Magnetic relaxation phenomena in Cu$_2$OSeO$_3$ and phase diagram

F. Qian; H. Wilhelm; A. Aqeel; T. T. M. Palstra; A. J. E. Lefering; E. H. Brück; C. Pappas

Magnetic relaxation phenomena in Cu$_2$OSeO$_3$ and phase diagram

Strongly Correlated Electrons 2016-07-28 v1

Authors: F. Qian , H. Wilhelm , A. Aqeel , T. T. M. Palstra , A. J. E. Lefering , E. H. Brück , C. Pappas

Abstract

We present an investigation of the magnetic field-temperature phase diagram of Cu $_2$ OSeO $_3$ based on DC magnetisation and AC susceptibility measurements covering a broad frequency range of four orders of magnitude, from very low frequencies reaching 0.1 Hz up to 1 kHz. The experiments were performed in the vicinity of $T_C=58.2$ K and around the skyrmion lattice A-phase. At the borders between the different phases the characteristic relaxation times reach several milliseconds and the relaxation is non-exponential. Consequently the borders between the different phases depend on the specific criteria and frequency used and an unambiguous determination is not possible.

Keywords

magnetic relaxation phase diagram Cu2OSeO3 AC susceptibility skyrmion lattice

Cite

@article{arxiv.1607.08177,
  title  = {Magnetic relaxation phenomena in Cu$_2$OSeO$_3$ and phase diagram},
  author = {F. Qian and H. Wilhelm and A. Aqeel and T. T. M. Palstra and A. J. E. Lefering and E. H. Brück and C. Pappas},
  journal= {arXiv preprint arXiv:1607.08177},
  year   = {2016}
}

Comments

10 pages, 12 figures, accepted for publication in Physical Review B (2016)

Magnetic relaxation phenomena in Cu$_2$OSeO$_3$ and phase diagram

Abstract

Keywords

Cite

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