@article{ISI:000430673700001, abstract = {Relative out-of-plane displacements of the constituent layers of two-dimensional materials give rise to unique low-frequency breathing modes. By computing the height-height correlation functions from molecular dynamics simulations, we show that the layer breathing modes (LBMs) can be mapped consistently to vibrations of a simple linear chain model. Our calculated thickness dependence of LBM frequencies for few-layer (FL) graphene and molybdenum disulfide (MoS2) are in excellent agreement with available experiments. Our results show a redshift of LBM frequency with an increase in temperature, which is a direct consequence of anharmonicities present in the interlayer interaction. We also predict the thickness and temperature dependence of LBM frequencies for FL hexagonal boron nitride. Our Rapid Communication provides a simple and efficient way to probe the interlayer interaction for layered materials and their heterostructures with the inclusion of anharmonic effects.}, article-number = {161406}, author = {Maity, Indrajit and Maiti, Prabal K. and Jain, Manish}, doi = {10.1103/PhysRevB.97.161406}, eissn = {2469-9969}, issn = {2469-9950}, journal = {PHYSICAL REVIEW B}, month = {APR 24}, number = {16}, orcid-numbers = {Maiti, Prabal/0000-0002-9956-1136 Jain, Manish/0000-0001-9329-6434 Maity, Indrajit/0000-0003-0547-7572}, researcherid-numbers = {Maiti, Prabal/B-6335-2009 Jain, Manish/A-8303-2010 }, times-cited = {2}, title = {Temperature-dependent layer breathing modes in two-dimensional materials}, unique-id = {ISI:000430673700001}, volume = {97}, year = {2018} }