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Interferenz von Röntgenstrahlen und Wärmebewegung.
Leipzig, Johann Ambrosius Barth, 1914. No wrappers. In: ""Annalen der Physik. Vierte Folge. Hrsg. von W. Wien und M. Planck."", Bd. 43. (Heft 1), No 1,1914. The entire issue offered. The block is punched in inner margins after cords.Titlepage to vol. 43. Small stamp at foot of titlepage. Pp. 1-168. Debye's paper: pp. 49-95.
First appearance of this importent paper in which Debye announced his discovery of the so-called Debye-factor, later extended by Ivar Waller (1924) and then named the Debye-Waller factor.""The Debye-Waller factor (DWF), named after Peter Debye and Ivar Waller, is used in condensed matter physics to describe the attenuation of x-ray scattering or coherent neutron scattering caused by thermal motion. It has also been called the B factor or the temperature factor. Often, ""Debye-Waller factor"" is used as a generic term that comprises the Lamb-Mössbauer factor of incoherent neutron scattering and Mössbauer spectroscopy.""""Within a year of the discovery of X-ray diffraction by crystals by von Laue and the Braggs in 1912. Debye published three papers proving that the thermal movement of the atom in the crystal affected the X-ray interferences. Here he was examining from a different point of view the atomic lattice treated in his specific heat work. Late in 1913 he sent in for publication a long paper (the paper offered) deriving a factor now called the Debye factor, which gave the decrease of intensity of the diffration spotss as a function of wavelenght, diffraction angle, and absolute temperature.""(DSB III, p. 619.
Zur Theorie der spezifischen Wärmen.
(Leipzig, Johann Ambrosius Barth, 1912). No wrappers. In ""Annalen der Physik"", IV Folge, Bd. 39, No 14.Pp. 705-1072, textillustr. (entire issue (""Heft 14 (No. 14) offered). Debye's paper: pp. 789-839. Clean and fine but inner margins punched, with holes after binding strings.
First appearance of Debye's second paper. ""In his second outstanding paper (the offered item) Debye treated a solid as a system of vibrating atoms and modified Einstein's theory of specific heats, which had been only partially successful. He showed that the solid could be characterized by a complete spectrum of eigen-frequencies and that the specific heat of a monatomic solid was a universal function of the ratio theta/T, were theta is a tempature characteristic of the particular solid and T is the absolute tempature. Now commonly called the Debye temperature, theta could be calculated from the elastic constants of the solid. The Debye equation, involving the then recently developed quantum theory, gave agreement with observed specific heat values. Aside from a numerical factor, it differed from the Einstein equation in containg both the compressibility and and Poisson's ratio."" - Dictionary of Scientific Biography, volume 3, p.619.Debye received the 1936 Nobel Prize in Chemistry ""for his contributions to our knowledge of molecular structure through his investigations on dipole moments and on the diffraction of X-rays and electrons in gases"".
Näherungsformeln für die Zylinderfunktionen für große Werte des Arguments und unbeschränkt veränderliche Werte des Index.
Leipzig, B.G. Teubner, 1909. 8vo. Original printed wrappers, no backstrip and a small nick to front wrapper. In ""Mathematische Annalen. Begründet durch Rudolf Friedrich Alfred Clebsch. 67 Band. 4. Heft."" Entire issue offered. Internally very fine and clean. [Debye:] Pp. 535-58. [Entire issue: Pp. 433-575].
First printing of Debye's early paper on the method of the steepest descent. Debye used it to estimate Bessel functions.In mathematics, the method of steepest descent is an extension of Laplace's method for approximating an integral, where one deforms a contour integral in the complex plane to pass near a stationary point in roughly the direction of steepest descent or stationary phase.""Debye was not only a brilliant and original scientist but also a wise and shrewd man of the world. In the performance of administrative duties in Berlin, he had to spend a great deal of time dealing with Nazi bureaucrats. He had retained his Dutch citizenship when he came to Berlin, having been told by the minister of education that he would not be required to become a German citizen. However, not long after World War II broke out, he was informed that he could not enter his laboratory if he did not become a German citizen. He refused to do so and soon succeeded in getting to the United States, where he became a citizen in 1946. He had lectured many times in the United States and had declined offers of professorships at many leading universities"" but he now gave the Baker Lectures at Cornell University and was appointed professor of chemistry and head of the chemistry department there, positions which he held from 1940 to 1950, when he became professor emeritus. He continued active in research and consultation until the end of his life. The first ten years at Ithaca produced the work on light scattering, his last great contribution. Debye's many achievements were recognized by his election to membership in some twenty-two academies throughout the world and the award of twelve medals and eighteen honorary degrees."" (DSB).The issue also contains: Klein, Felix. Über Selbstspannungen ebener Diagramme. Pp. 433-444.
Zur Theorie der spezifischen Wärmen.
(Leipzig, Barth), 1912. No wrappers. In: ""Annalen der Phsyik"", 4th series, vol. 39, No. 14. Pp. 705-896 (entire issue offered). debye's paper: pp. 789-839. Clean and fine.
First edition""In his second outstanding paper (the offered item) Debye treated a solid as a system of vibrating atoms and modified Einstein's theory of specific heats, which had been only partially successful. He showed that the solid could be characterized by a complete spectrum of eigen-frequencies and that the specific heat of a monatomic solid was a universal function of the ratio theta/T, were theta is a tempature characteristic of the particular solid and T is the absolute tempature. Now commonly called the Debye temperature, theta could be calculated from the elastic constants of the solid. The Debye equation, involving the then recently developed quantum theory, gave agreement with observed specific heat values. Aside from a numerical factor, it differed from the Einstein equation in containg both the compressibility and and Poisson's ratio."" - Dictionary of Scientific Biography, volume 3, p.619.
Molekülstruktur. (Leipziger Vorträge 1931).
Leipzig, S. Hirzel, 1931. Orig. printed wrappers. VII,197 pp., 5 plates, textillustr.
First edition. Contributions by: K.L. Wilf, R. Mecke, F. Rasetti, P. Placzek, H. Sponer, V. Henri, R.de L. Kronig, G. Herzberg.
Struktur der Materie. Vier Vorträge. Mit 21 Abbildungen.
Leipzig, Hirzel, 1933. Orig. printed wrappers. (4),50 pp.
First edition.
