Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Xinzhi Xing"'
Autor:
Xinzhi Xing, John Contreras
Publikováno v:
IEEE Transactions on Magnetics. 55:1-6
This article presents an experimental method that uses the embedded contact sensor (ECS) in the head to characterize the head temperature change due to the electrical write signal. The thermal characterization results show that the head temperature r
Autor:
Jianping Chen, Jonas A. Goode, John Contreras, Alexander Taratorin, Yaw-Shing Tang, Xinzhi Xing, Maxim Nikiforov, Alex Shteyn
Publikováno v:
IEEE Transactions on Magnetics. 53:1-7
The continued increase in disk-storage areal density creates challenges for the write-head design and the write-current wave shape to control the magnetic fields that are written on the disk's recording media. The preamplifier's write driver has prog
Publikováno v:
IEEE Transactions on Magnetics. 47:3312-3315
Areal density capability of a recording system is traditionally determined in two steps. Linear density is first determined by on-track error rate. Track density is then determined by off-track read capability (OTRC) at the linear density chosen in s
Publikováno v:
IEEE Transactions on Magnetics. 46:790-797
As data rates continue to increase, front-end design techniques and analysis must evolve in order to manage the transmission line effects and the parasitic effects of the transducer, electronics, and electrical interconnect. In addition, the complete
Publikováno v:
IEEE Transactions on Magnetics. 42:108-113
In magnetic data storage the noise and signal-to-noise ratio (SNR) of the read heads is becoming more and more of a limiting factor given the smaller readout devices needed to follow the ever higher areal densities. For higher data rates this problem
Publikováno v:
IEEE Transactions on Magnetics. 41:2307-2317
This paper describes wide-band (1 MHz-10 GHz) thermal magnetic fluctuation (TMF) noise measurements conducted on magnetoresistive devices such as giant magnetoresistive (GMR) and tunnel junction magnetoresistive (TMR) heads. The paper discusses the i
Publikováno v:
IEEE Transactions on Magnetics. 40:195-202
This paper experimentally verifies that for low bias voltages /spl Lt/2 kT/q, the noise of a saturated magnetic tunnel junction (MTJ) device is caused by thermally assisted barrier crossings (thermal noise), whereas for voltages /spl Gt/2 kT/q, it st
Autor:
H.N. Bertram, Xinzhi Xing
Publikováno v:
IEEE Transactions on Magnetics. 35:2070-2079
A model for error rate analysis including the effect of texture noise is described. The impact of long-range correlated and nonstationary texture noise on system performance is examined for various types of partial response (PR4 and EPR4) channels an
Publikováno v:
IEEE Transactions on Magnetics. 43:2181-2183
In this paper, a simple technique that can determine the write head field rise time based on electrical measurements is presented. A model that relates the head electrical properties to the frequency dependent head efficiency epsiv(omega) and head fi
Publikováno v:
Journal of Applied Physics. 93:8573-8575
The noise expected from an ideal magnetic tunnel junction (MTJ) head is thermal noise at low bias voltages (≪50 mV, thermally assisted barrier crossings) and shot noise at higher bias voltages (≫50 mV, field-assisted barrier crossings). The shot