2020/04/20 by Han Zhang, Qing Huang, Lin Hao +5
Materials Science · Physics and Astronomy · #Condensed matter physics #Electrical resistivity and conductivity #Ferromagnetism #Lattice (music) #Magnet #Magnetic and transport properties of perovskites and related materials #Magnetic field #Magnetic properties of thin films #Magnetization #Magnetoresistance #Paramagnetism #Phase (matter) #Phase diagram #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Skyrmion #cond-mat.str-el
paper · pdf · doi:10.1088/1367-2630/aba650
arxiv created 2020/04/20 · openalex created_date 2020/05/01 · openalex publication_date 2020/07/15 · arxiv updated 2020/11/19 · openalex updated_date 2026/08/05
Abstract We performed a systematic study of the temperature- and field-dependence of magnetization and resistivity of Gd 2 PdSi 3 , which is a centrosymmetric skyrmion crystal. We show that a phase diagram can be constructed based on the anomalous magnetoresistance with one-to-one correspondence among all the feature, while the DC magnetization behavior is consistent with the reported phase diagram based on AC susceptibility. In addition, the crossover boundary from a paramagnetic state into the field-induced ferromagnetic state is also identified. Our results suggest that the ferromagnetic spin fluctuations above the Néel temperature play a key role in the high sensitivity of the resistivity anomalies to magnetic field, pointing to the rich interplay of different magnetic correlations at zero and finite wave vectors underlying the skyrmion lattice in this frustrated itinerant magnet.