keyword(s):  
Band Structure ◽  
Ab Initio Calculations ◽  
Topological Charge ◽  
External Stress ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Topological Properties ◽  
Uniaxial Deformation ◽  
Band Crossing ◽  
Topological Charges

Recently, it was shown that materials with certain crystal structures can exhibit multifold band crossings with large topological charges. CoSi is one such material that belongs to non-centrosymmetric space group P213 (#198) and posseses multifold band crossing points with a topological charge of 4. The change of crystal symmetry, e.g., by means of external stress, can lift the degeneracy and change its topological properties. In the present work, the influence of uniaxial deformation on the band structure and topological properties of CoSi is investigated on the base of ab initio calculations. The k·p Hamiltonian taking into account deformation is constructed on the base of symmetry consideration near the Γ and R points both with and without spin-orbit coupling. The transformation of multifold band crossings into nodes of other types with different topological charges, their shift both in energy and in reciprocal space and the tilt of dispersion around nodes are studied in detail depending on the direction of uniaxial deformation.

Electronic band structure of gallium nitride: a comparative angle-resolved photoemission study of single crystals and thin films

2002 ◽  
Vol 507-510 ◽  
pp. 223-228 ◽  
Author(s):  
L. Plucinski ◽  
T. Strasser ◽  
B.J. Kowalski ◽  
K. Rossnagel ◽  
T. Boetcher ◽  
...  
Keyword(s):  
Thin Films ◽  
Gallium Nitride ◽  
Band Structure ◽  
Single Crystals ◽  
Electronic Band Structure ◽  
Electronic Band ◽  
Photoemission Study

Effect of interface band structure on hot-electron attenuation lengths in Au thin films

2008 ◽  
Vol 77 (3) ◽  
Author(s):  
A. J. Stollenwerk ◽  
E. J. Spadafora ◽  
J. J. Garramone ◽  
R. J. Matyi ◽  
R. L. Moore ◽  
...  
Keyword(s):  
Thin Films ◽  
Band Structure ◽  
Hot Electron ◽  
Au Thin Films

Hydrostatic-pressure-induced changes of magnetic anisotropy in (Ga, Mn)As thin films

2017 ◽  
Vol 29 (11) ◽  
pp. 115805 ◽  
Author(s):  
Marta Gryglas-Borysiewicz ◽  
Piotr Juszyński ◽  
Adam Kwiatkowski ◽  
Jacek Przybytek ◽  
Janusz Sadowski ◽  
...  
Keyword(s):  
Thin Films ◽  
Hydrostatic Pressure ◽  
Magnetic Anisotropy ◽  
Induced Changes

The crystalline structure and uniaxial deformation of spherulites in thin films of a linear polyurethane

1970 ◽  
Vol 12 (9) ◽  
pp. 2182-2190 ◽  
Author(s):  
V.A. Kuz'mina ◽  
Yu.V. Pasechnik ◽  
L.P. Gul'ko ◽  
Yu.S. Lipatov ◽  
L.N. Listrovaya
Keyword(s):  
Thin Films ◽  
Crystalline Structure ◽  
Uniaxial Deformation

Effect of hydrostatic pressure on the fragmented conduction band structure of dilute Ga(AsN) alloys

2005 ◽  
Vol 72 (4) ◽  
Author(s):  
J. Endicott ◽  
A. Patanè ◽  
D. Maude ◽  
L. Eaves ◽  
M. Hopkinson ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Band Structure ◽  
Conduction Band ◽  
Effect Of Hydrostatic Pressure

One-dimensional photonic crystals of inhomogeneous thin films: band structure of rugate filters

2005 ◽  
Vol 244 (1-6) ◽  
pp. 259-267 ◽  
Author(s):  
F. Aguayo-Ríos ◽  
F. Villa-Villa ◽  
J.A. Gaspar-Armenta
Keyword(s):  
Thin Films ◽  
Photonic Crystals ◽  
Band Structure ◽  
One Dimensional

Critical role of {002} preferred orientation on electronic band structure of electrodeposited monoclinic WO3 thin films

2018 ◽  
Vol 2 (10) ◽  
pp. 2224-2236 ◽  
Author(s):  
Wai Ling Kwong ◽  
Pramod Koshy ◽  
Judy N. Hart ◽  
Wanqiang Xu ◽  
Charles C. Sorrell
Keyword(s):  
Thin Films ◽  
Band Structure ◽  
Oxygen Vacancies ◽  
Electronic Band Structure ◽  
Critical Role ◽  
Preferred Orientation ◽  
Electronic Band ◽  
Wo3 Thin Films

Decoupled effects of crystallographic {002} orientation and oxygen vacancies on the electronic band structure of monoclinic WO3 films.

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