| 5 | 1/1 | 返回列表 |
| 查看: 1121 | 回復(fù): 4 | |||
| 本帖產(chǎn)生 1 個(gè) 翻譯EPI ,點(diǎn)擊這里進(jìn)行查看 | |||
| 當(dāng)前只顯示滿足指定條件的回帖,點(diǎn)擊這里查看本話題的所有回帖 | |||
[交流]
求助:翻譯PRB中理論的一部分
|
|||
|
We have found that AgBixSb1−xTe2 alloys exhibit D4 ordering of Ag vs (Bi,Sb) cations and are fully miscible down to the room temperature. Generally, Ag1−x−yBixSbyTe2 alloys are miscible if constrained to the rocksalt lattice. Without such a constraint, nonrocksalt phases become thermodynamically stable at all compositions at sufficiently low temperatures. The band structures of AgSbTe2 and AgBiTe2 share many similarities; in particular, in both compounds the dispersion around the VBM is reasonably approximated by Eq. (1). However, stronger spin-orbit coupling in Bi-containing materials changes some band-structure features by up to ~1 eV, in particular, leading to a different absorption edge for direct optical transitions and a second gap at * +1.3 eV seen in AgBiTe2 dispersion. The topology of the Fermi surface is sensitive to the hole doping. A detailed analysis of the experimental de Haas-van Alphen data based on the calculated band structure suggests the Fermi level in naturally doped samples is located around ** meV, not far from the value estimated in Ref. 20. |


榮譽(yù)版主 (文壇精英)
拼搏到無能為力,努力到感動(dòng)自
|
我們發(fā)現(xiàn),AgBixSb1 - xTe2合金顯示了 銀與其相對(duì)的鉍,銻陽離子是處于一種四維的空間排序,并且這些合金粒子在室溫的條件下就很容易互混在一起的。 一般來說,Ag1−x−yBixSbyTe2 合金的易于互混性是因?yàn)樗鼈兊膸r鹽礦格結(jié)構(gòu)! 如果沒有這個(gè)礦格的制約 ,比如非巖鹽相,它們?cè)谧銐虻偷臏囟认碌乃谐煞质蔷哂袩岱(wěn)定性的。此外,AgSbTe2和AgBiTe2的能帶結(jié)構(gòu)也存在很多的相似之處;特別是,對(duì)于這兩種物質(zhì)的各成分的分散情況(VBM-垂直布里奇曼法)可以通過合理的模擬,如式子1所示。然而,強(qiáng)自旋軌道耦合的雙載材料改變一些帶結(jié)構(gòu)特征達(dá) 〜1伏特,特別是導(dǎo)致了不同的吸收邊發(fā)生了直接光變,而且也發(fā)現(xiàn)在第二能帶(在*+1.3伏特)有AgBiTe2分散的情況。該費(fèi)米表面的拓?fù)浣Y(jié)構(gòu)對(duì)孔洞的摻雜很敏感。我們同時(shí)也通過能帶結(jié)構(gòu)的計(jì)算來詳細(xì)地闡述了如何通過實(shí)驗(yàn)來分析哈斯凡阿爾芬基礎(chǔ)的數(shù)據(jù)。結(jié)果表明在費(fèi)米能級(jí)自然摻雜位于**毫電子伏特左右,我們所得的數(shù)據(jù)與參考文獻(xiàn)20的結(jié)果很相似! [ Last edited by lxuyan on 2010-4-20 at 18:38 ] |

| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 317分 一志愿南理工材料工程 本科湖工大 求調(diào)劑 +9 | 芋泥小鈴鐺 2026-03-28 | 9/450 |
|
|---|---|---|---|---|
|
[考研] 085600,專業(yè)課化工原理,321分求調(diào)劑 +5 | 大饞小子 2026-03-28 | 5/250 |
|
|
[考研] 305求調(diào)劑 +8 | RuiFairyrui 2026-03-28 | 8/400 |
|
|
[考研] 0703化學(xué) +11 | 妮妮ninicgb 2026-03-27 | 11/550 |
|
|
[考研] 0703化學(xué)調(diào)劑,求導(dǎo)師收 +9 | 天天好運(yùn)來上岸?/a> 2026-03-24 | 10/500 |
|
|
[考研] 083000學(xué)碩274求調(diào)劑 +8 | Li李魚 2026-03-26 | 8/400 |
|
|
[考研] 壓國家一區(qū)線,求導(dǎo)師收留,有恩必謝! +7 | 迷人的哈哈 2026-03-28 | 7/350 |
|
|
[考研] 0703本科鄭州大學(xué)求調(diào)劑 +3 | nhj_ 2026-03-25 | 3/150 |
|
|
[考研] 【求調(diào)劑】085601材料工程專碩 | 總分272 | +6 | 腳滑的守法公民 2026-03-27 | 6/300 |
|
|
[考研] 一志愿南昌大學(xué)324求調(diào)劑 +7 | hanamiko 2026-03-27 | 7/350 |
|
|
[考研] 一志愿上海理工能源動(dòng)力(085800)310分求調(diào)劑 +3 | zhangmingc 2026-03-27 | 4/200 |
|
|
[考博] 26申博 +3 | 加油沖。 2026-03-26 | 3/150 |
|
|
[考研] 307求調(diào)劑 +8 | 超級(jí)伊昂大王 2026-03-24 | 9/450 |
|
|
[考研] 求調(diào)劑323材料與化工 +7 | 1124361 2026-03-24 | 7/350 |
|
|
[考研] 081200-11408-276學(xué)碩求調(diào)劑 +4 | 崔wj 2026-03-26 | 4/200 |
|
|
[考研] 材料考研求調(diào)劑 +3 | Dendel 2026-03-23 | 6/300 |
|
|
[考研] 290分調(diào)劑求助 +3 | 吉祥止止陳 2026-03-25 | 3/150 |
|
|
[考研] 【2026考研調(diào)劑】制藥工程 284分 求相關(guān)專業(yè)調(diào)劑名額 +4 | 袁奐奐 2026-03-25 | 8/400 |
|
|
[考研] 0854電子信息求調(diào)劑 +7 | α____ 2026-03-22 | 9/450 |
|
|
[考研] 285求調(diào)劑 +3 | AZMK 2026-03-24 | 3/150 |
|