scholarly journals Long-range spin-singlet proximity effect for a Josephson system with a single-crystal ferromagnet due to its band-structure features

2018 ◽  
Vol 97 (10) ◽  
Author(s):  
M. V. Avdeev ◽  
Yu. N. Proshin
Keyword(s):  
Band Structure ◽  
Single Crystal ◽  
Long Range ◽  
Proximity Effect ◽  
Spin Singlet ◽  
Josephson System

scholarly journals Long-range superconducting proximity effect in template-fabricated single-crystal nanowires

2012 ◽  
Vol 400 (2) ◽  
pp. 022136 ◽  
Author(s):  
Haidong Liu ◽  
Zuxin Ye ◽  
Zhiping Luo ◽  
K D D Rathnayaka ◽  
Wenhao Wu
Keyword(s):  
Single Crystal ◽  
Long Range ◽  
Proximity Effect ◽  
Superconducting Proximity Effect

ChemInform Abstract: Single Crystal Growth, Transport, and Electronic Band Structure of YCoGa5.

ChemInform ◽  
2013 ◽  
Vol 44 (44) ◽  
pp. no-no
Author(s):  
Xiangde Zhu ◽  
Wenjian Lu ◽  
Wei Ning ◽  
Zhe Qu ◽  
Li Li ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Band Structure ◽  
Single Crystal ◽  
Electronic Band Structure ◽  
Single Crystal Growth ◽  
Electronic Band

scholarly journals Long-range triplet proximity effect in multiply connected ferromagnet-superconductor hybrids

2019 ◽  
Vol 100 (1) ◽  
Author(s):  
A. V. Samokhvalov ◽  
J. W. A. Robinson ◽  
A. I. Buzdin
Keyword(s):  
Long Range ◽  
Proximity Effect ◽  
Multiply Connected

Strongly correlated transition metal oxides

2019 ◽  
Author(s):  
Ελένη Αζά
Keyword(s):  
Dielectric Permittivity ◽  
Single Crystal ◽  
Single Crystals ◽  
Long Range ◽  
Ground State ◽  
Degrees Of Freedom ◽  
Magnetic Order ◽  
Range Order ◽  
Long Range Order ◽  
Strongly Correlated

The discovery of materials with coexisting magnetic and ferroelectric orders, has revived theinterest of condensed matter physics and materials’ science communities maintaining the greatpromise of such fundamental mechanisms in devising applications ranging from portablemagnetoelectric (ME) sensors and memories to radar technologies. The present PhD thesis is a study in the field of strongly correlated systems where coupled properties arise from the interplay of charge and spin degrees of freedom over lattice topologies enabling competing magnetic interactions and therefore emergence of coupling of electric and magnetic order. Non-perovskite, two-dimensional (2D) Na-Mn-O oxides are revisited in scope of this in both polycrystalline and large single crystal forms. Among Na-deficient polymorphs, hexagonal α-Na0.7MnO2 (single crystals) has been investigated for the first time as a playground of competing interactions due to mixed Mnvalence (Mn4+ / Mn3+), fostered by Na vacancies in the structure. The competition of FM (Mn3+-Mn4+) and AFM (Mn3+ -Mn3+) interactions is believed to be the origin of the magnetic instability leading to a glassy ground state leaving also their footprint in the dielectric permittivity measurements. Competing FM and AFΜ interactions are also investigated as the origin of the anisotropic magnetic properties witnessed in a-NaxMnO2 (x= 0.96) single crystals. Neutron single crystal experiments show a well-established AFM long range order which vanishes above 26 K whilea coexistent canted antiferromagnetic state persists up to 45 K. In both alpha powders and aNa0.96MnO2 single crystals, the dielectric permittivity suggests the onset of the commensuratemagnetic long range order (T~ 45 K) which in the case of the powders allows a magnetocapacitance effect. Compositional modulations in β-NaMnO2, which are depicted as an intergrowth of α- and βlike oxygen coordinations, are found to trigger a proper-screw magnetic ground state which evolves into collinear commensurate AFM state. Features in the dielectric permittivity coincide with the onset of the commensurate AFM order giving away also the contribution of the α- structural domains. Further understanding of the mechanisms that dictate the relief of frustrated interactions and establishment of magnetic order together with the role of structural complexity in the form of domains or domain-walls is a direction that warrants further exploration as it will help us to resolve whether other coupled electron degrees of freedom are likely to be generated in this family of oxides.

scholarly journals The actual electronic band structure of a rubrene single crystal

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Jun Nitta ◽  
Kazumoto Miwa ◽  
Naoki Komiya ◽  
Emilia Annese ◽  
Jun Fujii ◽  
...  
Keyword(s):  
Band Structure ◽  
Single Crystal ◽  
Electronic Band Structure ◽  
Electronic Band
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