204 citations
- Forschungszentrum JülichDE15 papers
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16 papers · 1 filter
Quantum criticality in a uniaxial organic ferroelectric
S. E. Rowley, M. Hadjimichael, M. N. Ali +4
Tris-sarcosine calcium chloride (TSCC) is a highly uniaxial ferroelectric with a Curie temperature of approximately 130K. By suppressing ferroelectricity with bromine substitution…
Search for spin gapless semiconductors: The case of inverse Heusler compounds
S. Skaftouros, K. Ozdogan, E. Sasioglu +1
We employ ab-initio electronic structure calculations to search for spin gapless semiconductors, a recently identified new class of materials, among the inverse Heusler compounds.…
Ab-initio calculation of effective exchange interactions, spin waves, and Curie temperature in L2_1- and L1_2-type local moment ferromagnets
I. Galanakis, E. Sasioglu
Employing first-principles electronic structure calculations in conjunction with the frozen-magnon method we study the effective exchange interactions and spin waves in local momen…
Making ARPES Measurements on Corrugated Monolayer Crystals: Suspended Exfoliated Single-Crystal Graphene
Kevin R. Knox, Andrea Locatelli, Mehmet B. Yilmaz +6
Free-standing exfoliated monolayer graphene is an ultra-thin flexible membrane, which exhibits out of plane deformation or corrugation. In this paper, a technique is described to m…
Nonzero macroscopic magnetization in half-metallic antiferromagnets at finite temperatures
Ersoy Sasioglu
Combining density-functional theory calculations with many-body Green's-function technique, we reveal that the macroscopic magnetization in half-metallic antiferromagnets does not…
Half-metallic ferrimagnetism in the [ScV]C and [ScV]Si alloys adopting the zinc-blende and wurtzite structures from first-principles
K. Ozdogan, E. Sasioglu, I. Galanakis
Employing first-principles calculations we study the structural, electronic and magnetic properties of the [ScV]C and [ScV]Si alloys. In their equilibrium r…