Qichen Song

Postdoc at @HarvardCCB, PhD from @MITMechE

[Nature Reviews Physics @NatRevPhys]

Material insights on electronic transport of charge and heat from first principles https://t.co/xaToUJEf8e

[Qichen Song @QichenSong]

Happy to share our recent work on microscopic domain effects in the metal–insulator transition of thin-film NdNiO₃. https://t.co/ozt2nh0lS4

[Bolin Liao @TeaLab_UCSB]

In JACS, we report a high-throughput computational search for materials with strong intrinsic photostriction, non-thermal strain induced by light illumination. While direct calculation of photostriction is difficult, we apply a simple thermodynamic Maxwell equation to convert photostriction coefficients into bandgap pressure/stress coefficients that are cheap to evaluate with DFT. Using this thermodynamic descriptor, we screened over 4700 semiconductors in the Materials Project database and discovered new photostrictive materials with two orders of magnitude stronger photostriction than silicon. Based on this large dataset, we also analyze the relationship between band edge orbital interactions and the photostriction coefficients.
https://t.co/d2MIqf5F6m

[Qichen Song @QichenSong]

@zhigangsuo His note provides more a detailed discussion on how to choose The Problem to work on.
https://t.co/eyUhKJdnT6

[Qichen Song @QichenSong]

@_FeiXia_ @UCIrvine Congrats!

[Nature Computational Science @NatComputSci]

📢Mingda Li and colleagues propose a virtual node graph neural network to enable the prediction of materials properties with variable output dimension. @MITEngineering @ScienceMIT @ChemistryMIT @MITEECS @mit_nse @ORNL https://t.co/geU9DyDnPY

➡️https://t.co/9UYSduwj2U

[Qichen Song @QichenSong]

@YanpuHe @SBME_UBC Congrats, Yanpu!

[Qichen Song @QichenSong]

Suguru Osako @ Boston Marathon.

[Qichen Song @QichenSong]

@Fallout Fallout is my favorite sci-fi game series, especially Fallout 4 and Fallout New Vegas. The old-timey music is such a joy and apparently the show keeps this tradition.

[Zhigang Suo @zhigangsuo]

Gang Chen will give the 2024 Winston Chen Lecture at Harvard.

Photomolecular Evaporation
11 am Boston time
5 April 2024
29 Pierce Hall, 29 Oxford Street, Cambridge, MA @hseas

Zoom link https://t.co/3VCLgDkGD7

Please kindly repost.

[Qichen Song @QichenSong]

Paper is online now! https://t.co/7hzxZa6VZV
We provide a noninvasive method to probe ambipolar mobility and thermal conductivity all at once.

[Qichen Song @QichenSong]

Here is the manuscript on how to measure carrier mobility and thermal conductivity simultaneously https://t.co/ZOSQPH1XQm

[Qichen Song @QichenSong]

I am going to give a talk at MRS spring this Friday (SF03.19.02, 3:45 pm) on the Study of Carrier and Thermal Transport in Semiconductors Using Frequency Domain Thermoreflectance. Looking forward to seeing you there!
https://t.co/JQqaLoyEhh

[Qichen Song @QichenSong]

Memories of the Houston Marathon.

[Qichen Song @QichenSong]

@zhigangsuo I am sorry to hear this. Please stay strong.

[Qichen Song @QichenSong]

@zhigangsuo For quantized states, such as harmonic oscillators at low temperatures, the thermal energy is not kb T. In such case, the thermal energy and temperature are not equivalent.

[Qichen Song @QichenSong]

Had a great fun running the Providence Half Marathon.

[Qichen Song @QichenSong]

@zhang_yirui @SchmidtFellows Congrats!

[Qichen Song @QichenSong]

I am going to give a talk at MRS spring this Friday (SF03.19.02, 3:45 pm) on the Study of Carrier and Thermal Transport in Semiconductors Using Frequency Domain Thermoreflectance. Looking forward to seeing you there!
https://t.co/JQqaLoyEhh

[Qichen Song @QichenSong]

I am presenting at APS March Meeting on Monday.
D61.00012 : Manipulating electron and phonon flow across interfaces using structural randomness (https://t.co/QjLf8pazkK).
Hope to see you there!

[Qichen Song @QichenSong]

Measuring the reflected light by an interface is easy, yet measuring the reflected thermal phonon is hard. The phonon reflection is the microscopic origin of interfacial thermal resistance. See details in this work https://t.co/bSQl99GvZ6