مرکز منطقه ای اطلاع رساني علوم و فناوري - Magnetic Structures of <formula formulatype="inline"> <img src="/images/tex/19950.gif" alt="{\\hbox {Pr}}_{0.8}{\\hbox {Lu}}_{0.2}{\\hbox {Mn}}_{2}{\\hbox {Ge}}_{2}"> </formula> and <formula formulatype="inline"> <img src="/images/tex/19951.gif" alt="{\\h

Title :

Magnetic Structures of ${\\hbox {Pr}}_{0.8}{\\hbox {Lu}}_{0.2}{\\hbox {Mn}}_{2}{\\hbox {Ge}}_{2}$ and ${\\h</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Author : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>Wang, J.L. ; Studer, A.J. ; Campbell, S.J. ; Kennedy, S.J. ; Zeng, Rong ; Dou, S.X. ; Wu, G.H.</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Author_Institution : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>Inst. for Supercond. & Electron. Mater., Univ. of Wollongong, Wollongong, NSW, Australia</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Volume : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>47</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Issue : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>10</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>fYear : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>2011</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Firstpage : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>2893</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Lastpage : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>2896</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Abstract : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>The magnetic structures of Pr<sub>0.8</sub>Lu<sub>0.2</sub>Mn<sub>2</sub>Ge<sub>2</sub> and Pr<sub>0.6</sub>Lu<sub>0.4</sub>Mn<sub>2</sub>Ge<sub>2</sub> have been determined by neutron powder diffraction over the temperature range 10-450 K. On cooling from the paramagnetic region the Mn sublattice of Pr<sub>0.8</sub>Lu<sub>0.2</sub>Mn<sub>2</sub>Ge<sub>2</sub> orders in a similar manner to Pr<i>Mn</i><sub>2</sub>Ge<sub>2</sub> with first ab-plane intralayer antiferromagnetism (AFl) below T<sub>N</sub><sup>intra</sup> ~ 397 K followed by canted ferromagnetism (Fmc) at T<sub>C</sub><sup>inter</sup> ~ 330 K and then a conical (Fmi) spin structure below T<sub>c/c</sub> ~ 192 K. The transition at T<sub>C</sub><sup>Pr</sup>=35 K with related enhancement in magnetization, is assigned to the additional ferromagnetic contribution of the Pr sublattice leading to the combined (Fmc+F(Pr)). For Pr<sub>0.6</sub>Lu<sub>0.4</sub>Mn<sub>2</sub>Ge<sub>2</sub> the transition from PM to AFl occurs at T<sub>N</sub><sup>intra</sup> ~ 375 K while the canted ferromagnetic (Fmc) state forms at T<sub>C</sub><sup>inter</sup> ~ 321 K . The increased Lu concentration of Pr<sub>0.6</sub>Lu<sub>0.4</sub>Mn<sub>2</sub>Ge<sub>2</sub> destroys the incommensurate Fmi conical spin structure of Pr<sub>0.8</sub>Lu<sub>0.2</sub>Mn<sub>2</sub>Ge<sub>2</sub>. Rather, in common with similar mixed RT<sub>2</sub>X<sub>2</sub> systems (e.g., La<sub>1-x</sub>Y<sub>x</sub>Mn<sub>2</sub>Si<sub>2</sub>, La<sub>1-x</sub>Pr<sub>x</sub>Mn<sub>2</sub>Si<sub>2</sub>), the Pr<sub>0.6</sub>Lu<sub>0.4</sub>Mn<sub>2</sub>Ge<sub>2</sub> compound exhibits co-existence of the AFmc and Fmc phases on cooling from the pure Fmc state. Transformation to the combined ferromagnetic state (Fmc+F(Pr)) takes place on c-axis ordering of the Pr sublattice at T<sub>C</sub><sup>Pr</sup> ~ 31 K . In the region of phase co-existence, the Fmc unit cell is larger than the AFmc unit cell indicating strong magneto-structural coupling with a chan- - ge of the lattice inducing a change of the magnetic state.</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Keywords : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>antiferromagnetic materials; canted spin arrangements; ferromagnetic materials; germanium alloys; lutetium alloys; magnetic transitions; magnetisation; manganese alloys; neutron diffraction; paramagnetic materials; praseodymium alloys; Pr<sub>0.6</sub>Lu<sub>0.4</sub>Mn<sub>2</sub>Ge<sub>2</sub>; Pr<sub>0.8</sub>Lu<sub>0.2</sub>Mn<sub>2</sub>Ge<sub>2</sub>; ab-plane intralayer antiferromagnetism; canted ferromagnetism; ferromagnetic state; incommensurate conical spin structure; magnetic structures; magnetization; magneto-structural coupling; neutron powder diffraction; paramagnetic region; phase transformation; sublattice; temperature 10 K to 450 K; Diffraction; Magnetic resonance imaging; Manganese; Neutrons; Perpendicular magnetic anisotropy; Temperature distribution; Magnetic phase transition; magnetic structure; neutron diffraction; rare earth transition metal compounds;</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>fLanguage : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>English</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Journal_Title : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>Magnetics, IEEE Transactions on</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Publisher : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>ieee</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>ISSN : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>0018-9464</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Type : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>jour</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>DOI : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>10.1109/TMAG.2011.2151180</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Filename : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>6028190</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Link To Document : </div><div class='valueDiv leftDirection leftAlign fullRecValueEnglish col-xs-8 col-sm-10'><a href='https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=1332226' target='_blank'>https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=1332226</a></div> </div> </div> <div class='leftDiv labelDiv leftAlign backLinkEnglish'><a href='javascript:history.back()'><img src='../CSS/Back.png' class='backImage' alt=$