清晨好,您是今天最早来到科研通的研友!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您科研之路漫漫前行!

Disordered ferromagnetic state in the Ce-Gd-Tb-Dy-Ho hexagonal high-entropy alloy

材料科学 铁磁性 晶体结构 固溶体 合金 凝聚态物理 镧系元素 结晶学 六方晶系 化学 冶金 离子 物理 有机化学
作者
S. Vrtnik,J. Lužnik,Primož Koželj,Andreja Jelen,Jože Luzar,Zvonko Jagličić,Anton Meden,M. Feuerbacher,J. Dolinšek
出处
期刊:Journal of Alloys and Compounds [Elsevier BV]
卷期号:742: 877-886 被引量:18
标识
DOI:10.1016/j.jallcom.2018.01.331
摘要

Rare-earth (RE) based hexagonal high-entropy alloys (HEAs) containing elements from the heavy half of the RE series (from Gd to Lu) are considered as prototypes of an ideal HEA, stabilized by the entropy of mixing with completely random distribution of the elements on an almost undistorted hexagonal close-packed (hcp) lattice. Here we present a study of the Ce-Gd-Tb-Dy-Ho hexagonal HEA (abbreviated as HEA-Ce), where a light-RE element Ce is alloyed with four heavy-RE elements. Since the binary mixing enthalpies of Ce with these elements are all zero, random mixing of the elements and an ideal solid solution can also be expected. Contrary to the expectations, a two-phase structure forms in the HEA-Ce, consisting of the majority hcp matrix and the rhombohedral precipitates that occupy a significant fraction of the sample's volume, with both phases having very similar composition. The “ideality” of the HEA-Ce solid solution is very likely compromised by the fact that the crystal structure of Ce is different from the structures of other elements. By performing measurements of the magnetic properties, the specific heat and the electrical resistivity in a magnetic field, we have determined the magnetic state of the HEA-Ce. Long-range-ordered periodic magnetic structures do not form (like they do in the hexagonal HEAs containing heavy-RE elements only), but the magnetic structure breaks up into ferromagnetically (FM) polarized spin domains distributed in size that orient randomly in zero field. The magnetically ordered state of the HEA-Ce can be described as a disordered FM state with a 2nd-order thermodynamic FM phase transition at TC= 140 K. The introduction of Ce did not yield any of the phenomena that are exceptional for the Ce-containing alloys and compounds (mixed valence, heavy-fermion, unconventional superconductivity).
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
maggiexjl完成签到,获得积分10
2秒前
9秒前
孤岛发布了新的文献求助10
14秒前
zgx完成签到 ,获得积分10
15秒前
Wang完成签到 ,获得积分20
16秒前
NS完成签到,获得积分0
20秒前
NexusExplorer应助孤岛采纳,获得10
24秒前
xlj730227完成签到 ,获得积分10
30秒前
Billy应助AliEmbark采纳,获得30
48秒前
kmzzy完成签到,获得积分10
51秒前
严冰蝶完成签到 ,获得积分10
1分钟前
1分钟前
科研通AI2S应助科研通管家采纳,获得10
1分钟前
量子星尘发布了新的文献求助10
1分钟前
常有李完成签到,获得积分10
1分钟前
1分钟前
1分钟前
黄淮科研小白龙完成签到 ,获得积分10
2分钟前
X519664508完成签到,获得积分0
2分钟前
WYK完成签到 ,获得积分10
2分钟前
zhangsan完成签到,获得积分10
3分钟前
大个应助cc采纳,获得10
3分钟前
CodeCraft应助科研通管家采纳,获得10
3分钟前
丘比特应助科研通管家采纳,获得10
3分钟前
量子星尘发布了新的文献求助10
3分钟前
3分钟前
cc发布了新的文献求助10
3分钟前
AliEmbark完成签到,获得积分10
3分钟前
3分钟前
azz完成签到 ,获得积分10
3分钟前
iShine完成签到 ,获得积分10
4分钟前
真真完成签到 ,获得积分10
4分钟前
轩辕德地完成签到,获得积分10
4分钟前
xdd完成签到 ,获得积分10
4分钟前
沙海沉戈完成签到,获得积分0
4分钟前
4分钟前
4分钟前
azz发布了新的文献求助10
4分钟前
SciGPT应助azz采纳,获得10
4分钟前
量子星尘发布了新的文献求助10
4分钟前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3976683
求助须知:如何正确求助?哪些是违规求助? 3520770
关于积分的说明 11204819
捐赠科研通 3257565
什么是DOI,文献DOI怎么找? 1798739
邀请新用户注册赠送积分活动 877897
科研通“疑难数据库(出版商)”最低求助积分说明 806629