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@ARTICLE{Frandsen:819969,
author = {Frandsen, Benjamin A. and Gong, Zizhou and Terban, Maxwell
W. and Banerjee, Soham and Chen, Bijuan and Jin, Changqing
and Feygenson, Mikhail and Uemura, Yasutomo J. and Billinge,
Simon J. L.},
title = {{L}ocal atomic and magnetic structure of dilute magnetic
semiconductor ({B}a , {K}) ({Z}n , {M}n)$_{2}$ {A}s$_{2}$},
journal = {Physical review / B},
volume = {94},
number = {9},
issn = {2469-9950},
address = {Woodbury, NY},
publisher = {Inst.},
reportid = {FZJ-2016-05536},
pages = {094102},
year = {2016},
abstract = {We have studied the atomic and magnetic structure of the
dilute ferromagnetic semiconductor system (Ba,K)(Zn,Mn)2As2
through atomic and magnetic pair distribution function
analysis of temperature-dependent x-ray and neutron total
scattering data. We detected a change in curvature of the
temperature-dependent unit cell volume of the average
tetragonal crystallographic structure at a temperature
coinciding with the onset of ferromagnetic order. We also
observed the existence of a well-defined local orthorhombic
structure on a short length scale of ≲5Å, resulting in a
rather asymmetrical local environment of the Mn and As ions.
Finally, the magnetic PDF revealed ferromagnetic alignment
of Mn spins along the crystallographic c axis, with robust
nearest-neighbor ferromagnetic correlations that exist even
above the ferromagnetic ordering temperature. We discuss
these results in the context of other experiments and
theoretical studies on this system.},
cin = {ICS-1 / Neutronenstreuung ; JCNS-1},
ddc = {530},
cid = {I:(DE-Juel1)ICS-1-20110106 / I:(DE-Juel1)JCNS-1-20110106},
pnm = {551 - Functional Macromolecules and Complexes (POF3-551) /
6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
/ 6215 - Soft Matter, Health and Life Sciences (POF3-621)},
pid = {G:(DE-HGF)POF3-551 / G:(DE-HGF)POF3-6G4 /
G:(DE-HGF)POF3-6215},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000382718900001},
doi = {10.1103/PhysRevB.94.094102},
url = {https://juser.fz-juelich.de/record/819969},
}