Abstract
We investigate the anisotropy of the optical response (i.e., dichroism) in the representative ‘parent’ ferropnictide BaFe2As2. The dichroism is achieved through measurements of the optical reflectivity in a broad spectral range, across the tetragonal-to-orthorhombic and spin-density-wave (SDW) phase transitions, from which we extract the real part of the optical conductivity. The collection of data on the specimen with variable degree of detwinning is made possible via our novel pressure device which allows tuning in situ uniaxial stress. Thedichroism bears testimony to an important electronic polarization, reflecting the impact of the nematic phase and its fluctuations on the electronic structure.
Similar content being viewed by others
References
Fisher, I.R., Degiorgi, L., Shen, Z.X.: Rep. Prog. Phys 74, 124506 (2011). and references therein
Tanatar, M.A., Kreyssig, A., Nandi, S., Ni, N., Bud’ko, S.L., Canfield, P.C., Goldman, A.I., Prozorov, R.: Phys. Rev. B 79, 180508(R) (2009)
Chu, J.-H., Analytis, J.G., Press, D., De Greve, K., Ladd, T.D., Yamamoto, Y., Fisher, I.R.: Phys. Rev. B 81, 214502 (2010)
Ruff, J.P.C., Chu, J.-H., Kuo, H.-H., Das, R.K., Nojiri, H., Fisher, I.R., Islam, Z.: Phys. Rev. Lett 109, 027004 (2012)
Chu, J.-H., Kuo, H.-H., Analytis, J.G., Fisher, I.R.: Science 337, 710 (2012)
Kuo, H.-H., Shapiro, M.C., Riggs, S.C., Fisher, I.R.: Phys. Rev. B 88, 085113 (2013)
Kuo, H.-H., Fisher, I.R.: Phys. Rev. Lett 112, 227001 (2014)
Mirri, C., Dusza, A., Bastelberger, S., Chu, J.-H., Kuo, H.-H., Fisher, I.R., Degiorgi, L.: Phys. Rev. B 89, 060501(R) (2014). and Supplemental Material therein
Mirri, C., Dusza, A., Bastelberger, S., Chu, J.-H., Kuo, H.-H., Fisher, I.R., Degiorgi, L.: Phys. Rev. B 90, 155125 (2014)
Dressel, M., Grüner, G.: Electrodynamics of Solids Cambridge University Press. Cambridge, England (2002)
Mirri, C., Dusza, A., Bastelberger, S., Chinotti, M., Chu, J.-H., Kuo, H.-H., Fisher, I.R., Degiorgi, L.: Phys. Rev. Lett. 115, 107001 (2015)
Lucarelli, A., Dusza, A., Pfuner, F., Lerch, P., Analytis, J.G., Chu, J.-H., Fisher, I.R., Degiorgi, L.: New. J. Phys 12, 073036 (2010)
Sanna, A., Bernardini, F., Profeta, G., Sharma, S., Dewhurst, J.K., Lucarelli, A., Degiorgi, L., Gross, E.K.U., Massidda, S.: Phys. Rev. B 83, 054502 (2011)
Yin, Z.P., Haule, K., Kotliar, G.: Nat. Phys. 7, 294 (2011)
Chen, C.-C., Maciejko, J., Sorini, A.P., Moritz, B., Singh, R.R.P., Devereaux, T.P.: Phys. Rev. B 82, 100504(R) (2010)
Yi, M., Lu, D., Chu, J.-H., Analytis, J.G., Sorini, A.P., Kemper, A.F., Moritz, B., Mo, S.-K., Moore, R.G., Hashimoto, M., Lee, W.-S., Hussain, Z., Devereaux, T.P., Fisher, I.R., Shen, Z.-X.: PNAS 108, 6878 (2011)
Yi, M., Lu, D.H., Moore, R.G., Kihou, K., Lee, C.-H., Iyo, A., Eisaki, H., Yoshida, T., Fujimori, A., Shen, Z.-X.: New. J. Phys 14, 073019 (2012)
Lv, W., Phillips, P.: Phys. Rev. B 84, 174512 (2011)
Sugimoto, K., Kaneshita, E., Tohyama, T.: J. Phys. Soc. Jap 80, 033706 (2011)
Valenzuela, B., Bascones, E., Calderón, M.J.: Phys. Rev. Lett 105, 207202 (2010)
Acknowledgments
This work was supported by the Swiss National Science Foundation (SNSF). Work at Stanford University was supported by the Department of Energy, Office of Basic Energy Sciences under contract DE-AC02-76SF00515.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Chinotti, M., Mirri, C., Dusza, A. et al. Dichroism in the Parent Ferropnictide BaFe2As2 Across the Nematic Phase Transition. J Supercond Nov Magn 29, 667–672 (2016). https://doi.org/10.1007/s10948-015-3292-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10948-015-3292-2