한국자기학회

Retrieve | Search

Issues

Current Issue(Vol.21,No.4)

Volume 21(2016)

· No.1(pp.1-158) XML

· No.2(pp.159-302) XML

· No.3(pp.303-475) XML

· No.4(pp.476-665) XML

Volume 20(2015)

· No.1(pp.1-96) XML

· No.2(pp.92-200) XML

· No.3(pp.201-329) XML

· No.4(pp.331-465) XML

Volume 19(2014)

· No.1(pp.1-100) XML

· No.2(pp101-204) XML

· No.3(pp.205-313) XML

· No.4(pp.315-417) XML

Volume 18(2013)

· No. 1(pp1-79) XML

· No. 2(pp81-219) XML

· No. 3(pp221-374) XML

· No. 4(pp375-493) XML

Volume 17(2012)

· No.1(pp1-71) XML

· No.2(pp73-162) XML

· No.3(pp163-232) XML

· No.4(pp233-308) XML

Volume 16 (2011)

· No.1(pp1-82) XML

· No.2(pp83-195) XML

· No.3(pp197-321) XML

· No.4(pp323-465) XML

Volume 15 (2010)

· No.1(pp1-44) XML

· No.2(pp45-98) XML

· No.3(pp99-147) XML

· No.4(pp149-224) XML

Volume 14 (2009)

· No.1(pp.1-51)

· No.2(pp.53-100)

· No.3(pp.101-136)

· No.4(pp137-180) XML

Volume 13 (2008)

· No.1(pp.1-34)

· No.2(pp.37-80)

· No.3(pp.81-113)

· No.4(pp.115-181)

Volume 12 (2007)

· No.1(pp.1-52)

· No.2(pp.53-92)

· No.3(pp.93-132)

· No.4(pp.133-161)

Volume 11 (2006)

· No.1(pp.1-59)

· No.2(pp.61-102)

· No.3(pp.119-150)

· No.4(pp.151-207)

Volume 10 (2005)

· No.1(pp.1-39)

· No.2(pp.41-75)

· No.3(pp.77-132)

· No.4(pp.133-170)

Volume 9 (2004)

· No.1(pp.1-26)

· No.2(pp.27-68)

· No.3(pp.69-95)

· No.4(pp.97-127)

Volume 8 (2003)

· No.1(pp.1-78)

· No.2(pp.79-102)

· No.3(pp.103-127)

· No.4(pp.129-168)

Volume 7 (2002)

· No.1(pp.1-23)

· No.2(pp.25-59)

· No.3(pp.63-125)

· No.4(pp.127-164)

Volume 6 (2001)

· No.1(pp.1-41)

· No.2(pp.43-76)

· No.3(pp.77-107)

· No.4(pp.109-145)

Volume 5 (2000)

· No.1(pp.1-25)

· No.2(pp.27-71)

· No.3(pp.73-109)

· No.4(pp.111-143)

Volume 4 (1999)

· No.1(pp.1-37)

· No.2(pp.39-69)

· No.3(pp.73-106)

· No.4(pp.107-135)

Volume 3 (1998)

· No.1(pp.1-38)

· No.2(pp.35-66)

· No.3(pp.67-109)

· No.4(pp.111-156)

Volume 2 (1997)

· No.1(pp.1-33)

· No.2(pp.35-66)

· No.3(pp.67-109)

· No.4(pp.111-156)

Volume 1 (1996)

· No.1(pp.1-54)

· No.2(pp.55-100)

No.1(pp.1-37)

Home > Issues > Volume 4 (1999) > No.1(pp.1-37)

Effects of Sweeping Rate on Magnetic Viscosity of Metal Evaporated Tape

Journal of Magnetics, Volume 4, Number 1, 31 Mar 1999, Pages 13-16

Pyung Woo Jang(Dept. of Physics, Chongju University), Young Gu Yoo(Dept. of Physics, Chungbuk University), Kyung Ho Shin(Dev. of Metals, korea Inst. of Sic. & Tech)

Abstract

Magnetic viscosities of a commercialized metal evaporated tape were measured as a function of sweeping rate in VSM at room temperature. Within several seconds in the viscosity measurement, curves are downward concave and more concave with increasing sweeping rate when magnetization were plotted as a logarithmic function of time. However, magnetization varied as a logarithmic function of time after several seconds. Magetic viscosity coefficient gradually increased with increasing sweeping rate and then kept a constant value at a rate faster than 61.5 Oe/s. It was supposed that magnetic viscosity occurs during field sweeping, which was in good agreement with Sharrock's model qualitatively. Activation volume decreased with increasing sweeping rate, which was due to the fact that magnetic viscosity coefficients increased with sweeping rate while irreversible susceptibilities were not affected by sweeping rate.

Keywords:

DOI:

Full Text: PDF

Copyright(c) 2009 The Korean Magnetics Society All rights reserved. E-mail : komag@unitel.co.kr