Multiple charge-density-wave transitions in single-crystalline ${\mathrm{Lu}}_{2}{\mathrm{Ir}}_{3}{\mathrm{Si}}_{5}$

Multiple charge-density-wave transitions in single-crystalline ${Lu}_{2} {Ir}_{3} {Si}_{5}$

N. S. Sangeetha, A. Thamizhavel, C. V. Tomy, Saurabh Basu, A. M. Awasthi, Piu Rajak, Somnath Bhattacharyya, S. Ramakrishnan, and D. Pal

Phys. Rev. B 91, 205131 – Published 26 May 2015

Abstract

The physical properties of the single-crystalline samples of ${Lu}_{2} {Ir}_{3} {Si}_{5}$ have been investigated by magnetic susceptibility, resistivity, and heat capacity studies. We observed multiple charge-density-wave (CDW) transitions in all the measurements. A strong thermal hysteresis at these transitions suggests a possible first order CDW ordering. In addition, the first order nature is ascertained by a very narrow and a huge cusp (62 J/mol K) in the zero field specific heat data which also suggests strong electron-phonon interchain coupling.

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Received 14 October 2013
Revised 5 May 2015

DOI:https://doi.org/10.1103/PhysRevB.91.205131

Authors & Affiliations

N. S. Sangeetha^1,*, A. Thamizhavel¹, C. V. Tomy², Saurabh Basu³, A. M. Awasthi⁴, Piu Rajak¹, Somnath Bhattacharyya¹, S. Ramakrishnan^1,†, and D. Pal^3,‡

¹Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai-400 005, India
²Department of Physics, Indian Institute of Technology Bombay, Mumbai-400076, India
³Department of Physics, Indian Institute of Technology Guwahati, Guwahati, Assam-781039, India
⁴UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore-452 001, India

^*nssangeetha@ameslab.gov; current address: Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA.
^†ramky@tifr.res.in
^‡dpal@iitg.ernet.in

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Vol. 91, Iss. 20 — 15 May 2015

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Physical Review B

covering condensed matter and materials physics

Multiple charge-density-wave transitions in single-crystalline ${Lu}_{2} {Ir}_{3} {Si}_{5}$

N. S. Sangeetha, A. Thamizhavel, C. V. Tomy, Saurabh Basu, A. M. Awasthi, Piu Rajak, Somnath Bhattacharyya, S. Ramakrishnan, and D. Pal

Phys. Rev. B 91, 205131 – Published 26 May 2015

Abstract

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Physical Review B

covering condensed matter and materials physics

Multiple charge-density-wave transitions in single-crystalline Lu2Ir3Si5

N. S. Sangeetha, A. Thamizhavel, C. V. Tomy, Saurabh Basu, A. M. Awasthi, Piu Rajak, Somnath Bhattacharyya, S. Ramakrishnan, and D. Pal

Phys. Rev. B 91, 205131 – Published 26 May 2015

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Multiple charge-density-wave transitions in single-crystalline ${Lu}_{2} {Ir}_{3} {Si}_{5}$