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miloyy

木虫 (正式写手)

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418783132(金币+1):鼓励交流 2010-08-14 00:07:26
Hector8275(金币+20): 2010-08-14 09:04:21
guxue(金币+2):很详细啊,鼓励交流 2010-08-14 13:54:59
引用回帖:
Originally posted by Hector8275 at 2010-08-13 13:42:39:

最近投了一篇文章,我做模拟,审稿人给的意见是BFO是spiral spin structure,而我只是做了antiferromagnetic,审稿人说这两者差别很大,要求重新做计算。我看了一些文献都是只做反铁磁性,如果想要模拟这种螺旋 ...

是的,我也没看到过加入spiral modulation的计算,需要的晶胞太大了。你就这么跟审稿人明说就是了。最近刚看到有篇PRL(http://prl.aps.org/abstract/PRL/v103/i4/e047204)也说道这个问题,这是原文:
Note that BFO bulk is in fact nearly G-type antiferromagnetic (AFM), since it rather exhibits a cycloidal arrangement of the magnetic moments
with a length around 640 A ° [6,15]. Such cycloid does not
exist in BFO films [8], and is not found in our simulations
for bulks (because it likely requires much larger supercells
than those used here or additional interactions to be incorporated
into Etot). Our results should thus be valid for
relaxed BFO films. They also should qualitatively apply to
BFO bulks, by making a one-to-one correspondence between the field-induced directions of the AFM vector to be
predicted here and the directions of propagation of the
cycloid to be measured.
11楼2010-08-13 23:48:52
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Hector8275

金虫 (正式写手)

引用回帖:
Originally posted by miloyy at 2010-08-13 23:48:52:


是的,我也没看到过加入spiral modulation的计算,需要的晶胞太大了。你就这么跟审稿人明说就是了。最近刚看到有篇PRL(http://prl.aps.org/abstract/PRL/v103/i4/e047204)也说道这个问题,这是原 ...

万分感谢,我把文章下载下来学习一下。
12楼2010-08-14 09:04:55
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