Results 61 to 70 of about 129,819 (311)

Electrically and Magnetically Tunable Charge–Density–Wave Transport in Quasi‐2D h‐BN/1T‐TaS2 Field Effect Devices

Advanced Electronic Materials
Controlling collective electronic phases in low‐dimensional materials is a central challenge for developing technologies based on charge‐density‐waves.
Jonas O. Brown, Maedeh Taheri, Nicholas R. Sesing, Tina T. Salguero, Alexander A. Balandin   +4 more
doaj   +1 more source

A Thermodynamic Model of Antiferroelectics and Its Application to Electric Field Induced Antiferroelectric‐Ferroelectric Transition in PbZrO3

Advanced Functional Materials, EarlyView.
A thermodynamic model that incorporates ferroelectric, antiferroelectric, and antiferrodistortive orders of PbZrO3${\rm PbZrO}_3$ is established and parameterized based on experimental measurements and first‐principles calculations. We derive a Clapeyron‐like equation for describing the temperature‐dependence of critical electric fields for the ...
Zhiyang Wang, Guodong Zhao, Aiden Ross, Long‐Qing Chen   +3 more
wiley   +1 more source

Multifunctional Native Defects Boosting the Thermoelectric Transport in Few‐Layer PdPS

Advanced Electronic Materials
As a unique Cairo pentagonal 2D material, palladium phosphide sulfide (PdPS) has garnered immense interests due to its excellent optoelectronic properties, anisotropic electronic transport behavior, and good air‐stability.
Zehao Yu, Meilin Li, Yu Yang, Peng Yu, Ady Suwardi, Lifa Zhang, Yunshan Zhao   +6 more
doaj   +1 more source

Noise‐Limited Bit Precision in Ferroelectric Synaptic Transistors for High‐Resolution Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Low‐frequency noise spectroscopy defines the resolvable conductance states of synaptic FeFETs by coupling read‐current fluctuation with usable dynamic range. The resulting noise‐limited bit precision establishes a universal, device‐agnostic reliability metric beyond the memory window, enabling quantitative benchmarking and rational design of high ...
Jaehong Park, Yeonseop Shin, Changhyeon Han, Sangwoo Kim, Eunchan Park, Youngchan Cho, Jaehong Min, Hyunjun Ahn, Jaekyoung Park, Cheol‐Woong Yang, Jangsaeng Kim, Daewoong Kwon, Wonjun Shin   +12 more
wiley   +1 more source

Phonon manipulation with phononic crystals [PDF]

, 2012
In this work, we demonstrated engineered modification of propagation of thermal phonons, i.e. at THz frequencies, using phononic crystals. This work combined theoretical work at Sandia National Laboratories, the University of New Mexico, the University of Colorado Boulder, and Carnegie Mellon University; the MESA fabrication facilities at Sandia; and ...
Bongsang, Kim, Hopkins, Patrick Edward, Leseman, Zayd C., Goettler, Drew F., Su, Mehmet F. (University of New Mexico, Albuquerque, NM), El-Kady, Ihab Fathy, Reinke, Charles M., Olsson, Roy H., III   +10 more
openaire   +2 more sources

Electron–phonon interaction for adiabatic anharmonic phonons [PDF]

Journal of Physics: Condensed Matter, 2005
A model with Holstein-like electron-phonon coupling is studied in the limit of adiabatic phonons. The phonon distribution is anharmonic with two degenerate maxima. This model can be related to fermions in a correlated binary alloy and describes microscopic phase separation.
Ziegler, Klaus G., Schneider, Daniela
openaire   +3 more sources

Bulk‐Like Spin Cycloid and Fast Switching in Freestanding BiFeO3

Advanced Functional Materials, EarlyView.
Freestanding BiFeO3 membranes overcome substrate‐induced constraints by simultaneously restoring the intrinsic bulk‐like spin cycloid and enabling ≈50% faster ferroelectric switching than substrate‐clamped epitaxial thin films. This combination of robust noncollinear antiferromagnetic order and efficient electric‐field switching establishes ...
Pratap Pal, Xiaoxi Deng, Gi‐Yeop Kim, Kyoungjun Lee, Jheng‐Cyuan Lin, Prithwijit Mandal, Jiangfeng Yang, Paul Steadman, Pascal Manuel, Roger D. Johnson, Si‐Young Choi, Paolo G. Radaelli, Chang‐Beom Eom   +12 more
wiley   +1 more source

Pressure‐Assisted Dimensional Transformation of 2D Hydrogenated Borophene into 0D Boron Quantum Dots

Advanced Functional Materials, EarlyView.
Hydrogenated borophene (HB) is transformed into distinct boron nanostructures through a solvent‐free thermal process. Under flowing nitrogen, hydrogen escape promotes reconstruction into B2O3 nanoplatelets, whereas hydrogen‐induced pressure under sealed conditions facilitates fragmentation into boron quantum dots.
Ozden Gunes Yildiz, Ramin Yazdaanpanah, Yongfeng Guo, Pouriya Naziri, Sachin Kulkarni, Martina Mercurio, Maria Cristina Larciprete, Ilaria Fratoddi, Paul Simon, Wan‐Lu Li, Koray Aydin, Umut Aydemir   +11 more
wiley   +1 more source

Anisotropic Phonon Dynamics and Directional Transport in Actinide Van der Waals Semiconductor Uranium Triselenide

Advanced Functional Materials, EarlyView.
USe3 is introduced as an actinide van der Waals semiconductor that mirrors the quasi‐one‐dimensional physics of transition‐metal trichalcogenides. Polarization‐resolved Raman spectroscopy on exfoliated flakes maps strong in‐plane phonon anisotropy and strain‐tunable mode shifts.
Aljoscha Söll, Valentino Jadriško, Sourav Dey, Nassima Benchtaber, Kalyan Sarkar, Borna Radatović, Jan Luxa, Fedor Lipilin, Kseniia Mosina, Vojtěch Kundrát, Jakub Zalesak, Jana Vejpravová, Martin Žáček, Szymon J. Zelewski, Nikolas Antonatos, Christoph Gadermaier, José J. Baldoví, Zdeněk Sofer   +17 more
wiley   +1 more source

A systematic study of the negative thermal expansion in zinc-blende and diamond-like semiconductors

New Journal of Physics, 2019
Upon heating, almost all zinc-blende (ZB) and diamond-like semiconductors undergo volume contraction at low temperature, i.e. negative thermal expansion (NTE), instead of commonly expected expansion.
Kaike Yang, Jin Xiao, Jun-Wei Luo, Shu-Shen Li, Su-Huai Wei, Hui-Xiong Deng   +5 more
doaj   +1 more source