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19962026
Showing 2015 · cond-mat.mtrl-sciShow all

8 papers · 2 filters

cond-mat.mtrl-sci2015★ 11 cited

Low energy exciton pocket at finite momentum in tetracene molecular solids

Friedrich Roth, Markus Nohr, Silke Hampel +1

The excited state dynamics in organic semiconductors plays an important role for many processes associated with light absorption and emission. We have studied the momentum dependen…

cond-mat.mtrl-sci2015★ 11 cited

Correlation between topological band character and chemical bonding in a -based family of insulators

Bertold Rasche, Anna Isaeva, Michael Ruck +3

Recently the presence of topologically protected edge-states in BiRhI was confirmed by scanning tunnelling microscopy consolidating this compound as a weak 3D topolo…

cond-mat.mtrl-sci2015★ 16 cited

Enhanced and Tunable Spin-Orbit Coupling in Tetragonally Strained Fe-Co-B Films

Ruslan Salikhov, Ludwig Reichel, Benjamin Zingsem +8

We have synthesized 20 nm thick films of tetragonally strained interstitial Fe-Co-B alloys epitaxially grown on Au55Cu45 buffer layer. The strained axis is perpendicular to the fil…

cond-mat.mtrl-sci2015★ 31 cited

From soft to hard magnetic Fe-Co-B by spontaneous strain: A combined first principle and thin film study

Ludwig Reichel, Ludwig Schultz, Darius Pohl +6

In order to convert the well-known Fe-Co-B alloy from a soft to a hard magnet, we propose tetragonal strain by interstitial boron. Density functional theory reveals that when B ato…

cond-mat.mtrl-sci2015★ 13 cited

Triggering one dimensional phase transition with defects at the graphene zigzag edge

Qingming Deng, Jiong Zhao

One well-known argument about one dimensional(1D) system is that 1D phase transition at finite temperature cannot exist, despite this concept depends on conditions such as range of…

cond-mat.mtrl-sci2015★ 22 cited

Metastable cubic and tetragonal phases of transition metals predicted by density-functional theory

Stephan Schönecker, Xiaoqing Li, Klaus Koepernik +3

By means of density-functional calculations, we systematically investigated 24 transition metals for possible metastable phases in body-centered tetragonal structure (bct), includi…