Minority-spin t(2g) states and the degree of spin polarization in ferromagnetic metallic La(2-2x)Sr(1+2x)Mn(2)O(7) (x = 0.38).

Minority-spin t(2g) states and the degree of spin polarization in ferromagnetic metallic La(2-2x)Sr(1+2x)Mn(2)O(7) (x = 0.38).
复制标题

DOI:
10.1038/srep03167
复制
发表时间:
2013-11-07
期刊:
影响因子:
4.6
通讯作者:
Dessau, D. S.
Dessau, D. S.
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Sun, Z.;Wang, Q.;Douglas, J. F.;Lin, H.;Sahrakorpi, S.;Barbiellini, B.;Markiewicz, R. S.;Bansil, A.;Fedorov, A. V.;Rotenberg, E.;Zheng, H.;Mitchell, J. F.;Dessau, D. S.

文献摘要

参考文献

被引文献

相似文献

半金属是具有一个自旋取向的导电电子的材料。这种类型的物质已被广泛搜索,由于迷人的物理学以及自旋电子学的潜在应用。铁磁锰氧化物被认为是很好的候选者,尽管没有确凿的证据证明这一观点。在这里,我们证明了铁磁体La 2 − 2xSr 1 + 2xMn 2 O 7(x = 0.38)具有少数自旋态,这对锰氧化物是否是真正的半金属提出了挑战。然而,当基于电子能带结构考虑电子输运性质时,我们发现La 2 - 2xSr 1 + 2xMn 2 O 7(x = 0.38)基本上可以表现为完全的半金属。
A half-metal is a material with conductive electrons of one spin orientation. This type of substance has been extensively searched for due to the fascinating physics as well as the potential applications for spintronics. Ferromagnetic manganites are considered to be good candidates, though there is no conclusive evidence for this notion. Here we show that the ferromagnet La2−2xSr1+2xMn2O7 (x = 0.38) possesses minority-spin states, challenging whether any of the manganites may be true half-metals. However, when electron transport properties are taken into account on the basis of the electronic band structure, we found that the La2−2xSr1+2xMn2O7 (x = 0.38) can essentially behave like a complete half metal.
DOI: 10.1126/science.1059255
发表时间: 2001-05-25
期刊: SCIENCE
影响因子: 56.9
作者:
Chuang, YD;Gromko, AD;Tokura, Y
通讯作者: Tokura, Y
DOI: 10.1038/33883
发表时间: 1998-04-23
期刊: NATURE
影响因子: 64.8
作者:
Park, JH;Vescovo, E;Venkatesan, T
通讯作者: Venkatesan, T
DOI: 10.1103/physrevb.60.10758
发表时间: 1999-10-15
期刊: PHYSICAL REVIEW B
影响因子: 3.7
作者:
de Boer, PK;de Groot, RA
通讯作者: de Groot, RA
DOI: 10.1038/nature04273
发表时间: 2005-11-24
期刊: NATURE
影响因子: 64.8
作者:
Mannella, N;Yang, WL;Shen, ZX
通讯作者: Shen, ZX
DOI: 10.1103/physrevb.63.184433
发表时间: 2001-05-01
期刊: PHYSICAL REVIEW B
影响因子: 3.7
作者:
Nadgorny, B;Mazin, II;Mukovskii, Y
通讯作者: Mukovskii, Y