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Irradiation of solid dielectrics with high‐energy electrons produces a region of negative space charge which may persist for a long time. The capacity of various dielectrics for charge storage and the characteristics of thermal and photoelectric charge release are discussed. Charge storage...
Pulse‐echo ultrasonic attenuation measurements were made for longitudinal and transverse waves in the 100, 110, and 111 propagation directions in NaCl specimens cut from a single boule. The attenuation α was proportional to the orientation factor Ω (relating the resolved stress on the slip...
The Curie point of KD 2 PO 4 is found to be 222°±1°K, which is 9°K higher than previously reported. It is believed that the higher value is due to more complete deuteration. Other physical properties (at room temperature unless otherwise noted) are as follows: dielectric constant from 208°...
Noise arising from the transduction of a storage medium, such as a magnetic tape, is analyzed for the case where the storage elements (magnetic domains) are noninteracting and the magnetic tape, except where otherwise specified, is homogeneous. Since the fields arising from the tape are uniquely...
In binary alloys of silver with Sm, Tb, Ho, and Tm, and of gold with Y, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, and Tm, intermediate phases containing stoichiometric proportions of the two metals were found to crystallize into the CsCl (B2)‐type structure. The lattice parameters of these phases are...
High‐purity zinc wires of different grain sizes were subjected to increasing tensile loading at different temperatures, and the associated changes in length, internal friction, and shear modulus were simultaneously measured. The work‐hardening coefficient was found to be parabolic and to...
Experiments have been carried out on Te‐doped (∼1–3×10 18 cm −3 ) GaAs crystals in which changes in n are measured when Li is introduced by diffusion and again after the Li is removed. The amounts of Li removed are determined by chemical analyses. It is found that two Li atoms introduced...
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