TY - GEN
T1 - New materials for spintronics
AU - De Long, Lance E.
AU - Shlyk, Larysa
AU - Cao, Gang
PY - 2009
Y1 - 2009
N2 - Advances in spintronic materials are hampered by interface and defect issues met in thin-film heterostructures that are difficult and expensive to fabricate. Therefore, discovery of new materials exhibiting a spectrum of structural, chemical and physical properties is desirable. We review two novel material classes with promising properties for applications. First, (Ba, Sr)(Fe,Co)2±xRu4±xO11 single crystals exhibit long-range ferromagnetic (FM) order at temperatures as high as 490 K, and semiconducting properties well suited for spin injection. Second, we have observed a strongly field-dependent, anisotropic electrical conductivity in bulk single crystals of Ca3(Ru1-xCrx) 2O7 (0 ≤ x ≤ 0.20), which opens new avenues for understanding the physics of the spin valve effect, and development of devices that do not require precision heterostructures.
AB - Advances in spintronic materials are hampered by interface and defect issues met in thin-film heterostructures that are difficult and expensive to fabricate. Therefore, discovery of new materials exhibiting a spectrum of structural, chemical and physical properties is desirable. We review two novel material classes with promising properties for applications. First, (Ba, Sr)(Fe,Co)2±xRu4±xO11 single crystals exhibit long-range ferromagnetic (FM) order at temperatures as high as 490 K, and semiconducting properties well suited for spin injection. Second, we have observed a strongly field-dependent, anisotropic electrical conductivity in bulk single crystals of Ca3(Ru1-xCrx) 2O7 (0 ≤ x ≤ 0.20), which opens new avenues for understanding the physics of the spin valve effect, and development of devices that do not require precision heterostructures.
UR - http://www.scopus.com/inward/record.url?scp=72849121203&partnerID=8YFLogxK
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U2 - 10.1109/ICEAA.2009.5297329
DO - 10.1109/ICEAA.2009.5297329
M3 - Conference contribution
AN - SCOPUS:72849121203
SN - 9781424433865
T3 - Proceedings of the 2009 International Conference on Electromagnetics in Advanced Applications, ICEAA '09
SP - 929
EP - 932
BT - Proceedings of the 2009 International Conference on Electromagnetics in Advanced Applications, ICEAA '09
T2 - 2009 International Conference on Electromagnetics in Advanced Applications, ICEAA '09
Y2 - 14 September 2009 through 18 September 2009
ER -