Magnetism and giant magnetoresistance of YMn6Sn6-xGax (x=0-1.8) compounds
文献类型：期刊论文
| 作者 | Zhang, SY ; Zhao, P ; Cheng, ZH ; Li, RW ; Sun, JR ; Zhang, HW ; Shen, BG |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2001 |
| 卷号 | 64期号:21页码:212404 |
| 关键词 | RMN2GE2 COMPOUNDS SMMN2GE2 ND |
| ISSN号 | 0163-1829 |
| 通讯作者 | Zhang, SY: Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | Magnetic and transport properties of YMn6Sn6-xGax(0 less than or equal tox less than or equal to1.8) compounds with the HfFe6Ge6-type structure were investigated. It was found that Ga substitution leads to a contraction of the unit-cell volume. A transition from an antiferromagnetic to a ferromagnetic (or ferrimagnetic) state can be observed for 0.1 less than or equal tox less than or equal to0.2 with increasing temperature. The antiferro-ferromagnetic transition for samples with x less than or equal to0.2 can also be induced by an external field. The metamagnetic transition field is very low, and decreases with increasing Ga concentration, Higher Ga concentration (x>0.2) leads to the samples being ferromagnetic in the whole temperature range below the Curie temperature. Ga substitution weakens the interlayer magnetic coupling between the Mn spins. Corresponding to the metamagnetic transition, a magnetoresistance as large as 32% in a field of 5 T was observed at 5 K for the sample with x=0.2. Results from the Sn-119 Mossbauer spectra indicate that the Mn-Mn coupling through the "Mn-Sn-Sn-Mn" slab change from antiferromagnetic in YMn6Sn6 to ferromagnetic by the substitution of Ga for Sn. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/41543]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhang, SY,Zhao, P,Cheng, ZH,et al. Magnetism and giant magnetoresistance of YMn6Sn6-xGax (x=0-1.8) compounds[J]. PHYSICAL REVIEW B,2001,64(21):212404. |
| APA | Zhang, SY.,Zhao, P.,Cheng, ZH.,Li, RW.,Sun, JR.,...&Shen, BG.(2001).Magnetism and giant magnetoresistance of YMn6Sn6-xGax (x=0-1.8) compounds.PHYSICAL REVIEW B,64(21),212404. |
| MLA | Zhang, SY,et al."Magnetism and giant magnetoresistance of YMn6Sn6-xGax (x=0-1.8) compounds".PHYSICAL REVIEW B 64.21(2001):212404. |
入库方式： OAI收割
来源：物理研究所
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