X‐ray magnetic spectroscopy at high pressure: performance of SPring‐8 BL39XU | Zendy

Kawamura Naomi | Zendy; Ishimatsu Naoki | Zendy; Maruyama Hiroshi | Zendy

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X‐ray magnetic spectroscopy at high pressure: performance of SPring‐8 BL39XU

Author(s) -

Kawamura Naomi,

Ishimatsu Naoki,

Maruyama Hiroshi

Publication year - 2009

Publication title -

journal of synchrotron radiation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.172

H-Index - 99

ISSN - 1600-5775

DOI - 10.1107/s0909049509034700

Subject(s) - spring (device) , high pressure , spring 8 , spectroscopy , materials science , nuclear magnetic resonance spectroscopy , nuclear magnetic resonance , chemistry , physics , engineering physics , optics , thermodynamics , astronomy , beam (structure) , beamline

An X‐ray magnetic circular dichroism experiment under multiple extreme conditions, 2 ≤ T ≤ 300 K, H ≤ 10 T and P ≤ 50 GPa, has been achieved at SPring‐8 BL39XU. A combination of the high‐brilliant X‐ray beam and a helicity‐controlled technique enabled the dichroic signal to be recorded with high accuracy. The performance is shown by the outcome of pressure‐induced ferromagnetism in Mn 3 GaC and the pressure‐suppressed Co moment in ErCo 2 . Two technical developments, a tiny diamond anvil cell inserted into a superconducting magnet and in situ pressure calibration using 90° Bragg diffraction from a NaCl marker, are also presented. X‐ray magnetic spectroscopy under multiple extreme conditions is now opening a new approach to materials science.

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