Magnetocaloric materials: From micro-to nanoscale

JH Belo, AL Pires, JP Araujo… - Journal of Materials …, 2019 - cambridge.org
Twenty one years ago, the discovery of the giant magnetocaloric effect (GMCE) at room
temperature completely revolutionized the magnetocaloric materials field demonstrating the …

Picosecond ultrasonics with a free-running dual-comb laser

J Pupeikis, B Willenberg, F Bruno, M Hettich… - Optics …, 2021 - opg.optica.org
We present a free-running 80-MHz dual-comb polarization-multiplexed solid-state laser
which delivers 1.8 W of average power with 110-fs pulse duration per comb. With a high …

Dynamics of collective modes in an unconventional charge density wave system BaNi2As2

AR Pokharel, V Grigorev, A Mejas, T Dong… - Communications …, 2022 - nature.com
BaNi2As2 is a non-magnetic analogue of BaFe2As2, the parent compound of a prototype
pnictide high-temperature superconductor, displaying superconductivity already at ambient …

Modulations in martensitic Heusler alloys originate from nanotwin ordering

ME Gruner, R Niemann, P Entel, R Pentcheva… - Scientific reports, 2018 - nature.com
Heusler alloys exhibiting magnetic and martensitic transitions enable applications like
magnetocaloric refrigeration and actuation based on the magnetic shape memory effect …

Geometry of adaptive martensite in Ni-Mn-based Heusler alloys

R Niemann, S Fähler - Journal of Alloys and Compounds, 2017 - Elsevier
Modulated martensites play an important role in magnetic shape memory alloys, because all
functional properties are closely connected to the twin microstructure and the phase …

Observation of magnetic domain evolution in constrained epitaxial Ni–Mn–Ga thin films on MgO (0 0 1) substrate

B Yang, I Soldatov, F Chen, Y Zhang, Z Li, H Yan… - Journal of Materials …, 2022 - Elsevier
Abstract Epitaxial Ni–Mn–Ga thin films have promising application potential in micro-electro-
mechanical sensing and actuation systems. To date, large abrupt magnetization changes …

Giant high temperature superelasticity in Ni53Mn24Ga21Co1Cu1 microwires

J Zhang, Z Ding, R Hou, J Gao, J Zhu - Intermetallics, 2020 - Elsevier
Abstract Ni-Mn-Ga is commonly used as a room temperature shape memory alloy. With the
do** of Co and Cu, its phase transformation temperature increased to around 500 K …

Large reversible magnetostrain in polycrystalline Ni50Mn33In17− xGax

SY Yu, AJ Gu, SS Kang, SJ Hu, ZC Li, ST Ye… - Journal of Alloys and …, 2016 - Elsevier
The structure and strain behavior associated with martensitic transformation for
polycrystalline Ni 50 Mn 33 In 17− x Ga x (x= 4, 5, 7, 8) have been investigated. All samples …

Martensitic transformation and shape memory effect in Pd50Mn50− xGax alloys

T Ito, Y Kimura, X Xu, K Han, RY Umetsu… - Journal of Alloys and …, 2019 - Elsevier
Martensitic transformation behaviors, microstructures, magnetic properties, and the shape
memory effect (SME) were investigated for Pd 50 Mn 50− x Ga x (0≦ x≦ 25) alloys …

Nonthermal Transport of Energy Driven by Photoexcited Carriers in Switchable Solid States of

R Gu, T Perrault, V Juvé, G Vaudel, M Weis, A Bulou… - Physical Review …, 2021 - APS
Phase-change alloys have seen widespread use, from rewritable optical disks to current
interest in their use in emerging neuromorphic computing architectures. In spite of this …