28 citations · 64 across the 10 of their papers we have counts for
10 papers
Observation of nonlocal ferron-drag thermoelectricity
Takuma Itoh, Takamasa Hirai, Ping Tang +8
The Peltier effect induces a heat current when a charge current passes through a conductor. Since a charge current is conserved at the junction between two different conductors, th…
Reconstruction-Dependent Imaging, Reactivity and Local Reduction of the CeO(100) surface
Kyungmin Kim, Manuel González Lastre, Estefanía Fernández-Villanueva +7
The possibility of mapping the local reactivity and reduction state to the atomic structure of chemically active oxide surfaces opens new avenues for further understanding of catal…
Structural heterogeneity-induced enhancement of transverse magneto-thermoelectric conversion revealed by thermoelectric imaging in functionally graded materials
Sang J. Park, Ravi Gautam, Takashi Yagi +3
Functionally graded materials (FGMs) exhibit continuous property variations that enable unique functionalities and provide efficient platforms for systematic property optimization.…
Trans-scale spin Seebeck effect in nanostructured bulk composites based on magnetic insulator
Sang J. Park, Keisuke Hirata, Hossein Sepehri-Amin +3
The spin Seebeck effect (SSE) enables thermoelectric conversion through thermally generated spin currents in magnetic materials, offering a promising transverse geometry for scalab…
Near-surface Defects Break Symmetry in Water Adsorption on CeO(111)
Oscar Custance, Manuel González Lastre, Kyungmin Kim +7
Water interactions with oxygen-deficient cerium dioxide (CeO) surfaces are central to hydrogen production and catalytic redox reactions, but the atomic-scale details of how def…
High-throughput development of flexible amorphous materials showing large anomalous Nernst effect via automatic annealing and thermoelectric imaging
Sang J. Park, Ravi Gautam, Abdulkareem Alasli +5
This work demonstrates high-throughput screening of flexible magnetic materials for efficient transverse thermoelectric conversion based on the anomalous Nernst effect (ANE). The a…
Simultaneous achievement of large anomalous Nernst effect and reduced thermal conductivity in sintered polycrystalline topological Heusler ferromagnets
Koichi Oyanagi, Hossein Sepehri-Amin, Kenta Takamori +9
This study reports the observation of the large anomalous Nernst effect in polycrystalline ferromagnetic CoMnGa (CMG) slabs prepared by a spark plasma sintering method. By op…
Designing flexible hard magnetic materials for zero-magnetic-field operation of the anomalous Nernst effect
Sang J. Park, Rajkumar Modak, Ravi Gautam +6
The global shift towards a carbon-neutral society has accelerated the demand for green energy, driving research into efficient technologies for harvesting energy from low-grade was…
Hybridizing anomalous Nernst effect in artificially tilted multilayer based on magnetic topological material
Takamasa Hirai, Fuyuki Ando, Hossein Sepehri-Amin +1
Transverse thermoelectric conversion holds significant potential in addressing complex challenges faced by classical Seebeck/Peltier modules. A promising transverse thermoelectric…
Multifunctional composite magnet realizing record-high transverse thermoelectric generation
Fuyuki Ando, Takamasa Hirai, Abdulkareem Alasli +4
Permanent magnets are used in various products and essential for human society. If omnipresent permanent magnets could directly convert heat into electricity, they would lead to in…