English
Related papers

Related papers: Strain effects on $n$-type doping in AlN

200 papers

Series of GaN/AlN superlattices (SLs) with various periods and the same thicknesses of GaN quantum wells and AlN barriers have been investigated. X-ray diffraction, photoluminescence (PL) and transmission electron microscopy (TEM)…

We have demonstrated the effect of hydrostatic pressure on magnetic and transport properties, and thermal transport properties in electron-doped manganites CaMn$_{1-x}$Sb$_{x}$O$_{3}$. The substitution of Sb$^{5+}$ ion for Mn $^{4+}$site of…

Strongly Correlated Electrons · Physics 2015-05-18 Y. Murano , M. Matsukawa , S. Kobayashi , S. Nimori , R. Suryanarayanan , K. Koyama , N. Kobayashi

The doping and strain effects on the electron transport of monolayer MoS_2 are systematically investigated using the first-principles calculations with Boltzmann transport theory. We estimate the mobility has a maximum 275 cm^2/(Vs) in the…

Materials Science · Physics 2014-12-10 Yanfeng Ge , Wenhui Wan , Wanxiang Feng , Di Xiao , Yugui Yao

We report on a systematic study of the temperature-dependent Hall coefficient and thermoelectric power in ultra-thin metallic LaNiO$_3$ films that reveal a strain-induced, self-doping carrier transition that is inaccessible in the bulk. As…

Strongly Correlated Electrons · Physics 2012-04-11 E. J. Moon , J. M. Rondinelli , N. Prasai , B. A. Gray , M. Kareev , J. Chakhalian , J. L. Cohn

Electron-doped strontium titanate $\rm{SrTiO_3}$, known to be one of the most dilute superconductors, is investigated on the basis of the first-principles calculations. When the carrier density n decreases, the frequencies of the…

Superconductivity · Physics 2025-09-16 Riku Ikaida , Kazuhiro Sano , Yoshimi Masuda , Takuya Sekikawa , Yoshiaki Ōno

The limited quantum yield of strained monolayer transition metal dichalcogenides grown by vapor-phase methods and during transfer-based stacking poses a fundamental challenge for their optoelectronic applications. Here, we introduce the…

We achieved ohmic contacts down to 5 K on standard n-doped Ge samples by creating a strongly doped thin Ge layer between the metallic contacts and the Ge substrate. Thanks to the laser doping technique used, Gas Immersion Laser Doping, we…

Materials Science · Physics 2015-06-23 F. Chiodi , A. D. Chepelianskii , C. Gardes , G. Hallais , D. Bouchier , D. Débarre

Doping of semiconductor is necessary for various device applications. Exploiting chemistry at its reactive edges was shown to be an effective way to dope an atomically thin graphene nanoribbon (GNR) for realizing new devices in recent…

Mesoscale and Nanoscale Physics · Physics 2011-07-26 Yijian Ouyang , Stefano Sanvito , Jing Guo

Strain engineering in Sn-rich group IV semiconductors is a key enabling factor to exploit the direct band gap at mid-infrared wavelengths. Here, we investigate the effect of strain on the growth of GeSn alloys in a Ge/GeSn core/shell…

We investigate the compositional dependence of the total energy of the mixed crystals (Ga,Mn)As co-doped with As, Sn, and Zn. Using the ab initio LMTO-CPA method we find a correlation between the incorporation of acceptors (Mn, Zn) and…

Materials Science · Physics 2007-05-23 J. Masek , I. Turek , V. Drchal , J. Kudrnovsky , F. Maca

The study uses AACVD technology with nitrogen carrier gas to make AZO thin films through which it determines structural, optical, and morphological changes from 0 to 20 percent aluminum doping. The depositions took place at 400 degrees…

As one of the most abundant interstitial elements, nitrogen (N) is effective in improving yield strength of metallic materials, due to interstitial solid solution strengthening. Doping N can substantially enhance the yield strength but…

Hexagonal MnTe has emerged as a prototypical g-wave altermagnet, hosting time-reversal symmetry breaking in momentum space despite a vanishing net magnetization. While this symmetry breaking theoretically allows for an intrinsic anomalous…

Materials Science · Physics 2026-01-07 Weiwei Chen , Ziyu Zhou , Jie Meng , Weiyi Wang , Ye Yang , Zhongjun Li

Ultra-wide bandgap (UWBG) materials hold immense potential for high-power RF electronics and deep ultraviolet photonics. Among these, AlGaN emerges as a promising candidate, offering a tunable bandgap from 3.4 eV (GaN) to 6.1 eV (AlN) and…

We report Zn-doping effect in the parent and F-doped LaFeAsO oxy-arsenides. Slight Zn doping in LaFe$_{1-x}$Zn$_{x}$AsO drastically suppresses the resistivity anomaly around 150 K associated with the antiferromagnetic (AFM) spin density…

Superconductivity · Physics 2009-07-06 Yuke Li , Xiao Lin , Qian Tao , Cao Wang , Tong Zhou , Linjun Li , Qingbo Wang , Mi He , Guanghan Cao , Zhu'an Xu

In this work, nonlinear optical properties of Na: ZnO thin films (Na: ZnO) have been experimentally elaborated. The principal possibility to operate the nonlinear optical features using external laser beams is shown. The Na: ZnO films were…

We measured the temperature dependence of photoluminescence involved with the metastability of unintentionally doped GaN. Reaction energy U of donor atom is 0.1eV and shallow donor is more stable than deep center. The impurity transition…

Materials Science · Physics 2007-05-23 C. S. Park , T. W. Kang

Electronic degrees of freedom and their coupling to lattice vibrations in semiconductors can be strongly modified by doping. Accordingly, the addition of surplus charge carriers to chirality-mixed carbon nanotube samples has previously been…

Chemical Physics · Physics 2021-01-18 Klaus H. Eckstein , Florian Hirsch , Richard Martel , Tobias Hertel

Secondary Ions Mass Spectroscopy and Hall effect measurements were performed on boron doped silicon with concentration between 0.02 at.% and 12 at.%. Ultra-high boron doping was made by saturating the chemisorption sites of a Si wafer with…

Study and comparison of over 30 examples of electron doped BaFe2As2 for transition metal (TM) = Co, Ni, Cu, and (Co/Cu mixtures) have lead to an understanding that the suppression of the structural/antiferromagnetic phase transition to low…

Superconductivity · Physics 2009-08-04 P. C. Canfield , S. L. Bud'ko , N. Ni , J. Q. Yan , A. Kracher
‹ Prev 1 4 5 6 7 8 10 Next ›