• Taylor, B., Maris, H. J. & Elbaum, C. Phonon focusing in solids. Phys. Rev. Lett. 23, 416–419 (1969).

    Article 
    ADS 

    Google Scholar
     

  • Northrop, G. A. & Wolfe, J. P. Ballistic phonon imaging in solids—a new look at phonon focusing. Phys. Rev. Lett. 43, 1424–1427 (1979).

    Article 
    ADS 

    Google Scholar
     

  • Hensel, J. C. & Dynes, R. C. Observation of singular behavior in the focusing of ballistic phonons in Ge. Phys. Rev. Lett. 43, 1033–1036 (1979).

    Article 
    ADS 

    Google Scholar
     

  • Bergman, T. L., Lavine, A. S., Incropera, F. P. & Dewitt, D. P. Fundamentals of Heat and Mass Transfer 7th edn (Wiley, 2011).

  • Ziman, J. M. Electrons and Phonons: The Theory of Transport Phenomena in Solids (Oxford Univ. Press, 1960).

  • Kuleyev, I. G., Kuleyev, I. I., Bakharev, S. M. & Ustinov, V. V. Phonon Focusing and Phonon Transport: In Single-Crystal Nanostructures (De Gruyter, 2020).

  • Bron, W. E. Nonequilibrium Phonon Dynamics (Springer, 1985).

  • Wolfe, J. P. Imaging Phonons: Acoustic Wave Propagation in Solids (Cambridge Univ. Press, 1998).

  • Li, S. et al. Metallic θ-phase tantalum nitride has a thermal conductivity triple that of copper. Science 391, 707–711 (2026).

    Article 
    ADS 

    Google Scholar
     

  • Li, M. et al. Electrically gated molecular thermal switch. Science 382, 585–589 (2023).

    Article 
    ADS 

    Google Scholar
     

  • Kang, J. S., Li, M., Wu, H., Nguyen, H. & Hu, Y. Experimental observation of high thermal conductivity in boron arsenide. Science 361, 575–578 (2018).

    Article 
    ADS 

    Google Scholar
     

  • Li, S. et al. Anomalous thermal transport under high pressure in boron arsenide. Nature 612, 459–464 (2022).

    Article 
    ADS 

    Google Scholar
     

  • Cui, Y., Li, M. & Hu, Y. Emerging interface materials for electronics thermal management: experiments, modeling, and new opportunities. J. Mater. Chem. C 8, 10568–10586 (2020).

    Article 

    Google Scholar
     

  • Li, M. et al. Advancing thermal management technology for power semiconductors through materials and interface engineering. Acc. Mater. Res. 6, 563–576 (2025).

    Article 

    Google Scholar
     

  • Su, C. et al. Nonclassical heat transfer and recent progress. ASME J. Heat Mass Transf. 147, 032502 (2025).

    Article 

    Google Scholar
     

  • Zrimsek, A. B. et al. Single-molecule chemistry with surface- and tip-enhanced Raman spectroscopy. Chem. Rev. 117, 7583–7613 (2017).

    Article 

    Google Scholar
     

  • Wang, X. et al. Tip-enhanced Raman spectroscopy for surfaces and interfaces. Chem. Soc. Rev. 46, 4020–4041 (2017).

    Article 
    ADS 

    Google Scholar
     

  • Deckert-Gaudig, T., Taguchi, A., Kawata, S. & Deckert, V. Tip-enhanced Raman spectroscopy—from early developments to recent advances. Chem. Soc. Rev. 46, 4077–4110 (2017).

    Article 

    Google Scholar
     

  • Sheen, C. W., Shi, J. X., Maartensson, J., Parikh, A. N. & Allara, D. L. A new class of organized self-assembled monolayers: alkane thiols on gallium arsenide(100). J. Am. Chem. Soc. 114, 1514–1515 (1992).

    Article 
    ADS 

    Google Scholar
     

  • Kim, K. & Lee, H. S. Effect of Ag and Au nanoparticles on the SERS of 4-aminobenzenethiol assembled on powdered copper. J. Phys. Chem. B 109, 18929–18934 (2005).

    Article 

    Google Scholar
     

  • Kang, J. S. et al. Integration of boron arsenide cooling substrates into gallium nitride devices. Nat. Electron. 4, 416–423 (2021).

    Article 

    Google Scholar
     

  • Cui, Y., Qin, Z., Wu, H., Li, M. & Hu, Y. Flexible thermal interface based on self-assembled boron arsenide for high-performance thermal management. Nat. Commun. 12, 1284 (2021).

    Article 
    ADS 

    Google Scholar
     

  • Kang, J. S., Li, M., Wu, H., Nguyen, H. & Hu, Y. Basic physical properties of cubic boron arsenide. Appl. Phys. Lett. 115, 122103 (2019).

    Article 
    ADS 

    Google Scholar
     

  • Dames, C. Ultrahigh thermal conductivity confirmed in boron arsenide. Science 361, 549–550 (2018).

    Article 
    ADS 

    Google Scholar
     

  • Li, S. et al. High thermal conductivity in cubic boron arsenide crystals. Science 361, 579–581 (2018).

    Article 
    ADS 

    Google Scholar
     

  • Tian, F. et al. Unusual high thermal conductivity in boron arsenide bulk crystals. Science 361, 582–585 (2018).

    Article 
    ADS 

    Google Scholar
     

  • Lindsay, L., Broido, D. A. & Reinecke, T. L. First-principles determination of ultrahigh thermal conductivity of boron arsenide: a competitor for diamond? Phys. Rev. Lett. 111, 025901 (2013).

    Article 
    ADS 

    Google Scholar
     

  • Fan, H., Wu, H., Lindsay, L. & Hu, Y. Ab initio investigation of single-layer high thermal conductivity boron compounds. Phys. Rev. B 100, 085420 (2019).

    Article 
    ADS 

    Google Scholar
     

  • Wu, H., Fan, H. & Hu, Y. Ab initio determination of ultrahigh thermal conductivity in ternary compounds. Phys. Rev. B 103, L041203 (2021).

    Article 
    ADS 

    Google Scholar
     

  • Wu, H., Qin, Z., Li, S., Lindsay, L. & Hu, Y. Nonperturbative determination of isotope-induced anomalous vibrational physics. Phys. Rev. B 108, L140302 (2023).

    Article 
    ADS 

    Google Scholar
     

  • Wu, H. & Hu, Y. Ab initio investigations on hydrodynamic phonon transport: from diffusion to convection. Int. J. Heat Mass Transf. 220, 124988 (2024).

    Article 

    Google Scholar
     

  • Garg, J., Bonini, N., Kozinsky, B. & Marzari, N. Role of disorder and anharmonicity in the thermal conductivity of silicon-germanium alloys: a first-principles study. Phys. Rev. Lett. 106, 045901 (2011).

    Article 
    ADS 

    Google Scholar
     

  • Feng, T., Lindsay, L. & Ruan, X. Four-phonon scattering significantly reduces intrinsic thermal conductivity of solids. Phys. Rev. B 96, 161201 (2017).

    Article 
    ADS 

    Google Scholar
     

  • Ren, B., Picardi, G. & Pettinger, B. Preparation of gold tips suitable for tip-enhanced Raman spectroscopy and light emission by electrochemical etching. Rev. Sci. Instrum. 75, 837–841 (2004).

    Article 
    ADS 

    Google Scholar
     

  • Broido, D. A., Malorny, M., Birner, G., Mingo, N. & Stewart, D. A. Intrinsic lattice thermal conductivity of semiconductors from first principles. Appl. Phys. Lett. 91, 231922 (2007).

    Article 
    ADS 

    Google Scholar
     

  • Ward, A., Broido, D. A., Stewart, D. A. & Deinzer, G. Ab initio theory of the lattice thermal conductivity in diamond. Phys. Rev. B 80, 125203 (2009).

    Article 
    ADS 

    Google Scholar
     

  • Esfarjani, K., Chen, G. & Stokes, H. T. Heat transport in silicon from first-principles calculations. Phys. Rev. B 84, 85204 (2011).

    Article 
    ADS 

    Google Scholar
     

  • Li, W. et al. Thermal conductivity of diamond nanowires from first principles. Phys. Rev. B 85, 195436 (2012).

    Article 
    ADS 

    Google Scholar
     

  • Fugallo, G. et al. Thermal conductivity of graphene and graphite: collective excitations and mean free paths. Nano Lett. 14, 6109–6114 (2014).

    Article 
    ADS 

    Google Scholar
     

  • Landon, C. D. & Hadjiconstantinou, N. G. Deviational simulation of phonon transport in graphene ribbons with ab initio scattering. J. Appl. Phys. 116, 163502 (2014).

    Article 
    ADS 

    Google Scholar
     

  • Kang, J. S., Wu, H., Li, M. & Hu, Y. Intrinsic low thermal conductivity and phonon renormalization due to strong anharmonicity of single-crystal tin selenide. Nano Lett. 19, 4941–4948 (2019).

    Article 
    ADS 

    Google Scholar
     

  • Qin, Z. et al. Moiré pattern controlled phonon polarizer based on twisted graphene. Adv. Mater. 36, 2312176 (2024).

    Article 

    Google Scholar
     

  • Srivastava, G. P. The Physics of Phonons (CRC Press, 1990).

  • Giannozzi, P. et al. QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials. J. Phys. Condens. Matter 21, 395502 (2009).

    Article 

    Google Scholar
     

  • Giannozzi, P. et al. Advanced capabilities for materials modelling with Quantum ESPRESSO. J. Phys. Condens. Matter 29, 465901 (2017).

    Article 

    Google Scholar
     

  • Tadano, T., Gohda, Y. & Tsuneyuki, S. Anharmonic force constants extracted from first-principles molecular dynamics: applications to heat transfer simulations. J. Phys. Condens. Matter 26, 225402 (2014).

    Article 
    ADS 

    Google Scholar
     

  • Hu, Y., Zeng, L., Minnich, A. J., Dresselhaus, M. S. & Chen, G. Spectral mapping of thermal conductivity through nanoscale ballistic transport. Nat. Nanotechnol. 10, 701–706 (2015).

    Article 
    ADS 

    Google Scholar
     

  • Kang, J. S., Wu, H. & Hu, Y. Thermal properties and phonon spectral characterization of synthetic boron phosphide for high thermal conductivity applications. Nano Lett. 17, 7507–7514 (2017).

    Article 
    ADS 

    Google Scholar
     

  • Chen, G. Nanoscale Energy Transport and Conversion: A Parallel Treatment of Electrons, Molecules, Phonons, and Photons (Oxford Univ. Press, 2005).