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15 Mar 1981

Volume 38, Issue 6, pp. 399-474

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Defect photoluminescence from pulsed‐laser‐annealed ion‐implanted Si

M. S. Skolnick, A. G. Cullis, and H.C. Webber

Appl. Phys. Lett. 38, 464 (1981); http://dx.doi.org/10.1063/1.92405 (3 pages) | Cited 11 times

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Low‐temperature photoluminescence studies of pulsed‐laser annealed self‐ion‐implanted Si are reported. Two sharp damage luminescence peaks W and G are found. The main peak W is strongest at a laser energy of 1.5 J/cm2 even though this gives good recrystallization of the amorphous surface region. Most of the W centers are created by solid‐phase annealing of ion‐implantation damage in a band beyond the laser‐melted region. The G centers are present in the channeling tail of the implant before laser annealing.
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78.40.Fy Semiconductors
61.72.U- Doping and impurity implantation

Magnetic bubbles with different wall states in a (110) oriented garnet film

S. Konishi, J. Engemann, J. Heidmann, and T. Hibiya

Appl. Phys. Lett. 38, 467 (1981); http://dx.doi.org/10.1063/1.92406 (3 pages) | Cited 5 times

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In a (110) oriented (YTmBi)3(FeGa)5O12 garnet film with orthorhombic anisotropy, bubbles with different wall states were carefully studied using the bubble rocking method. Eight different bubble states have been identified, each belonging to a family of either large or small bubbles and coexisting at the same bias field. Each family is represented by elliptical S = 1,0,−1 and circular S = 0 bubbles. All bubbles have roughly the same mobility, whereas the static collapse fields differ as much as 6.1 Oe. Under all experimental conditions so far, we observed no conversion from small to large bubbles or vice versa, which indicates a remarkable stability of the two bubble families observed.
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75.70.Kw Domain structure (including magnetic bubbles and vortices)
75.60.Ch Domain walls and domain structure
75.30.Gw Magnetic anisotropy

Picosecond microwave pulse generation

Gerard Mourou, Charles V. Stancampiano, and Daniel Blumenthal

Appl. Phys. Lett. 38, 470 (1981); http://dx.doi.org/10.1063/1.92407 (3 pages) | Cited 37 times

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Picosecond duration X‐band microwave pulses have been generated using a laser‐activated photoconductive switch. These pulses have been used to observe the microwave reflection from optically excited germanium. The reflection measurements indicate that the microwave pulse has a full width at half‐maximum of 50 ps and is synchronized with picosecond precision to the laser pulse. A high‐resolution radar experiment is also reported.
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84.30.Sk Pulse and digital circuits
84.30.Qi Modulators and demodulators; discriminators, comparators, mixers, limiters, and compressors

Pyroelectric behavior of LiNbO3 at low temperatures

S. Vieira

Appl. Phys. Lett. 38, 472 (1981); http://dx.doi.org/10.1063/1.92379 (2 pages) | Cited 4 times

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A large enhancement of the ratio between the proelectric coefficient r and the heat capacity C is obtained for LiNbO3 for T<10 K. This suggests that this material could be a good infrared detector at low temperatures.
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77.70.+a Pyroelectric and electrocaloric effects
07.20.Mc Cryogenics; refrigerators, low-temperature detectors, and other low-temperature equipment
FREE

Erratum: Monte Carlo simulation of registration signals for electron beam microfabrication

Yi‐Ching Lin, Ilesanmi Adesida, and Andrew R. Neureuther

Appl. Phys. Lett. 38, 474 (1981); http://dx.doi.org/10.1063/1.92509 (1 page) | Cited 1 time

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Abstract Unavailable
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79.20.Kz Other electron-impact emission phenomena
02.50.Ng Distribution theory and Monte Carlo studies
05.40.-a Fluctuation phenomena, random processes, noise, and Brownian motion
99.10.Cd Errata
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