ELASTIC-CONSTANTS AND OBSERVATION OF SIGNIFICANT ELASTIC SOFTENING IN SUPERCONDUCTING BI2SR2CACU2O8 SINGLE-CRYSTALS
文献类型：期刊论文
| 作者 | WU, J ; WANG, YN ; GUO, PS ; SHEN, HM ; YAN, YF ; ZHAO, ZX |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 1993 |
| 卷号 | 47期号:5页码:2806 |
| 关键词 | CA-CU-O SOFT PHONON MODE STRUCTURAL INSTABILITY PHASE-TRANSITION SOUND VELOCITIES YBA2CU3O7-DELTA TC ANOMALIES MODULUS OXIDES |
| ISSN号 | 0163-1829 |
| 通讯作者 | WU, J: NANJING UNIV,DEPT PHYS,NANJING 210008,PEOPLES R CHINA. |
| 中文摘要 | The complete temperature-dependent elastic constants of superconducting Crystals Bi2Sr2CaCu2O8 (T(c) = 84 K) are determined from sound-velocity data. The longitudinal modes C-11, C22, and C(L) (propagating along the [110] direction) monotonically increase as temperature decreases from room temperature to T(c). The shear-mode elastic constants C66 exhibit a weak variation (< 1%) with temperature from 250 to 80 K except for three small softening minima around 240, 140, and 100 K. The in-plane shear mode C'(=[(C-11+C22)/2-C-12]/2) shows not only a relatively small absolute value, but also an overall trend of softening (11%) over a wide temperature range (200-100 K). The softening of the C' mode is consistent with the local-atomic-displacements model proposed from pulsed-neutron-scattering results. A possible relation between the softening of elastic constants and superconductivity is discussed. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/36896]  |
| 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 | WU, J,WANG, YN,GUO, PS,et al. ELASTIC-CONSTANTS AND OBSERVATION OF SIGNIFICANT ELASTIC SOFTENING IN SUPERCONDUCTING BI2SR2CACU2O8 SINGLE-CRYSTALS[J]. PHYSICAL REVIEW B,1993,47(5):2806. |
| APA | WU, J,WANG, YN,GUO, PS,SHEN, HM,YAN, YF,&ZHAO, ZX.(1993).ELASTIC-CONSTANTS AND OBSERVATION OF SIGNIFICANT ELASTIC SOFTENING IN SUPERCONDUCTING BI2SR2CACU2O8 SINGLE-CRYSTALS.PHYSICAL REVIEW B,47(5),2806. |
| MLA | WU, J,et al."ELASTIC-CONSTANTS AND OBSERVATION OF SIGNIFICANT ELASTIC SOFTENING IN SUPERCONDUCTING BI2SR2CACU2O8 SINGLE-CRYSTALS".PHYSICAL REVIEW B 47.5(1993):2806. |
入库方式： OAI收割
来源：物理研究所
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