Magnetoelasticity and the spin rotation transition in cobalt

2004 ◽  
Vol 82 (12) ◽  
pp. 1077-1084
Author(s):  
Michael O Steinitz ◽  
G Shane MacLeod ◽  
David A Pink ◽  
Bonnie Quinn ◽  
Gillian L Ryan
Keyword(s):  
Single Crystal ◽  
Temperature Dependence ◽  
Fourth Order ◽  
Phenomenological Theory ◽  
Spin Rotation ◽  
Spin Reorientation ◽  
Anisotropy Coefficient ◽  
74.25 Ha ◽  
Higher Order Terms ◽  
Reorientation Process

We study the spin reorientation process in cobalt using capacitance dilatometric measurements of the strain along the a- and c-axes of a single crystal and then apply a phenomenological theory of magnetostrictive interactions together with a theory of spin reorientation. We find no evidence of singularities in the behaviour at either of the temperatures at the beginning and end of this process. We calculate the temperature dependence of the magnetoelastic fourth-order single-ion anisotropy coefficient K4, and draw attention to the importance of higher order terms in the anisotropy. PACS Nos.: 74.25.Ha, 75.30.Gw, 75.50.Cc, 75.80.+q

Evidence of magneto-structural coupling during the spin reorientation process in TmFeO3 single crystal

2021 ◽  
Vol 523 ◽  
pp. 167626
Author(s):  
Yiming Cao ◽  
Qianfeng Zhuang ◽  
Shengxian Wei ◽  
Xunqing Yin ◽  
Hongwei Liu ◽  
...  
Keyword(s):  
Single Crystal ◽  
Spin Reorientation ◽  
Structural Coupling ◽  
Reorientation Process

Temperature dependence of impact deformation behavior of single crystal Ni based superalloy

2015 ◽  
Vol 31 (15) ◽  
pp. 1860-1866 ◽  
Author(s):  
Y. H. Yang ◽  
J. J. Yu ◽  
X. F. Sun ◽  
T. Jin ◽  
H. R. Guan
Keyword(s):  
Single Crystal ◽  
Temperature Dependence ◽  
Deformation Behavior ◽  
Impact Deformation

TEMPERATURE DEPENDENCE OFRHSIN ALUMINUM‐IMPLANTED LAYER INn‐TYPE SINGLE CRYSTAL SILICON

1969 ◽  
Vol 14 (9) ◽  
pp. 255-258 ◽  
Author(s):  
Tadatsugu Itoh ◽  
Taroh Inada ◽  
Masao Ishiki ◽  
Kenshi Menabe
Keyword(s):  
Single Crystal ◽  
Temperature Dependence ◽  
Single Crystal Silicon ◽  
Crystal Silicon

scholarly journals Temperature-Driven Spin Reorientation Transition in CoPt/AlN Multilayer Films

2012 ◽  
Vol 2012 ◽  
pp. 1-7
Author(s):  
Wupeng Cai ◽  
Shinji Muraishi ◽  
Ji Shi ◽  
Yoshio Nakamura ◽  
Wei Liu ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Mean Field ◽  
Multilayer Films ◽  
Spin Reorientation ◽  
Strong Temperature Dependence ◽  
Mean Field Model ◽  
Spin Reorientation Transition ◽  
Magnetoelastic Effect ◽  
Out Of Plane ◽  
Interface Anisotropy

Spin reorientation transition phenomena from out-of-plane to in-plane direction with increasing temperature are observed for the 500°C annealed CoPt/AlN multilayer films with different CoPt layer thicknesses. CoPt-AlN interface and volume anisotropy contributions, favoring out-of-plane and in-plane magnetization, respectively, are separately determined at various temperatures. Interface anisotropy exhibits much stronger temperature dependence than volume contribution, hence the temperature-driven spin reorientation transition occurs. Interface anisotropy in this work consists of Néel interface anisotropy and magnetoelastic effect. Magnetoelastic effect degrades rapidly and changes its sign from positive to negative above 200°C, because of the involvement of stress state in CoPt films with temperature. By contrast, Néel interface anisotropy decays slowly, estimated from a Néel mean field model. Thus, the strong temperature dependence of CoPt-AlN interface anisotropy is dominated by the change of magnetoelastic effect.

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