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Hokkaido University Collection of Scholarly and Academic Papers >
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Hybridization-driven orthorhombic lattice instability in $URu_{2}Si_{2}$
| Title: | Hybridization-driven orthorhombic lattice instability in $URu_{2}Si_{2}$ |
| Authors: | Yanagisawa, T. Browse this author | | Mombetsu, S. Browse this author | | Hidaka, H. Browse this author | | Amitsuka, H. Browse this author | | Akatsu, M. Browse this author | | Yasin, S. Browse this author | | Zherlitsyn, S. Browse this author | | Wosnitza, J. Browse this author | | Huang, K. Browse this author | | Janoschek, M. Browse this author | | Maple, M. B. Browse this author |
| Issue Date: | 26-Nov-2013 |
| Publisher: | American Physical Society |
| Journal Title: | Physical Review B |
| Volume: | 88 |
| Issue: | 19 |
| Start Page: | 195150-1 |
| End Page: | 195150-5 |
| Publisher DOI: | 10.1103/PhysRevB.88.195150 |
| Abstract: | We have measured the elastic constant $(C_{11}-C_{12})/2$ in $UR_{u2}Si_2$ by means of high-frequency ultrasonic measurements in pulsed magnetic fields $H \parallel [001]$ up to 61.8 T in a wide temperature range from 1.5 to 116 K. We found a reduction of $(C_{11}-C_{12})/2$ that appears only in the temperature and magnetic field region in which $UR_{u2}Si_2$ exhibits a heavy-electron state and hidden-order. This change in $(C_{11}-C_{12})/2$ appears to be a response of the 5$\it{f}$-electrons to an orthorhombic and volume conservative strain field $є_{xx}-є_{yy}$ with $Γ_3$ symmetry. This lattice instability is likely related to a symmetry- breaking band instability that arises due to the hybridization of the localized $\it{f}$ electrons with the conduction electrons, and is probably linked to the hidden-order parameter of this compound. |
| Rights: | ©2013 American Physical Society |
| Relation: | http://publish.aps.org/authors/transfer-of-copyright-agreement |
| Type: | article |
| URI: | http://hdl.handle.net/2115/53631 |
| Appears in Collections: | 環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 柳澤 達也
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