کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1816772 | 1525271 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic order and charge separation in 2D distorted triangular lattice systems βâ²-X[Pd(dmit)2]2
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Magnetic properties of organic compounds with two-dimensional distorted triangular lattice structure, βâ²-X[Pd(dmit)2]2 are investigated by the muon spin relaxation (μSR) method, where X is counter cation. We have previously reported that the X=Me4P salt (1, Me=CH3) shows a very sharp antiferromagnetic (AFM) transition at 39.3 K. We have carried out μSR measurements on other two Pd(dmit)2 salts: the X=Et2Me2P salt (2, Et=C2H5) and the Et2Me2Sb salt (3). In compound 2, an AFM transition at lower TN=15K with a smaller enhancement of the muon spin relaxation is observed, indicating a larger effect of the spin frustration than in 1. The zero-field μSR time spectra of 3 showed an enhancement of the relaxation below â¼80K, but did not show precessions. Recently, it has been suggested that this salt undergoes a phase transition to a charge-separated nonmagentic state. It is expected that the enhancement of the relaxation is related to the spin localization attributable to the charge separation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volumes 374â375, 31 March 2006, Pages 122-125
Journal: Physica B: Condensed Matter - Volumes 374â375, 31 March 2006, Pages 122-125
نویسندگان
S. Ohira, M. Tamura, R. Kato, M. Iwasaki,