Journal
PHYSICAL REVIEW LETTERS
Volume 125, Issue 7, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.125.076602
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Funding
- German Academic Exchange Service (DAAD) via a PROMOS scholarship - German Federal Ministry of Education and Research (BMBF)
- JST CREST (Japan) [JPMJCR1874]
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The topological Hall effect (THE) and its thermoelectric counterpart, the topological Nernst effect (TNE), are hallmarks of the skyrmion lattice phase (SkL). We observed the giant TNE of the SkL in centrosymmetric Gd2PdSi3, comparable in magnitude to the largest anomalous Nernst signals in ferromagnets. Significant enhancement (suppression) of the THE occurs when doping electrons (holes) to Gd2PdSi3. On the electron-doped side, the topological Hall conductivity approaches the characteristic threshold similar to 1000 (Omega cm)(-1) for the intrinsic regime. We use the filling-controlled samples to confirm Mott's relation between TNE and THE and discuss the importance of Gd-5d orbitals for transport in this compound.
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