Open AccessMagnetic‐field modulation experiments on colossal magnetoresistance samples: first results
Author(s) -
Bridges Frank,
Brown Graham,
Cao Daliang,
Anderson Mark
Publication year - 2001
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/s0909049500015053
Subject(s) - magnetic field , modulation (music) , field (mathematics) , physics , magnetoresistance , measure (data warehouse) , energy (signal processing) , sensitivity (control systems) , computational physics , condensed matter physics , nuclear magnetic resonance , computer science , mathematics , electronic engineering , acoustics , quantum mechanics , database , pure mathematics , engineering
Recently we have observed a small change in the width, σ, of the Mn‐O pair distribution function when a 1T magnetic field is applied. To improve our sensitivity to magnetic‐field‐induced changes, we have developed a magnetic field modulation technique. At each X‐ray energy we collect two data points, one with field on and the other with field off; as a result we collect two scans simultaneously. The difference in these two traces provides a measure of the magnetic‐field‐induced change. The results for the modulation measurements will be compared to the earlier work using static magnetic fields.