Geometric origin of magnetic frustration in the μ-Al4Mn giant-unit-cell complex intermetallic
作者： S Jazbec , Z Jagličić , S Vrtnik , M Wencka , M Feuerbacher
DOI: 10.1088/0953-8984/23/4/045702
关键词:
摘要: The structurally ordered ?-Al4Mn complex intermetallic phase with 563 atoms in the giant unit cell shows typical broken-ergodicity phenomena of a magnetically frustrated spin system. low-field zero-field-cooled and field-cooled magnetic susceptibilities show splitting below freezing temperature Tf = 2.7?K. ac susceptibility exhibits frequency-dependent cusp, associated Tf(?). decay thermoremnant magnetization is logarithmically slow time dependence on aging tw cooling field Hfc an ultraslow out-of-equilibrium dynamics nonergodic system that approaches thermal equilibrium, but can never reach it experimentally accessible scale. above features classify intermettalic among glasses. origin frustration interactions was found to be geometrical due distribution significant fraction Mn spins triangles antiferromagnetic coupling. geometrically glass.
harvard.edu
sci-hub.se 参考文章(24)
J A Mydosh, Spin Glasses CRC Press. ,(1993) , 10.1201/9781482295191
M. A. Chernikov, A. Bernasconi, C. Beeli, A. Schilling, H. R. Ott, Low-temperature magnetism in icosahedralAl70Mn9Pd21 Physical Review B. ,vol. 48, pp. 3058- 3065 ,(1993) , 10.1103/PHYSREVB.48.3058
C. B. Shoemaker, D. A. Keszler, D. P. Shoemaker, Structure of μ‐MnAl4 with composition close to that of quasicrystal phases Acta Crystallographica Section B-structural Science. ,vol. 45, pp. 13- 20 ,(1989) , 10.1107/S0108768188010481
A. S. Wills, V. Dupuis, E. Vincent, J. Hammann, R. Calemczuk, Aging in a topological spin glass Physical Review B. ,vol. 62, ,(2000) , 10.1103/PHYSREVB.62.R9264
By A. Niikura, A. P. Tsai, A. Inoue, T. Masumoto, Stable Zn[sbnd]Mg[sbnd]rare[sbnd]earth face-centred icosahedral alloys with pentagonal dodecahedral solidification morphology Philosophical Magazine Letters. ,vol. 69, pp. 351- 355 ,(1994) , 10.1080/09500839408242444
Clara Brink Shoemaker, On the relationship between μ-MnAl4.12 and the decagonal Mn–Al phase Philosophical Magazine Part B. ,vol. 67, pp. 869- 881 ,(1993) , 10.1080/13642819308219332
M Heggen, M Feuerbacher, Jovica Ivkov, Petar Popčević, Ivo Batistić, Ana Smontara, Marko Jagodič, Zvonko Jagličić, J Janovec, M Wencka, J Dolinšek, Anisotropic physical properties of the Taylor-phase T -Al 72.5 Mn 21.5 Fe 6.0 complex intermetallic Physical Review B. ,vol. 81, pp. 184204- ,(2010) , 10.1103/PHYSREVB.81.184204
A. Lafond, A. Meerschaut, J. Rouxel, J. L. Tholence, A. Sulpice, SPIN-GLASS-LIKE BEHAVIOR OF THE INCOMMENSURATE COMPOSITE PHASE LACRS3 Physical Review B. ,vol. 52, pp. 1112- 1119 ,(1995) , 10.1103/PHYSREVB.52.1112
J. Dolinšek, Z. Jagličić, M. A. Chernikov, I. R. Fisher, P. C. Canfield, Unusual spin-glass phase in icosahedral Tb-Mg-Zn quasicrystals Physical Review B. ,vol. 64, pp. 224209- ,(2001) , 10.1103/PHYSREVB.64.224209
J. C. Lasjaunias, A. Sulpice, N. Keller, J. J. Préjean, M. de Boissieu, Magnetic and calorimetric study of a single grain of quasicrystalline Al-Pd-Mn Physical Review B. ,vol. 52, pp. 886- 893 ,(1995) , 10.1103/PHYSREVB.52.886