相关论文: Does a glycine sodium nitrite crystal exist?

We argue that "L-valine ferric chloride" crystal reported by Geetha et al [Curr. Appl. Phys. 15 (2015) 201-207] is not a new nonlinear optical material but instead a dubious crystal.

The authors of a recent paper (Optik 125 (2014) 2022-2025) claim to have grown a so called thiosemicarbazide lead nitrate (TSLN) crystal by the slow evaporation method. In this comment we prove that TSLN is actually thiosemicarbazide.

The extraordinary properties of materials accompanying their phase transitions are exciting from the perspectives of scientific research and new applications. Most recently, Karothu et al.1 described guanidinium nitrate, [C(NH2)3]+[NO3]-,…

The L-arginine mixed potassium dihydrogenphosphate (KDP) crystal reported by Saravanan et al Indian J Pure App Phys 51 (2013) 254, is a dubious crystal. The reported unit cell parameters contradict the definition of the tetragonal crystal…

The authors of the title paper (Optik, 125 (2014) 1825-1828) claim to have synthesized a new nonlinear optical (NLO) gamma bis glycinium oxalate (GBGOx) crystal by slow evaporation solution technique. In this communication, many points of…

We argue that the L-aspartic acid nickel chloride crystal reported by the authors of the title paper (Optics Communications 2013) is actually the well-known diaqua(L-aspartato)nickel(II) hydrate crystal.

The slow evaporation of an aqueous solution containing L-valine and salicylic acid results in the fractional crystallization of salicylic acid and not any so called L-valinium salicylate as reported recently by Andal and Murugakoothan in…

We argue that the so-called l lysinium succinate (journal of crystal growth 426 (2015) 135), zinc chloride doped l lysinium succinate (journal of crystal growth 428 (2015) 24), and l threonine phthalate (journal of crystal growth 427 (2015)…

Gunasekaran et al (Pramana J. Phys. 75 683-690 (2010)) report to have grown the nonlinear optical crystals urea thiourea mercuric chloride (UTHC) and urea thiourea mercuric sulphate (UTHS). We argue that UTHC and UTHS are dubious crystals…

This monograph presents the results of experimental and theoretical studies of binary and ternary crystalline and glassy silicon tellurides. It provides a detailed description of the methods for synthesizing and growing bulk and…

In the preceding paper, we formulated a conjecture on the relations between certain classes of irreducible representations of affine Hecke algebras of type B and symmetric crystals for $\gl_\infty$. In the present paper, we prove the…

Inorganic nitrides with wurtzite crystal structures are well-known semiconductors used in optoelectronic devices. In contrast, rocksalt-based nitrides are known for their metallic and refractory properties. Breaking this dichotomy, here we…

we show that the pure and thiourea-doped glycyl-L-alanine hydrochloride (GLAH and TU-GLAH) crystals claimed to have been grown by the authors of the title paper (Journal of Russian Laser Research, 34, 346-350 (2013)) are dubious crystals.

A comment on the paper Appl. Phys. Lett. 104, 161116 (2014).

Composite hybrid gold crystals are of profound interest in various research areas ranging from materials science to biology. Their importance is due to their unique properties and potential implementation, for example in sensing or in…

We report free-standing atomic crystals that are strictly 2D and can be viewed as individual atomic planes pulled out of bulk crystals or as unrolled single-wall nanotubes. By using micromechanical cleavage, we have prepared and studied a…

We speculate that glass-forming liquids may contain fairly large and well-defined crystallites. This is based on arguing that the slowly relaxing "frozen-in" stresses characterizing ultraviscous liquids increase the barrier for nucleation,…

We present experimental data and computational analysis of the formation of GaN nanowires on graphene virtual substrates. We show that GaN nanowires on graphene exhibit nitrogen polarity. We employ the DFT-based computational analysis to…

The answer to the title question is yes and the sheets exhibit diffraction peaks but may not have long range crystalline order. This is not a trivial question and answer and is immersing in the very active field now days of the study of…

Using the methods of Kang et al. and recent results on the characters of Kirillov-Reshetikhin modules by Nakajima and Hernandez, the existence of Kirillov-Reshetikhin crystals B^{r,s} is established for all nonexceptional affine types. We…