Spin Frustration and Magnetic Ordering from One-Dimensional Stacking of Cr3 Triangles in TiCrIr2B2.
Spin Frustration and Magnetic Ordering from One-Dimensional Stacking of Cr3 Triangles in TiCrIr2B2.
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TiCrIr2B2 中 Cr3 三角形一维堆叠的自旋受挫和磁有序
DOI:
10.1021/acs.inorgchem.6b00714
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发表时间:
2016
影响因子:
4.6
通讯作者:
B. P. T. Fokwa
中科院分区:
文献类型:
--
作者:
M. Kuepers;L. Lutz-Kappelman;Y. Zhang;G. J. Miller;B. P. T. Fokwa
Spin-frustrated chains of Cr3triangles are found in the new metal boride TiCrIr2B2by synergistic experimental and theoretical investigations. Although magnetic ordering is found at 275 K, competing ferro- and anti-ferromagnetic interactions coupled with spin frustration induce a rather small total magnetic moment (0.05 μBat 5 T), and density functional theory (DFT) calculations propose a canted, nonlinear magnetic ground-state ordering in the new phase. TiCrIr2B2crystallizes in the hexagonal Ti1+xOs2–xRuB2structure type (space groupP6̅2m, No. 189, Pearson symbolhP18). The structure contains trigonal planar B4boron fragments with B–B distances of 1.76(3) Å alternating along thec-direction with Cr3triangles with intra- and intertriangle Cr–Cr distances of 2.642(9) and 3.185(1) Å, respectively. Magnetization measurements of TiCrIr2B2reveal ferrimagnetic behavior and a large, negative Weiss constant of −750 K. DFT calculations demonstrate a strong site preference of Cr for the triangle sites, as well as magnetic frustration due to indirect anti-ferromagnetic interactions within the Cr3triangles.
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影响因子:
4.6
作者:
Q. Zheng;M. Kohout;R. Gumeniuk;N. Abramchuk;H. Borrmann;Y. Prots;U. Burkhardt;W. Schnelle;L. Akselrud;H. Gu;A. Leithe-Jasper;Y. Grin
通讯作者:
Q. Zheng;M. Kohout;R. Gumeniuk;N. Abramchuk;H. Borrmann;Y. Prots;U. Burkhardt;W. Schnelle;L. Akselrud;H. Gu;A. Leithe-Jasper;Y. Grin
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
E. A. Nagelschmitz;W. Jung
通讯作者:
W. Jung
影响因子:
4.6
作者:
P. R. N. Misse;M. Gilleßen;B. Fokwa
通讯作者:
B. Fokwa
影响因子:
3.3
作者:
C. Goerens;Jakoah Brgoch;G. Miller;B. Fokwa
通讯作者:
B. Fokwa
DOI:
10.1524/zkri.2010.1239
发表时间:
2010
期刊:
Zeitschrift für Kristallographie - Crystalline Materials
影响因子:
--
作者:
B. Fokwa;C. Goerens;M. Gilleßen
通讯作者:
M. Gilleßen