Measuring temperature and field profiles in heat assisted magnetic recording

被引：16

作者：

Hohlfeld, J. ^{[1
]}

Zheng, X. ^{[1
]}

Benakli, M. ^{[1
]}

机构：

[1] Seagate Technol, Bloomington, MN 55435 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2015年 / 118卷 / 06期

关键词：

MODEL;

D O I：

10.1063/1.4928310

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We introduce a theoretical and experimental framework that enables quantitative measurements of the temperature and magnetic field profiles governing the thermo-magnetic write process in heat assisted magnetic recording. Since our approach allows the identification of the correct temperature dependence of the magneto-crystalline anisotropy field in the vicinity of the Curie point as well, it provides an unprecedented experimental foundation to assess our understanding of heat assisted magnetic recording. (C) 2015 AIP Publishing LLC.

引用

收藏

页数：8

相关论文

共 12 条

[1] PRESENT STATUS OF TEMPERATURE DEPENDENCE OF MAGNETOCRYSTALLINE ANISOTROPY AND L(L+1)/2 POWER LAW [J].

CALLEN, HB ;

CALLEN, E .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1966, 27 (08) :1271-&

[2] Heat-assisted magnetic recording by a near-field transducer with efficient optical energy transfer [J].

Challener, W. A. ;

Peng, Chubing ;

Itagi, A. V. ;

Karns, D. ;

Peng, Wei ;

Peng, Yingguo ;

Yang, XiaoMin ;

Zhu, Xiaobin ;

Gokemeijer, N. J. ;

Hsia, Y. -T. ;

Ju, G. ;

Rottmayer, Robert E. ;

Seigler, Michael A. ;

Gage, E. C. .

NATURE PHOTONICS, 2009, 3 (04) :220-224

[3] Model of thermal erasure in neighboring tracks during thermomagnetic writing [J].

Lyberatos, A ;

Hohlfeld, J .

JOURNAL OF APPLIED PHYSICS, 2004, 95 (04) :1949-1957

[4] Thermal stability of the magnetization following thermomagnetic writing in perpendicular media [J].

Lyberatos, A ;

Guslienko, KY .

JOURNAL OF APPLIED PHYSICS, 2003, 94 (02) :1119-1129

[5] Temperature-dependent magnetic properties of FePt: Effective spin Hamiltonian model [J].

Mryasov, ON ;

Nowak, U ;

Guslienko, KY ;

Chantrell, RW .

EUROPHYSICS LETTERS, 2005, 69 (05) :805-811

[6]

Okamoto S, 2002, PHYS REV B, V66, DOI 10.1103/PhysRevB.66.024413

[7] The transition from longitudinal to perpendicular recording [J].

Richter, H. J. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2007, 40 (09) :R149-R177

[8] Direct Measurement of the Thermal Gradient in Heat Assisted Magnetic Recording [J].

Richter, H. J. ;

Poon, C. C. ;

Parker, G. ;

Staffaroni, M. ;

Mosendz, O. ;

Zakai, R. ;

Stipe, B. C. .

IEEE TRANSACTIONS ON MAGNETICS, 2013, 49 (10) :5378-5381

[9] The thermodynamic limits of magnetic recording [J].

Richter, H. J. ;

Lyberatos, A. ;

Nowak, U. ;

Evans, R. F. L. ;

Chantrell, R. W. .

JOURNAL OF APPLIED PHYSICS, 2012, 111 (03)

[10] Heat-assisted magnetic recording [J].

Rottmayer, Robert E. ;

Batra, Sharat ;

Buechel, Dorothea ;

Challener, William A. ;

Hohlfeld, Julius ;

Kubota, Yukiko ;

Li, Lei ;

Lu, Bin ;

Mihalcea, Christophe ;

Mountfield, Keith ;

Pelhos, Kalman ;

Peng, Chubing ;

Rausch, Tim ;

Seigler, Michael A. ;

Weller, Dieter ;

Yang, XiaoMin .

IEEE TRANSACTIONS ON MAGNETICS, 2006, 42 (10) :2417-2421