Substrate‐Dependent Spin–Orbit Coupling in Hybrid Perovskite Thin Films

2019 ◽  
Vol 29 (35) ◽  
pp. 1904046 ◽  
Author(s):  
Qi Zhang ◽  
Haomiao Yu ◽  
Fenggui Zhao ◽  
Liying Pei ◽  
Jinpeng Li ◽  
...  
Keyword(s):  
Thin Films ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Hybrid Perovskite

scholarly journals Ultrathin two-dimensional superconductivity with strong spin–orbit coupling

2016 ◽  
Vol 113 (38) ◽  
pp. 10513-10517 ◽  
Author(s):  
Hyoungdo Nam ◽  
Hua Chen ◽  
Tijiang Liu ◽  
Jisun Kim ◽  
Chendong Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Energy Gap ◽  
Scanning Tunneling Spectroscopy ◽  
Orbit Coupling ◽  
Spin Splitting ◽  
Scanning Tunneling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Critical Magnetic Fields ◽  
Strong Spin

We report on a study of epitaxially grown ultrathin Pb films that are only a few atoms thick and have parallel critical magnetic fields much higher than the expected limit set by the interaction of electron spins with a magnetic field, that is, the Clogston–Chandrasekhar limit. The epitaxial thin films are classified as dirty-limit superconductors because their mean-free paths, which are limited by surface scattering, are smaller than their superconducting coherence lengths. The uniformity of superconductivity in these thin films is established by comparing scanning tunneling spectroscopy, scanning superconducting quantum interference device (SQUID) magnetometry, double-coil mutual inductance, and magneto-transport, data that provide average superfluid rigidity on length scales covering the range from microscopic to macroscopic. We argue that the survival of superconductivity at Zeeman energies much larger than the superconducting gap can be understood only as the consequence of strong spin–orbit coupling that, together with substrate-induced inversion-symmetry breaking, produces spin splitting in the normal-state energy bands that is much larger than the superconductor’s energy gap.

scholarly journals Tailoring magnetization and anisotropy of tetragonal Mn3Ga thin films by strain-induced growth and spin orbit coupling

2018 ◽  
Vol 92 ◽  
pp. 20-24 ◽  
Author(s):  
Rocío M. Gutiérrez-Pérez ◽  
Ricardo López Antón ◽  
Karol Załęski ◽  
José T. Holguín-Momaca ◽  
Francisco Espinosa-Magaña ◽  
...  
Keyword(s):  
Thin Films ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit

scholarly journals Spin-orbit coupling induced by bismuth doping in silicon thin films

2018 ◽  
Vol 113 (12) ◽  
pp. 122408 ◽  
Author(s):  
F. Rortais ◽  
S. Lee ◽  
R. Ohshima ◽  
S. Dushenko ◽  
Y. Ando ◽  
...  
Keyword(s):  
Thin Films ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Silicon Thin Films ◽  
Bismuth Doping

scholarly journals Organic-to-inorganic structural chirality transfer in a 2D hybrid perovskite and impact on Rashba-Dresselhaus spin-orbit coupling

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Manoj K. Jana ◽  
Ruyi Song ◽  
Haoliang Liu ◽  
Dipak Raj Khanal ◽  
Svenja M. Janke ◽  
...  
Keyword(s):  
Break Symmetry ◽  
Orbit Coupling ◽  
Spin Splitting ◽  
Racemic Mixture ◽  
Emergent Properties ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Molecular Configuration ◽  
Chirality Transfer ◽  
Hybrid Perovskite

Abstract Translation of chirality and asymmetry across structural motifs and length scales plays a fundamental role in nature, enabling unique functionalities in contexts ranging from biological systems to synthetic materials. Here, we introduce a structural chirality transfer across the organic–inorganic interface in two-dimensional hybrid perovskites using appropriate chiral organic cations. The preferred molecular configuration of the chiral spacer cations, R-(+)- or S-(−)-1-(1-naphthyl)ethylammonium and their asymmetric hydrogen-bonding interactions with lead bromide-based layers cause symmetry-breaking helical distortions in the inorganic layers, otherwise absent when employing a racemic mixture of organic spacers. First-principles modeling predicts a substantial bulk Rashba-Dresselhaus spin-splitting in the inorganic-derived conduction band with opposite spin textures between R- and S-hybrids due to the broken inversion symmetry and strong spin-orbit coupling. The ability to break symmetry using chirality transfer from one structural unit to another provides a synthetic design paradigm for emergent properties, including Rashba-Dresselhaus spin-polarization for hybrid perovskite spintronics and related applications.

Orbital moment probed spin orbit coupling effects on anisotropy and damping in CoFeB thin films

RSC Advances ◽  
2016 ◽  
Vol 6 (97) ◽  
pp. 94717-94722 ◽  
Author(s):  
Deepika Jhajhria ◽  
Dinesh K. Pandya ◽  
Sujeet Chaudhary
Keyword(s):  
Thin Films ◽  
Magnetic Anisotropy ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Coupling Effects ◽  
Orbital Moment ◽  
Stress Variations

Spin orbit coupling based direct correlation between magnetic anisotropy and damping is established in CoFeB thin films on compositional and stress variations.

Enhancing the Spin–Orbit Coupling in Fe3O4Epitaxial Thin Films by Interface Engineering

2016 ◽  
Vol 8 (40) ◽  
pp. 27353-27359 ◽  
Author(s):  
Zhaocong Huang ◽  
Wenqing Liu ◽  
Jinjin Yue ◽  
Qionghua Zhou ◽  
Wen Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Interface Engineering
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