activity
20092023
most citedColossal dielectric constants in transition-metal oxides

490 citations · 813 across the 11 of their papers we have counts for

collaborators

11 papers

physics.app-ph2023★ 20 cited

Laser Powder Bed Fusion of anisotropic Nd-Fe-B bonded magnets utilizing an in situ mechanical alignment approach

Kilian Schäfer, Rafael Gitti Tortoretto Fim, Fernando Maccari +9

Nd-Fe-B bonded magnets are an important class of permanent magnets, employed in many technological sectors. The Additive Manufacturing (AM) processes enables the fabrication of net…

cond-mat.mtrl-sci2023★ 1 cited

Additive manufacturing of Ni-Mn-Sn shape memory Heusler alloy -- Microstructure and magnetic properties from powder to printed parts

Franziska Scheibel, Christian Lauhoff, Philipp Krooß +9

Ni-Mn-based Heusler alloys like Ni-Mn-Sn show an elastocaloric as well as magnetocaloric effect during the magneto-structural phase transition, making this material interesting for…

cond-mat.mtrl-sci2023★ 16 cited

Influence of Gd-rich precipitates on the martensitic transformation, magnetocaloric effect and mechanical properties of Ni-Mn-In Heusler alloys -- A comparative study

Franziska Scheibel, Wei Liu, Lukas Pfeuffer +6

A multi-stimuli cooling cycle can be used to increase the cyclic caloric performance of multicaloric materials like Ni-Mn-In Heusler alloys. However, the use of a uniaxial compress…

cond-mat.mtrl-sci2023★ 45 cited

Dissipation losses limiting first-order phase transition materials in cryogenic caloric cooling: A case study on all-d-metal Ni(-Co)-Mn-Ti Heusler alloys

Benedikt Beckmann, David Koch, Lukas Pfeuffer +11

Ni-Mn-based Heusler alloys, in particular all-d-metal Ni(-Co)-Mn-Ti, are highly promising materials for energy-efficient solid-state refrigeration as large multicaloric effects can…

physics.app-ph2022★ 32 cited

Polymer-bonded magnets produced by laser powder bed fusion: Influence of powder morphology, filler fraction and energy input on the magnetic and mechanical properties

Kilian Schäfer, Tobias Braun, Stefan Riegg +2

Bonded permanent magnets are key components in many energy conversion, sensor and actuator devices. These applications require high magnetic performance and freedom of shape. With…

cond-mat.mtrl-sci2021★ 79 cited

Microstructure engineering of metamagnetic Ni-Mn-based Heusler compounds by Fe-doping: A roadmap towards excellent cyclic stability combined with large elastocaloric and magnetocaloric effects

Lukas Pfeuffer, Jonas Lemke, Navid Shayanfar +9

Ni-Mn-based metamagnetic shape-memory alloys exhibit a giant thermal response to magnetic fields and uniaxial stress which can be utilized in single caloric or multicaloric cooling…

cond-mat.str-el2016★ 8 cited

Evidence for a Ru Kondo Lattice in LaCuRuO

Stefan Riegg, Sebastian Widmann, Betina Meir +7

Rare -electron derived heavy-fermion properties of the solid-solution series LaCuRuTiO were studied for by resistivity, susceptibility,…

cond-mat.str-el2012★ 18 cited

Dielectric signature of charge order in lanthanum nickelates

P. Sippel, S. Krohns, E. Thoms +7

Three charge-ordering lanthanum nickelates La2-xAxNiO4, substituted with specific amounts of A = Sr, Ca, and Ba to achieve commensurate charge order, are investigated using broadba…

cond-mat.mtrl-sci2010★ 31 cited

On the magnetism of Ln{2/3}Cu{3}Ti{4}O{12} (Ln = lanthanide)

A. Dittl, S. Krohns, J. Sebald +7

The magnetic and thermodynamic properties of the complete LnCuTiO series were investigated. Here stands for the lanthanides La, Ce, Pr, Nd, Sm, Eu, Gd,…

cond-mat.str-el2010★ 490 cited

Colossal dielectric constants in transition-metal oxides

P. Lunkenheimer, S. Krohns, S. Riegg +3

Many transition-metal oxides show very large ("colossal") magnitudes of the dielectric constant and thus have immense potential for applications in modern microelectronics and for…

cond-mat.mtrl-sci2009★ 73 cited

Colossal dielectric constants: A common phenomenon in CaCu3Ti4O12 related materials

J. Sebald, S. Krohns, P. Lunkenheimer +4

In the present work we demonstrate that in addition to the well-known colossal-dielectric-constant material CaCu3Ti4O12 also various members of the series Ln2/3Cu3Ti4O12 with Ln =…