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Crucial role of internal collective modes in underdoped cuprates

Mallik, A V and Yadav, U K and Medhi, A and Krishnamurthy, H R and Shenoy, V B (2017) Crucial role of internal collective modes in underdoped cuprates. In: EPL, 119 (2).

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Official URL: http://doi.org/10.1209/0295-5075/119/27004


The enigmatic cuprate superconductors have attracted resurgent interest with several recent reports and discussions of competing orders in the underdoped side. Motivated by this, here we address the natural question of fragility of the d-wave superconducting state in underdoped cuprates. Using a combination of theoretical approaches we study t-J-like models, and discover an-as yet unexplored-instability that is brought about by an ``internal'' (anti-symmetric mode) fluctuation of the d-wave state. This new theoretical result is in good agreement with recent STM and ARPES studies of cuprates. We also suggest experimental directions to uncover this physics. Copyright (C) EPLA, 2017

Item Type: Journal Article
Publication: EPL
Additional Information: Copy right for this article belongs to the EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY, 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 01 Dec 2017 06:50
Last Modified: 01 Dec 2017 06:50
URI: http://eprints.iisc.ac.in/id/eprint/58364

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