Suppression of charge density wave transitions in La(Ag<sub>1-x</sub>Au<sub>x</sub>)Sb<sub>2</sub> (0≤x≤1) by pressure.
ORAL
Abstract
LaAgSb2 exhibits two CDW transitions at ambient pressure: at T1 ~ 207 K a lattice modulation along the a-axis develops and upon further cooling, at T2 ~ 186 K, an additional CDW ordering along the c-direction appears. [1] Here, we report resistivity measurements on La(Ag1-xAux)Sb2 (0≤x≤1) samples at ambient and high pressure that reveal suppression of both CDW transitions by pressure and Au substitution. By introducing simple pressure scale shifts for different x-values, the T(P) data fall onto universal T1(P*) and T2(P*) curves. Results will be compared with and contrasted to the literature data on (La1-xRx)AgSb2 (R = Ce, Nd). [2]
[1] C. Song et al., Phys. Rev. B 68, 035113 (2003).
[2] M. Torikachvili et al., Phys. Rev. B 76, 235110 (2007).
[1] C. Song et al., Phys. Rev. B 68, 035113 (2003).
[2] M. Torikachvili et al., Phys. Rev. B 76, 235110 (2007).
*This work was supported by the Department of Energy, Basic Energy Sciences, Division of Materials Sciences and Engineering, under Contract No. DE-AC02-07CH11358.
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Presenters
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Sergey L. Bud'ko
- Iowa State University
- Ames Laboratory and Iowa State University
- Ames Lab
- Ames laboratory, Ames, IA
- Department of Physics & Astronomy, Iowa State University/Ames Laboratory
- Ames Laboratory
- Department of Physics and Astronomy, Iowa State University/Ames Laboratory
- Iowa State University and Ames Laboratory
- Iowa State University, Ames Laboratory
- Division of Materials Sciences & Engineering, Ames Lab and Iowa State University
- Iowa State University/Ames Laboratory