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Two-dimensional colloidal halide perovskite nanocrystals are promising materials for light emitting applications. In addition, they can be used as components to create a variety of materials through physical and chemical transformations.…

Quantifying the temperature of microdevices is critical for probing nanoscale energy transport.Such quantification is often accomplished by integrating resistance thermometers into microdevices. However, such thermometers frequently become…

Mesoscale and Nanoscale Physics · Physics 2021-05-05 Amin Reihani , Shen Yan , Yuxuan Luan , Rohith Mittapally , Edgar Meyhofer , Pramod Reddy

The optimization of secondary phase in thermoelectric(TE) materials can {helps in improvisation of material's efficiency}. Being a potential {contender} for lower temperature TE application, bismuth telluride(Bi$_2$Te$_3$) nanoparticles…

Materials Science · Physics 2020-07-27 Vishal Thakur , Kanika Upadhyay , Ramanpreet Kaur , Navdeep Goyal , Sanjeev Gautam

The mechanical performance and microstructures of a CoCrNi medium-entropy alloy (MEA) and NCoCrNi, alloyed with 0.5at% N, after high pressure torsion (HPT) and subsequent annealing treatments in a temperature range of 150-1000 {\deg}C were…

Metal halide perovskites are promising materials for optoelectronic applications owing to their outstanding optical and electronic properties. Among them, all-inorganic perovskites such as CsPbBr$_3$ offer superior thermal and chemical…

We report the thermoelectric (TE) properties of Na$_{0.74}$Co$_{0.95}$Nb$_{0.05}$O$_{2}$ in the temperature range $300-1200$ K, as a potential candidate for p-type thermoelectric material. The experimental values of Seebeck coefficient (S)…

Strongly Correlated Electrons · Physics 2019-11-18 Arzena Khatun , Shamim Sk , Jayashree Pati , R. S. Dhaka , Sudhir K. Pandey

Metalization of carbon fiber reinforced polymers (CFRPs) composites by the surface modification method to enhance their electrical conductivity, thermal conductivity, electromagnetic shielding, erosion, and radiation protection, has a…

Materials Science · Physics 2020-10-22 Jiayu Sun , Shaoyun Zhou , Kenta Yamanakab , Yuji Ichikawa , Hiroki Saito , Kazuhiro Ogawa , Akihiko Chiba

Polycrystalline sample of the new layered superconductor Bi4O4S3 is successfully synthesized by solid-state reaction method by using Bi, S and Bi2O3 powders with one step reaction. The superconducting transition temperature (Tconset=4.5 K),…

Superconductivity · Physics 2012-10-09 S. G. Tan , L. J. Li , Y. Liu , P. Tong , B. C. Zhao , W. J. Lu , Y. P. Sun

In this work, thermoelectric properties of Al$_{1.2}$Fe$_2$B$_2$ compound were investigated over a temperature range from 300\,K to 773\,K. Al$_{1.2}$Fe$_2$B$_2$ compound was produced by vacuum arc melting of Al, Fe, and B followed by…

Materials Science · Physics 2022-12-05 Duraisamy Sivaprahasam , Ashutosh Kumar , Babu Jayachandran , Raghavan Gopalan

Thermoelectric materials can generate electricity directly utilizing heat and thus, they are considered to be eco-friendly energy resources. The thermoelectric efficiency at low temperatures is impractically small, except only a few bulk…

Materials Science · Physics 2022-05-10 Enamul Haque

Superconductivity and its underlying mechanisms are one of the most active research fields in condensed-matter physics. An important question is how to enhance the transition temperature $T_{\rm c}$ of a superconductor. In this respect, the…

Superconductivity · Physics 2018-05-02 M. Kriener , M. Kamitani , T. Koretsune , R. Arita , Y. Taguchi , Y. Tokura

We propose and demonstrate a method to achieve large effective Soret coefficient in colloids by suitably mixing two different particles, e.g., silica beads and Fe3O4 nanoparticles. It is shown that the thermophoretic motion of Fe3O4…

Soft Condensed Matter · Physics 2012-08-02 Hai-Dong Deng , Ting Sun , Zhi-Cheng Fu , Hai-Ying Liu , Qiao-Feng Dai , Li-Jun Wu , Sheng Lan , Venu Gopal Achanta

Nano-structured molybdenum-copper composites have been produced through severe plastic deformation of liquid-metal infiltrated Cu30Mo70 and Cu50Mo50 (wt.%) starting materials. Processing was carried out using high pressure torsion at room…

Applied Physics · Physics 2017-05-16 Julian M. Rosalie , Jinming Guo , Reinhard Pippan , Zaoli Zhang

A novel approach to developing high entropy alloys (HEAs) using spark plasma sintering (SPS) was explored in this work where a mix of commercial commodity powders like Ni625, CoCrF75, and 316L was used instead of pre-alloyed powders…

Materials Science · Physics 2023-05-30 S Venkatesh Kumaran , Dariusz Garbiec , José Manuel Torralba

Experimental measurements clearly reveal the presence of bulk superconductivity in the CsPbxBi4-xTe6 (0.3=<x=<1.0) materials, i.e. the first member of the thermoelectric series of Cs[PbmBi3Te5+m], these materials have the layered…

Superconductivity · Physics 2015-12-09 R. X. Zhang , H. X. Yang , H. F. Tain , G. F. Chen , S. L. Wu , L. L. Wei , J. Q. Li

Using the isothermal molecular dynamics (MD), coalescence/sintering of Au nanoparticles (NPs) was simulated by employing the Nose-Hoover thermostat. The MD simulation was realized by using the well-known open program LAMMPS, its version for…

Mesoscale and Nanoscale Physics · Physics 2021-06-29 V. V. Puytov , I. V. Talyzin , V. M. Samsonov

Thermoelectric materials operating at cryogenic temperatures are in high demand for efficient cooling and power generation in applications ranging from superconductors to quantum computing. The narrow band-gap semiconductor FeSb2, known for…

Materials Science · Physics 2023-11-02 Deepak Gujjar , Sunidhi Gujjar , V. K. Malik , Hem C. Kandpal

High entropy materials offer a promising avenue for thermoelectric materials discovery, design, and optimization. However, the large chemical spaces that need to be explored hamper their development. In this work, a large family of…

Samples of $\alpha$-SiC have been sintered with liquid phase (LPS) to 1950 $^\circ$C, in atmosphere of argon and processing times between 1 and 7 hours. Using scanning electron microscopy (SEM) the microstructure of the samples has been…

A series of FeSe0.5Te0.5 bulk samples have been prepared through the high gas pressure and high-temperature synthesis (HP-HTS) method to optimize the growth conditions, for the first time and investigated for their superconducting…

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