Pith. sign in

REVIEW

Ultrafast demagnetization of Pt magnetic moment in L1{}₀-FePt probed by hard x-ray free electron laser

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1810.02551 v1 pith:65A3Z77R submitted 2018-10-05 cond-mat.mtrl-sci

Ultrafast demagnetization of Pt magnetic moment in L1{}₀-FePt probed by hard x-ray free electron laser

Kohei Yamamoto , Yuya Kubota , Motohiro Suzuki , Yasuyuki Hirata , Kou Takubo , Yohei Uemura , Ryo Fukaya , Kenta Tanaka
show 10 more authors
Wataru Nishimura Takuo Ohkochi Tetsuo Katayama Tadashi Togashi Kenji Tamasaku Makina Yabashi Yoshihito Tanaka Takeshi Seki Koki Takanashi Hiroki Wadati
This is my paper
classification cond-mat.mtrl-sci
keywords magnetictextrmx-raydecaydemagnetizationelectronfeptfree
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

We demonstrate ultrafast magnetization dynamics in a 5d transition metal using circularly-polarized x-ray free electron laser in the hard x-ray region. A decay time of light-induced demagnetization of L1${}_0$-FePt was determined to be $\tau_\textrm{Pt} = 0.6\ \textrm{ps}$ using time-resolved x-ray magnetic circular dichroism at the Pt L${}_3$ edge, whereas magneto-optical Kerr measurements indicated the decay time for total magnetization as $\tau_\textrm{total} = 0.1\ \textrm{ps}$. A transient magnetic state with the photo-modulated magnetic coupling between the 3d and 5d elements is firstly demonstrated.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.