Direct visualization of a static incommensurate antiferromagnetic order in Fe-doped Bi2Sr2CaCu2O8+δ

In cuprate superconductors, due to strong electronic correlations, there are multiple intertwined orders which either coexist or compete with superconductivity. Among them, the antiferromagnetic (AF) order is the most prominent one. In the region where superconductivity sets in, the long-range AF order is destroyed. Yet the residual short-range AF spin fluctuations are present up to a much higher doping, and their role in the emergence of the superconducting phase is still highly debated. Here, by using a spin-polarized scanning tunneling microscope, we directly visualize an emergent incommensurate AF order in the nearby region of Fe impurities embedded in the optimally doped Bi2Sr2CaCu2O8+δ (Bi2212). Remarkably, the Fe impurities suppress the superconducting coherence peaks with the gapped feature intact, but pin down the ubiquitous short-range incommensurate AF order. Our work shows an intimate relation between antiferromagnetism and superconductivity.

Download Full-text

Spin-Polarized Scanning Tunneling Microscopy (SPSTM)

MRS Proceedings ◽

10.1557/proc-231-37 ◽

1991 ◽

Vol 231 ◽

Cited By ~ 4

Author(s):

R. Wiesendanger ◽

D. Buergler ◽

G. Tarrach ◽

I.V. Shvets ◽

H.-J. Guentherodt

Keyword(s):

Scanning Tunneling Microscope ◽

High Spatial Resolution ◽

Atomic Scale ◽

Scanning Tunneling ◽

Tunneling Microscopy ◽

Promising Technique ◽

Polarized Electrons ◽

Tunneling Microscope ◽

Magnetic Structures ◽

Spin Polarized

AbstractWe report on a novel promising technique for the investigation of magnetic structures at surfaces at high spatial resolution, ultimately down to the atomic scale. This technique is based on the observation of vacuum tunneling of spin-polarized electrons by means of a scanning tunneling microscope (STM). We discuss appropriate probe tips for the spin-polarized STM (SPSTM) and describe initial experimental results. We further focus on the information obtained by SPSTM. Finally, the perspectives of SPSTM will be discussed.

Download Full-text

Role of Inelastic Tunneling through the Insulating Barrier in Scanning-Tunneling-Microscope Experiments on Cuprate Superconductors

Physical Review Letters ◽

10.1103/physrevlett.97.117003 ◽

2006 ◽

Vol 97 (11) ◽

Cited By ~ 27

Author(s):

S. Pilgram ◽

T. M. Rice ◽

M. Sigrist

Keyword(s):

Scanning Tunneling Microscope ◽

Cuprate Superconductors ◽

Scanning Tunneling ◽

Tunneling Microscope ◽

Inelastic Tunneling

Download Full-text

Spin‐polarized secondary electrons from a scanning tunneling microscope in field emission mode

Applied Physics Letters ◽

10.1063/1.100887 ◽

1989 ◽

Vol 54 (6) ◽

pp. 587-589 ◽

Cited By ~ 38

Author(s):

R. Allenspach ◽

A. Bischof

Keyword(s):

Field Emission ◽

Scanning Tunneling Microscope ◽

Scanning Tunneling ◽

Secondary Electrons ◽

Tunneling Microscope ◽

Spin Polarized ◽

Emission Mode

Download Full-text

Spin-polarized electron tunneling detected using a scanning tunneling microscope

Surface Science ◽

10.1016/s0039-6028(97)00319-1 ◽

1997 ◽

Vol 386 (1-3) ◽

pp. 311-314 ◽

Cited By ~ 4

Author(s):

Zhanghua Wu ◽

Tomonobu Nakayama ◽

Makoto Sakurai ◽

Masakazu Aono

Keyword(s):

Scanning Tunneling Microscope ◽

Electron Tunneling ◽

Scanning Tunneling ◽

Tunneling Microscope ◽

Spin Polarized

Download Full-text

Observation of vacuum tunneling of spin-polarized electrons with the scanning tunneling microscope

Physical Review Letters ◽

10.1103/physrevlett.65.247 ◽

1990 ◽

Vol 65 (2) ◽

pp. 247-250 ◽

Cited By ~ 422

Author(s):

R. Wiesendanger ◽

H.-J. Güntherodt ◽

G. Güntherodt ◽

R. J. Gambino ◽

R. Ruf

Keyword(s):

Scanning Tunneling Microscope ◽

Scanning Tunneling ◽

Polarized Electrons ◽

Tunneling Microscope ◽

Spin Polarized

Download Full-text

Evidence of a topological antiferromagnetic order on ultrathin Cr(001) film surface studied by spin-polarized scanning tunneling spectroscopy

Journal of Applied Physics ◽

10.1063/1.1557352 ◽

2003 ◽

Vol 93 (10) ◽

pp. 6575-6577 ◽

Cited By ~ 15

Author(s):

T. Kawagoe ◽

Y. Suzuki ◽

M. Bode ◽

K. Koike

Keyword(s):

Film Surface ◽

Scanning Tunneling Spectroscopy ◽

Tunneling Spectroscopy ◽

Scanning Tunneling ◽

Antiferromagnetic Order ◽

Spin Polarized

Download Full-text

Observation Of Spin Polarized Photo-induced Tunneling Electron In Scanning Tunneling Microscope With GaAs And Ni

[1993] Digests of International Magnetics Conference ◽

10.1109/intmag.1993.642232 ◽

1993 ◽

Author(s):

K. Mukasa ◽

K. Sueoka ◽

K. Hayakawa

Keyword(s):

Scanning Tunneling Microscope ◽

Scanning Tunneling ◽

Tunneling Electron ◽

Tunneling Microscope ◽

Spin Polarized

Download Full-text

Writing and Deleting Single Magnetic Skyrmions

Science ◽

10.1126/science.1240573 ◽

2013 ◽

Vol 341 (6146) ◽

pp. 636-639 ◽

Cited By ~ 800

Author(s):

Niklas Romming ◽

Christian Hanneken ◽

Matthias Menzel ◽

Jessica E. Bickel ◽

Boris Wolter ◽

...

Keyword(s):

Scanning Tunneling Microscope ◽

Energy Landscape ◽

Magnetic Film ◽

Information Storage ◽

Scanning Tunneling ◽

Switching Rate ◽

Thermally Activated ◽

Spin Polarized ◽

Magnetic Skyrmions ◽

Future Information

Topologically nontrivial spin textures have recently been investigated for spintronic applications. Here, we report on an ultrathin magnetic film in which individual skyrmions can be written and deleted in a controlled fashion with local spin-polarized currents from a scanning tunneling microscope. An external magnetic field is used to tune the energy landscape, and the temperature is adjusted to prevent thermally activated switching between topologically distinct states. Switching rate and direction can then be controlled by the parameters used for current injection. The creation and annihilation of individual magnetic skyrmions demonstrates the potential for topological charge in future information-storage concepts.

Download Full-text

NANOSCALE CHARACTERIZATION BY SCANNING TUNNELING MICROSCOPY

COSMOS ◽

10.1142/s0219607707000256 ◽

2007 ◽

Vol 03 (01) ◽

pp. 23-50 ◽

Cited By ~ 1

Author(s):

HAI XU ◽

XIAN NING XIE ◽

M. A. K. ZILANI ◽

WEI CHEN ◽

ANDREW THYE SHEN WEE

Keyword(s):

Scanning Tunneling Microscope ◽

Scanning Tunneling ◽

Tunneling Microscopy ◽

Preparation Methods ◽

New Developments ◽

Tunneling Microscope ◽

Spin Polarized ◽

Nanoscale Characterization ◽

Working Principle ◽

Operational Modes

Nanoscale characterization is a key field in nanoscience and technology as it provides fundamental understanding of the properties and functionalities of materials down to the atomic and molecular scale. In this article, we review the development and application of scanning tunneling microscope (STM) techniques in nanoscale characterization. We will discuss the working principle, experimental setup, operational modes, and tip preparation methods of scanning tunneling microscope. Selected examples are provided to illustrate the application of STM in the nanocharacterization of semiconductors. In addition, new developments in STM techniques including spin-polarized STM (SP-STM) and multi-probe STM (MP-STM) are discussed in comparison with conventional non-magnetic and single tip STM methods.

Download Full-text