Subarna Das

In PNAS: Particle-like propagation to wave-like coherence crossover in phonon transport in zero-dimensional metal halide. Discrete structure and instability-rooted in Pauling’s third rule- induces anharmonicity @RiDdHiMoyPathak @anrf @IndiaDST @jncasr pnas.org/doi/10.1073/pn…

Candidates interested in Solid-state Chemistry and Topological Materials are invited to apply for the position…

Lone pair driven local cationic off-centering provide unique phonon-glass electron-crystal like thermoelectric transport in entropy stabilized AgGeSnSbTe4. Just out in @J_A_C_S. @ANRFIndia @IndiaDST @Maji_TK @animesh_bhui @jncasr pubs.acs.org/doi/10.1021/ja…

Our latest work, published in Advanced Energy Materials, reveals the impact of low-energy shear vibrations of Sb₂ bilayers on lattice thermal conductivity in (Sb₂)ₘ(Sb₂Te₃)ₙ topological quantum materials. Congratulations to @subarnadas_ & @shuvobiswas2000 etal. 🎉!

Excited to share my latest publication in Advanced Energy Materials! ✨ @BiswasLabJNC

🚨Announcement from @BiswasLabJNC WE ARE HIRING !!! Immediate Ph.D. position available. Students with a masters degree in Chemistry or Physics can apply. To know more about our group and the work that we do visit faculty.jncasr.ac.in/kanishka/ @kanishkabiswas @JNCASR @NCU_JNCASR

@RCSubhajit @ANRFIndia @chm_iiserb @iiserbhopal Congratulations 🎉🎉🎉

Grateful to @ANRFIndia for awarding our group #TQMLab @chm_iiserb @iiserbhopal the Prime Minister Early Career Research Grant!  Stay tuned for more updates from the lab!

Glassy thermal transport and zT of 2.7 in doped GeTe results from the inhomogeneous ferroelectric instability developed due to local polar distortions near the dopant sites. Just out in Advanced Materials @DebattamS @subarnadas_ @jncasr advanced.onlinelibrary.wiley.com/doi/10.1002/ad…

Local distortion from Cu s-d coupling via the 2nd-order Jahn–Teller effect drives exceptional thermoelectric performance in metal sulfides. Just out in @J_A_C_S @kanishkabiswas @shuvobiswas2000 @VenkataMatu @MoinakDutta0 @te_materials pubs.acs.org/doi/10.1021/ja…

Onsite 4s-3d coupling in Cu drives the local distortion in CuS4 tetrahedra in TlCuS, which resulted in significant anharmonicity and promising thermoelectric performance. Just out in @J_A_C_S @animesh_bhui @VenkataMatu @jncasr @IndiaDST pubs.acs.org/doi/10.1021/ja…

Sub-valent (Bi2)4+ dimer acts as “twin rattler” in complex metal chalco-halide Bi13S18Br2 to tune its electronic and thermal transport properties, which makes it an excellent thermoelectric material. Just out in @J_A_C_S. @jncasr @IndiaDST pubs.acs.org/doi/full/10.10…

Excited to share my first article as a corresponding author in Physical Review B! We explore how anion vacancies suppress phonon transport without hindering charge carriers in Sb₂Te₃ thermoelectrics. Check it out! @PhysRevB @IndiaDST journals.aps.org/prb/abstract/1…

Nanostructured “ferecrystals” with TaSe2 in SnSe solid state matrix showed natural 2D superlattice heterostructure layers with “twisting”! Tremendous phonon scattering and high n-type zT of 2.2 @J_A_C_S @TanejaVaishali1 @jncasr @IndiaDST pubs.acs.org/doi/10.1021/ja…

Local structural instability and correlated atomic rattling due to Pauling’s third rule resulted in extremely low thermal conductivity and promising thermoelectric performance in TlAgSe. Just out in @angew_chem ; @jncasr @SERB @IndiaDST onlinelibrary.wiley.com/doi/abs/10.100…

Congratulations! Animesh Bhui (Ph.D. student, New Chemistry Unit) on receiving the Graduate Student Award from International Thermoelectric Society @TEnetworkUK Research guided by Prof. @kanishkabiswas @NCU_JNCASR @IndiaDST

Synthesis of a new hybrid indium halide with broad self trapped exitonic emission due to strong anharmonicity. Appeared in 2024 Pioneering Investigators Issue in @ChemCommun. Part of MS thesis of @shuvobiswas2000; @ArnabMandal @jncasr pubs.rsc.org/en/content/art…

Synthesis, structural transition and extremely low anisotropic phonon transport (2-300 K) in three new Pb-free hybrid layered double perovskite halides. Just appeared in Angewandte Chemie @angew_chem @serbonline @jncasr @IndiaDST onlinelibrary.wiley.com/doi/10.1002/an…

Enhanced Topological Surface State Mediated Transport Elevates Thermoelectric Performance in SnSb2Te4 Quantum Material By @kanishkabiswas et al. @jncasr Read the paper 👉 go.acs.org/9mq

@lakshitajindal Congratulations 🎉🎉

Excited to share my first publication in Physical Review E titled "Kibble Zurek scalings and coarsening laws in slowly quenched classical Ising chains". link.aps.org/doi/10.1103/Ph…

Hidden (local) structures have tremendous impact on materials properties. Synchrotron X-ray, neutron scattering, and high-resolution advanced electron microscopy are the key. See our ChemSocRev @DebattamS @animesh_bhui @fermiion @MoinakDutta0 @jncasr pubs.rsc.org/en/content/art…